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STL - PHL

$54 Find Cheap Flights from St. Louis to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Philadelphia departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Search hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Philadelphia, as well as popular online travel agencies
In the last 7 days travelers have searched 46,479,581 times on KAYAK, and here is why:

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Cheap Flight Deals from St. Louis to Philadelphia (STL-PHL)

 
These are the cheapest deals for flights from St. Louis to Philadelphia currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Philadelphia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Philadelphia.

Recent one-way flight deals from St. Louis to Philadelphia

Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Philadelphia found on KAYAK recently.

Recent last minute flight deals from St. Louis to Philadelphia

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from St. Louis to Philadelphia.

Recent direct flight deals from St. Louis to Philadelphia

The latest deals for direct flights from St. Louis to Philadelphia so you can sit back and relax without the need for a layover.

Cheap bus & train deals from St. Louis to Philadelphia

Find recent round-trip train or bus tickets from St. Louis to Philadelphia.

All round-trip flight deals to Philadelphia

The cheapest plane tickets to Philadelphia found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:25 pm - 5:31 amSTL-PHL
11h 06m1 stop
8:45 am - 7:38 pmPHL-STL
11h 53m1 stop
$128Frontier
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Thu, Nov 14 - Mon, Nov 18
5:05 pm - 7:05 pmSTL-PHL
25h 00m1 stop
5:20 am - 11:28 pmPHL-STL
19h 08m1 stop
$138Frontier
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Sat, Feb 8 - Tue, Feb 11
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$243American Airlines
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Thu, Nov 21 - Sat, Nov 23
6:00 am - 9:12 amSTL-PHL
2h 12mnonstop
4:02 pm - 10:13 pmPHL-STL
7h 11m1 stop
$253American Airlines
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Fri, Dec 6 - Sun, Dec 8
7:05 pm - 12:55 amSTL-PHL
4h 50m1 stop
6:33 am - 12:03 pmPHL-STL
6h 30m1 stop
$262Delta
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Fri, Dec 6 - Sun, Dec 8
7:15 am - 3:32 pmSTL-PHL
7h 17m1 stop
6:50 am - 12:04 pmPHL-STL
6h 14m1 stop
$264Delta
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Thu, Nov 21 - Sun, Nov 24
7:00 am - 5:05 pmSTL-PHL
9h 05m2 stops
7:35 am - 3:20 pmPHL-STL
8h 45m2 stops
$307Southwest
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Fri, Dec 6 - Tue, Dec 10
6:50 am - 5:05 pmSTL-PHL
9h 15m2 stops
5:15 am - 9:05 amPHL-STL
4h 50m1 stop
$337Southwest
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Tue, Nov 19 - Fri, Nov 22
11:20 am - 5:29 pmSTL-PHL
5h 09m1 stop
10:10 am - 2:25 pmPHL-STL
5h 15m1 stop
$358United Airlines
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Wed, Nov 13 - Sun, Nov 17
8:00 am - 11:24 pmSTL-PHL
14h 24m2 stops
10:10 am - 2:14 pmPHL-STL
5h 04m1 stop
$448United Airlines
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Sat, Jan 25 - Sun, Jan 26
3:53 pm - 12:33 amSTL-PHL
7h 40m1 stop
$54Frontier
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Tue, Dec 17
3:53 pm - 12:33 amSTL-PHL
7h 40m1 stop
$59Frontier
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Tue, Dec 17
10:10 am - 5:29 pmSTL-PHL
6h 19m1 stop
$131United Airlines
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Fri, Dec 6
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
$135American Airlines
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Wed, Nov 13
7:00 am - 5:05 pmSTL-PHL
9h 05m2 stops
$149Southwest
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Tue, Nov 19
8:50 pm - 11:55 pmSTL-PHL
2h 05mnonstop
$157Southwest
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Sun, Dec 15
6:00 pm - 11:15 pmSTL-PHL
4h 15m1 stop
$158Delta
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Tue, Nov 19
6:30 am - 9:39 amSTL-PHL
2h 09mnonstop
$174American Airlines
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Tue, Dec 31
8:05 am - 2:20 pmSTL-PHL
5h 15m1 stop
$179United Airlines
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Thu, Nov 21
11:25 am - 5:37 pmSTL-PHL
5h 12m1 stop
$183Delta
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Fri, Nov 29
3:51 pm - 5:32 amSTL-PHL
12h 41m1 stop
7:39 pm - 11:54 pmPHL-STL
29h 15m1 stop
$228Frontier
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Mon, Nov 4 - Tue, Nov 12
8:33 am - 9:20 pmSTL-PHL
11h 47m1 stop
8:29 pm - 11:38 pmPHL-STL
28h 09m1 stop
Mon, Nov 4 - Wed, Nov 6
5:11 pm - 12:10 amSTL-PHL
5h 59m1 stop
8:38 pm - 11:13 pmPHL-STL
27h 35m1 stop
Sat, Nov 2 - Mon, Nov 4
5:03 pm - 7:36 amSTL-PHL
13h 33m1 stop
7:39 pm - 11:54 pmPHL-STL
29h 15m1 stop
$328Frontier
Find Deal
Sun, Nov 3 - Tue, Nov 5
8:57 am - 12:11 pmSTL-PHL
2h 14mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$699American Airlines
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Mon, Nov 4 - Tue, Nov 12
6:04 am - 12:40 pmSTL-PHL
5h 36m1 stop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$709American Airlines
Find Deal
Mon, Nov 4 - Tue, Nov 12
8:25 am - 1:51 pmSTL-PHL
4h 26m1 stop
10:10 am - 2:25 pmPHL-STL
5h 15m1 stop
$718United Airlines
Find Deal
Fri, Nov 1 - Tue, Nov 5
10:40 am - 5:05 pmSTL-PHL
5h 25m1 stop
7:35 am - 3:20 pmPHL-STL
8h 45m2 stops
$723Southwest
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Mon, Nov 4 - Wed, Nov 6
5:29 pm - 11:17 pmSTL-PHL
4h 48m1 stop
8:05 am - 11:52 amPHL-STL
4h 47m1 stop
$836Delta
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Fri, Nov 1 - Sun, Nov 3
6:30 am - 2:20 pmSTL-PHL
6h 50m1 stop
10:10 am - 2:25 pmPHL-STL
5h 15m1 stop
$978United Airlines
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Fri, Nov 1 - Tue, Nov 5
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$243American Airlines
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Thu, Nov 21 - Sat, Nov 23
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$269American Airlines
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Thu, Nov 14 - Mon, Nov 18
6:00 am - 9:12 amSTL-PHL
2h 12mnonstop
8:10 pm - 9:53 pmPHL-STL
2h 43mnonstop
$291American Airlines
Find Deal
Fri, Dec 6 - Mon, Dec 9
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$295American Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$304American Airlines
Find Deal
Fri, Nov 15 - Sun, Nov 17
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$313American Airlines
Find Deal
Mon, Nov 25 - Tue, Dec 3
6:40 am - 9:47 amSTL-PHL
2h 07mnonstop
7:19 pm - 8:59 pmPHL-STL
2h 40mnonstop
$314American Airlines
Find Deal
Thu, Nov 21 - Sun, Nov 24
6:00 am - 9:12 amSTL-PHL
2h 12mnonstop
11:10 am - 12:48 pmPHL-STL
2h 38mnonstop
$330American Airlines
Find Deal
Fri, Dec 6 - Sun, Dec 8
3:00 pm - 6:05 pmSTL-PHL
2h 05mnonstop
5:55 pm - 7:25 pmPHL-STL
2h 30mnonstop
$383Southwest
Find Deal
Thu, Nov 28 - Thu, Dec 5
8:50 pm - 11:55 pmSTL-PHL
2h 05mnonstop
8:40 am - 10:20 amPHL-STL
2h 40mnonstop
$418Southwest
Find Deal
Thu, Dec 19 - Wed, Jan 15
1:30 pm - 12:50 pmSt. Louis Gateway Station-
Philadelphia Convention Center
22h 20mnonstop
5:30 pm - 3:10 pmPhiladelphia Convention Center-
St. Louis Gateway Station
22h 40mnonstop
$236Greyhound
Find Deal
Fri, Dec 6 - Tue, Dec 10
8:45 am - 8:05 amSt. Louis Gateway Station-
Philadelphia Convention Center
22h 20mnonstop
3:55 am - 11:15 pmPhiladelphia Convention Center-
St. Louis Gateway Station
20h 20mnonstop
$236Greyhound
Find Deal
Fri, Dec 6 - Mon, Dec 9
12:50 am - 11:35 pmSt. Louis Gateway Station-
Philadelphia Convention Center
21h 45mnonstop
3:55 am - 11:15 pmPhiladelphia Convention Center-
St. Louis Gateway Station
20h 20mnonstop
$236Greyhound
Find Deal
Thu, Dec 5 - Mon, Dec 9
12:50 am - 11:35 pmSt. Louis Gateway Station-
Philadelphia Convention Center
21h 45mnonstop
10:40 am - 6:30 amPhiladelphia Convention Center-
St. Louis Gateway Station
20h 50mnonstop
$236Greyhound
Find Deal
Thu, Dec 5 - Tue, Dec 10
12:50 am - 11:35 pmSt. Louis Gateway Station-
Philadelphia Greyhound Terminal
21h 45mnonstop
3:55 am - 11:15 pmPhiladelphia Greyhound Terminal-
St. Louis Gateway Station
20h 20mnonstop
$238Greyhound
Find Deal
Thu, Dec 5 - Mon, Dec 9
1:30 pm - 12:50 pmSt. Louis Gateway Station-
Philadelphia Greyhound Terminal
22h 20mnonstop
3:55 am - 11:15 pmPhiladelphia Greyhound Terminal-
St. Louis Gateway Station
20h 20mnonstop
$238Greyhound
Find Deal
Fri, Dec 6 - Mon, Dec 9
1:30 pm - 12:50 pmSt. Louis Gateway Station-
Philadelphia Greyhound Terminal
22h 20mnonstop
10:40 am - 6:30 amPhiladelphia Greyhound Terminal-
St. Louis Gateway Station
20h 50mnonstop
$238Greyhound
Find Deal
Fri, Dec 6 - Tue, Dec 10
12:50 am - 11:35 pmSt. Louis Gateway Station-
Philadelphia Greyhound Terminal
21h 45mnonstop
10:40 am - 6:30 amPhiladelphia Greyhound Terminal-
St. Louis Gateway Station
20h 50mnonstop
$238Greyhound
Find Deal
Thu, Dec 5 - Tue, Dec 10
1:45 pm - 11:25 pmSt. Louis Gateway Station-
Philadelphia Independence Hall Visitors Ctr - 601 Market St
32h 40mnonstop
6:25 pm - 11:15 pmPhiladelphia Independence Hall Visitors Ctr - 601 Market St-
St. Louis Gateway Station
29h 50mnonstop
$258FlixBus, Greyhound
Find Deal
Fri, Dec 6 - Tue, Dec 10
1:45 pm - 11:25 pmSt. Louis Gateway Station-
Philadelphia Independence Hall Visitors Ctr - 601 Market St
32h 40mnonstop
1:45 am - 6:30 amPhiladelphia Independence Hall Visitors Ctr - 601 Market St-
St. Louis Gateway Station
29h 45mnonstop
$258FlixBus, Greyhound
Find Deal
Fri, Dec 6 - Mon, Dec 9

Flights from St. Louis to Philadelphia - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Philadelphia?

The average price of all flights from St. Louis to Philadelphia clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to Philadelphia, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from St. Louis to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Philadelphia is June, where tickets cost $173 on average. On the other hand, the most expensive months are February and April, where the average cost of tickets is $386 and $386 respectively.

Can I save money by flying with a layover from St. Louis to Philadelphia?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $1,205 on average

How far in advance should I book a flight from St. Louis to Philadelphia?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Philadelphia, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$54
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 34% lower on average.
Flight from St. Louis to Philadelphia

When to book flights from St. Louis to Philadelphia

Are your dates flexible? Find out the best times to travel from St. Louis to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Philadelphia

  • Does PHL have any pet relief areas?

    If you’re traveling with a pet through Philadelphia International Airport, please ensure that they remain in a safe carrier unless you’re using the pet relief areas. The pet relief areas at PHL are located at multiple points around the airport, including inside the terminals, in the departure areas, and the arrivals areas. For arriving passengers, the most conveniently-located relief areas can be found adjacent to Terminals A-East, Terminal B past baggage claim, and Terminal E along the Commercial Vehicle Roadway.

  • Which is the quickest way from St Louis to STL?

    There are multiple ways through which you can get to STL from the city center. The most popular method and also the most pocket-friendly would be using the metro, which can be boarded from the Civic Center. However, that isn’t the quickest. If you want to get to the airport within a shorter period, taking a taxi or driving via the I-64 W and I-170 N would be more ideal. This will take you about 15 minutes, while the metro will be 40 minutes on a good day.

  • Which airlines have a lounge at STL?

    At the moment, the only airline with a lounge at STL is American Airlines. They have an American Airlines Admirals Club located in Terminal 1 between Concourses B and C near Gate 1. Here you can find complimentary snacks and beverages, comfortable seats, TVs, and Wi-Fi. It is worth mentioning that the airport has other lounges: The USO Lounge and Wingtips Lounge, located in Concourse E on Terminal 2 near Gate E22.

  • How do I get to downtown Philadelphia from PHL?

    You can get to downtown Philly from PHL using multiple means, such as taxis, rental cars, airport shuttle, and public transit. For convenience, taxis and rental cars are a better choice since they are easily available at the airport and will take you to any destination in Philly. However, they are significantly more expensive compared to public transport.

  • What is the cheapest flight from St. Louis to Philadelphia?

    In the last 3 days, the lowest price for a flight from St. Louis to Philadelphia was $54 for a one-way ticket and $128 for a round-trip.

  • Do I need a passport to fly between St. Louis and Philadelphia?

    No

  • Which airports will I be using when flying from St. Louis to Philadelphia?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Philadelphia, also known as Philadelphia.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Philadelphia?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Philadelphia flight route: American Airlines, Delta, Alaska Airlines, Air Canada, JetBlue, and Lufthansa.

  • Which aircraft models fly most regularly from St. Louis to Philadelphia?

    The Airbus A319 is the aircraft model that flies most regularly on the St. Louis to Philadelphia flight route.

  • Which airline alliances offer flights from St. Louis to Philadelphia?

    oneworld is the only airline alliance operating flights between St. Louis and Philadelphia.

  • On which days can I fly direct from St. Louis to Philadelphia?

    There are nonstop flights from St. Louis to Philadelphia on a daily basis.

  • Which is the best airline for flights from St. Louis to Philadelphia, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Philadelphia are Southwest and Delta. With an average price for the route of $346 and an overall rating of 8.1, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $331 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PHL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from St. Louis to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $321 or less one-way and $498 or less round-trip.
  • If you want to leave your car at St. Louis Lambert International Airport (STL), please ensure that you compare the rates charged by airport parking to those charged by offsite parking companies. In most cases, the offsite parking lots charge lower rates compared to airport parking, and you even get a free shuttle to the terminals.
  • Traveling moms will be happy to know that PHL has multiple nursing suites where you can privately breastfeed your child. The Mamava Suites are located in four different areas; in Terminals A West and Terminal F, as well as the B/C and D/E Connectors. These nursing suites are available for free to all travelers.
  • To save on flight costs, consider booking your flight tickets in advance and be flexible with your travel dates. For example, avoid traveling on holidays and weekends since the ticket demand is usually higher on such days, so airlines will charge higher prices for these tickets.
  • Consider booking direct flights instead of connecting flights to make your trip more sustainable. This is because direct flights are shorter and therefore end up burning less fuel leading to lower carbon emissions compared to connecting flights.
  • If you need specific in-flight services such as Wi-Fi, please confirm their availability during the booking. This is because different flights tend to offer varying services even when serviced by the same airline.
See more tips

Prefer to fly non-stop from St. Louis to Philadelphia?

Find which airlines fly direct from Lambert-St Louis Airport to Philadelphia Airport, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Philadelphia

Monday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Tuesday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Wednesday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Thursday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Friday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Saturday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Sunday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

See more direct flights

Nonstop returns

Philadelphia to Lambert-St Louis

Monday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Tuesday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Wednesday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Thursday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Friday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Saturday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

Sunday

Aer Lingus, American Airlines, British Airways, +3 more

Aer Lingus, American Airlines, +4 more

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
SouthwestOverall score based on 5116 reviews
8.3Boarding
8.1Comfort
7.2Food
8.7Crew
7.7Entertainment
Airline reviews

It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.

6.0 GoodJames, Oct 2024DEN - AUS
Read more Southwest reviews

It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

Boarded the plane in Portland and sat on the tarmac for four hours before being given clearance to take off. Apparently a "scratch" was detected on the preflight inspection. This delay resulted in me missing my connection in Baltimore. I therefore had to stay overnight and then catch an early flight this morning, which resulted in my missing a mandatory class. I would like a refund / voucher to cover the cost of the missed flight. And additional voucher for the time spent on the plane in Portland would also be appreciated.

The fluidity of the entire process of boarding the plane the flight attendants attentiveness. The flight attendants also provided coloring books for my kids who loved it.

I used to fly SWA all the time. I know the crew has their little acts that are often fun, and entertaining. On this flight one of the crew was just not nice. Very surprising.

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

Delayed 4 hours due to mechanical issues. No mention of compensation for being over 3 hours late

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Bottom seat cushion is almost non existent. Very uncomfortable seat.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

Flight did not have seat back entertainment and the wifi was iffy.

Pretty standard flight. Delta has a good selection of movies.

The WiFi has been awful on my last few Delta Air Lines flights.

The seats are uncomfortable, feels like a small seat pad on plywood.

The seats are uncomfortable and there was no power to recharge a phone.

Flight heavily delayed. No food available despite purchasing an upgrade. No in cabin service.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

There was no air on the plane and it was very hot.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

Everything was awful Flight attendant was condescending, rude and not helpful at all. Small outdated plane. No service, uncomfortable seats. Flight attendant was really the worst. He used hand gestures to communicate instead of words and whenever he used words he was condescending.

They need to improve their boarding process. Group 1 and/or paying first class passengers shouldn't be in the middle of boarding process

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

American switched my flight to a 5 hour layover then cancelled my whole reservation with no notice and refused refund. Won’t fly with them again.

AA is fabulous. However , Iberia cancelled our Boston - Barcelona flight the morning of the flight - 9/16/24. This was almost a week ago and we have still heard nothing from Iberia/Vueling. Found out from a kayak email that morning that the flight was cancelled. Iberia Customer service reps wouldn’t help us and said to call Vueling. No one answers phone at Vueling. Terrible wild goose chase on DAY OF TRAVEL. AA came to our rescue.

temp inside the plane was very hot and could not be adjusted.

It was late, then the bathroom was inoperable plus it was very hot as well. Plane was very old

I was bumped to first class so I got some food. It was OK. Entertainment is whatever you bring with you since there are no seatback screens.

Another American flight delay. Gate staff was gratuitously abusive of anyone expressing frustration. This will be my last American Airlines flight

Horrible. 4 hrs delayed with no explanation for the multiple push outs of time. Wi-Fi didn’t work properly and air vent above seat was partially clogged. Bathroom sink did not work. Anything else you want to know?

Delayed 6 times. Eventually rebooked and missed a whole day of my vacation. Hot mess

This is a new route from Philadelphia to Naples. It was sold out. The team on board was excellent. I’ve flown this route twice this year and the flight has been excellent. I hope American keeps the route.

It was a good flight - not overbooked and in time.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

The crew was ghetto lol I felt like I was on an inner city field trip

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

Delayed for two hours due to trivial issues. No reimbursment. Also on arrival further delay due to terminal malfunction.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

Book cheap flights from St. Louis to Philadelphia

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Philadelphia found on KAYAK in the last 72 hours.
12/17Tue
1 stopFrontier
7h 40mSTL-PHL
$54
12/17Tue
1 stopFrontier
7h 40mSTL-PHL
$59
12/6Fri
1 stopUnited Airlines
6h 19mSTL-PHL
$131
11/13Wed
nonstopAmerican Airlines
2h 07mSTL-PHL
$135
11/19Tue
2 stopsSouthwest
9h 05mSTL-PHL
$149
12/15Sun
nonstopSouthwest
2h 05mSTL-PHL
$157
11/19Tue
1 stopDelta
4h 15mSTL-PHL
$158
12/31Tue
nonstopAmerican Airlines
2h 09mSTL-PHL
$174
11/21Thu
1 stopUnited Airlines
5h 15mSTL-PHL
$179
11/29Fri
1 stopDelta
5h 12mSTL-PHL
$183

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Last minute flights from St. Louis to Philadelphia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Philadelphia that are departing in the next 10 days.
11/4Mon
multi-stopFrontier
12h 41mSTL-PHL
11/12Tue
multi-stopFrontier
29h 15mPHL-STL
$228
11/4Mon
multi-stop
11h 47mSTL-PHL
11/6Wed
multi-stop
28h 09mPHL-STL
$303
11/2Sat
multi-stop
5h 59mSTL-PHL
11/4Mon
multi-stop
27h 35mPHL-STL
$307
11/3Sun
multi-stopFrontier
13h 33mSTL-PHL
11/5Tue
multi-stopFrontier
29h 15mPHL-STL
$328
11/4Mon
nonstopAmerican Airlines
2h 14mSTL-PHL
11/12Tue
nonstopAmerican Airlines
2h 40mPHL-STL
$699
11/4Mon
multi-stopAmerican Airlines
5h 36mSTL-PHL
11/12Tue
nonstopAmerican Airlines
2h 40mPHL-STL
$709
11/1Fri
multi-stopUnited Airlines
4h 26mSTL-PHL
11/5Tue
multi-stopUnited Airlines
5h 15mPHL-STL
$718
11/4Mon
multi-stopSouthwest
5h 25mSTL-PHL
11/6Wed
multi-stopSouthwest
8h 45mPHL-STL
$723
11/1Fri
multi-stopDelta
4h 48mSTL-PHL
11/3Sun
multi-stopDelta
4h 47mPHL-STL
$836
11/1Fri
multi-stopUnited Airlines
6h 50mSTL-PHL
11/5Tue
multi-stopUnited Airlines
5h 15mPHL-STL
$978

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Compare transportation modes for St. Louis to Philadelphia

Average priceAverage duration
Flights$7252h 07m
Buses$24725h 46m