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BOS - STL

$75 Find cheap flights from Boston to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to St. Louis departing on 7/2. 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.
1 adult
0 bags
Wed 7/3
Wed 7/10

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to St. Louis.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to St. Louis.
In the last 7 days travelers have searched 41,909,192 times on KAYAK, and here is why:

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Cheap flight deals from Boston to St. Louis (BOS-STL)

 
These are the cheapest deals for flights from Boston to St. Louis 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 Boston to St. Louis

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

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

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

Recent last minute flight deals from Boston to St. Louis

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

Recent direct flight deals from Boston to St. Louis

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

Cheap bus & train deals from Boston to St. Louis

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

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
9:06 am - 2:19 pmBOS-STL
6h 13m1 stop
9:32 pm - 10:08 amSTL-BOS
11h 36m1 stop
$163Frontier
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Sat, Jul 6 - Wed, Jul 10
12:32 pm - 8:42 pmBOS-STL
9h 10m1 stop
7:33 pm - 8:26 amSTL-BOS
11h 53m1 stop
$168Frontier
Find Deal
Wed, Jul 17 - Thu, Jul 18
8:27 pm - 5:29 pmBOS-STL
22h 02m1 stop
7:33 pm - 8:26 amSTL-BOS
11h 53m1 stop
Wed, Jul 17 - Tue, Aug 6
8:27 pm - 5:29 pmBOS-STL
22h 02m1 stop
7:33 pm - 8:26 amSTL-BOS
11h 53m1 stop
Wed, Jul 17 - Thu, Jul 18
10:56 am - 5:28 pmBOS-STL
31h 32m2 stops
3:23 pm - 9:17 amSTL-BOS
16h 54m1 stop
$187Spirit Airlines
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Wed, Jul 3 - Tue, Jul 9
6:10 am - 5:29 pmBOS-STL
12h 19m1 stop
10:11 am - 11:38 pmSTL-BOS
12h 27m1 stop
$192Spirit Airlines
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Thu, Jul 18 - Tue, Jul 23
12:23 pm - 7:47 pmBOS-STL
8h 24m1 stop
12:55 pm - 6:38 pmSTL-BOS
4h 43m1 stop
$302American Airlines
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Tue, Aug 6 - Mon, Aug 12
2:13 pm - 9:29 pmBOS-STL
8h 16m1 stop
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
$304American Airlines
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Fri, Jul 5 - Wed, Jul 10
1:00 pm - 6:30 pmBOS-STL
6h 30m1 stop
9:10 am - 5:38 pmSTL-BOS
7h 28m1 stop
$360Delta
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Fri, Aug 30 - Mon, Sep 2
10:00 am - 2:30 pmBOS-STL
5h 30m1 stop
7:01 pm - 1:03 amSTL-BOS
5h 02m1 stop
$378Delta
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Thu, Jul 4 - Mon, Jul 8
6:10 am - 2:23 pmBOS-STL
9h 13m1 stop
$75Spirit Airlines
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Tue, Jul 2
8:27 pm - 5:29 pmBOS-STL
22h 02m1 stop
$79Spirit Airlines
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Wed, Jul 17
9:16 am - 8:37 amBOS-STL
24h 21m1 stop
$90Frontier
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Wed, Jul 3
12:32 pm - 8:42 pmBOS-STL
9h 10m1 stop
$98Frontier
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Mon, Jul 15
9:16 am - 7:07 amBOS-STL
22h 51m1 stop
$102Frontier
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Mon, Jun 10
9:05 am - 4:47 pmBOS-STL
8h 42m1 stop
$164American Airlines
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Tue, Jul 16
11:29 am - 5:14 pmBOS-STL
6h 45m1 stop
$165American Airlines
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Wed, Nov 13
5:30 am - 3:40 pmBOS-STL
11h 10m2 stops
$207United Airlines
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Tue, Jul 2
5:45 am - 12:01 pmBOS-STL
7h 16m1 stop
$218Delta
Find Deal
Sun, Jun 9
7:00 am - 4:26 pmBOS-STL
34h 26m2 stops
$272United Airlines
Find Deal
Wed, Nov 13
9:16 am - 7:07 amBOS-STL
22h 51m1 stop
7:44 pm - 8:16 amSTL-BOS
11h 32m1 stop
$168Frontier
Find Deal
Wed, Jun 5 - Tue, Jun 11
9:16 am - 7:07 amBOS-STL
22h 51m1 stop
7:44 pm - 8:16 amSTL-BOS
11h 32m1 stop
$227Frontier
Find Deal
Wed, Jun 5 - Tue, Jun 11
6:30 am - 11:45 amBOS-STL
30h 15m2 stops
12:15 pm - 11:31 pmSTL-BOS
10h 16m2 stops
Sat, Jun 8 - Wed, Jun 12
6:10 am - 5:28 pmBOS-STL
12h 18m1 stop
6:55 pm - 11:17 amSTL-BOS
15h 22m1 stop
$310Spirit Airlines
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Sat, Jun 8 - Sun, Jun 9
8:11 pm - 5:28 pmBOS-STL
22h 17m2 stops
6:55 pm - 11:17 amSTL-BOS
15h 22m1 stop
$336Spirit Airlines
Find Deal
Fri, Jun 7 - Sun, Jun 9
9:10 am - 4:20 pmBOS-STL
8h 10m1 stop
11:25 am - 7:49 pmSTL-BOS
7h 24m1 stop
$436Delta
Find Deal
Sat, Jun 8 - Wed, Jun 12
8:45 am - 3:41 pmBOS-STL
7h 56m2 stops
10:15 am - 5:29 pmSTL-BOS
6h 14m1 stop
$441United Airlines
Find Deal
Wed, Jun 5 - Fri, Jun 7
12:17 pm - 5:18 pmBOS-STL
6h 01m1 stop
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
$451American Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 5
8:45 am - 3:41 pmBOS-STL
7h 56m2 stops
10:15 am - 4:24 pmSTL-BOS
5h 09m1 stop
$460United Airlines
Find Deal
Wed, Jun 5 - Thu, Jun 6
4:14 pm - 6:14 pmBOS-STL
3h 00mnonstop
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
$667American Airlines
Find Deal
Wed, Jun 5 - Tue, Jun 11
7:00 am - 9:07 amBOS-STL
3h 07mnonstop
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
$311American Airlines
Find Deal
Wed, Jul 3 - Wed, Jul 10
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
$326American Airlines
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Fri, Aug 30 - Sun, Sep 1
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
$331American Airlines
Find Deal
Sat, Aug 17 - Mon, Aug 19
7:00 am - 9:14 amBOS-STL
3h 14mnonstop
7:02 pm - 10:40 pmSTL-BOS
2h 38mnonstop
$341American Airlines
Find Deal
Fri, Aug 30 - Mon, Sep 2
4:14 pm - 6:21 pmBOS-STL
3h 07mnonstop
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
$346American Airlines
Find Deal
Wed, Jul 17 - Thu, Jul 18
7:00 am - 9:00 amBOS-STL
3h 00mnonstop
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
$355American Airlines
Find Deal
Tue, Sep 24 - Thu, Sep 26
7:00 am - 9:07 amBOS-STL
3h 07mnonstop
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
$356American Airlines
Find Deal
Thu, Jul 4 - Mon, Jul 8
4:14 pm - 6:14 pmBOS-STL
3h 00mnonstop
6:51 pm - 10:29 pmSTL-BOS
2h 38mnonstop
$361American Airlines
Find Deal
Tue, Jun 18 - Tue, Jul 9
7:00 am - 9:00 amBOS-STL
3h 00mnonstop
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
$362American Airlines
Find Deal
Thu, Sep 12 - Sun, Sep 15
7:00 am - 9:00 amBOS-STL
3h 00mnonstop
6:51 pm - 10:34 pmSTL-BOS
2h 43mnonstop
$364American Airlines
Find Deal
Thu, Sep 12 - Sun, Sep 15

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

Get data-powered insights and trends into flights from Boston to St. Louis 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 Boston to St. Louis?

The average price of all flights from Boston to St. Louis clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to St. Louis on a Tuesday and more expensive on a Monday. On your return trip to Boston, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to St. Louis, 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 Boston to St. Louis is February, where tickets cost $344 on average. On the other hand, the most expensive months are June and November, where the average cost of tickets is $511 and $497 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to St. Louis, 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 Boston to St. Louis, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 81 days before departure.

Which airlines provide the cheapest flights from Boston to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Boston to St. Louis were found on Frontier ($163) and Spirit Airlines ($187). Spirit Airlines proposed the cheapest one-way flight at $75.

Which airlines fly non-stop between Boston and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Boston to St. Louis.
There are 2 airlines that fly nonstop from Boston to St. Louis. They are American Airlines and Southwest. The cheapest airline for this route is American Airlines, with the best one-way deal found costing $282. On average, the best prices for this route can be found at American Airlines.

How many flights are there between Boston and St. Louis per day?

Each day, there are between 3 and 6 nonstop flights that take off from Boston and land in St. Louis, with an average flight time of 2h 59m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 35 flights. The most frequent day of departure is Wednesday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Boston and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Boston to St. Louis take?

A direct flight to St. Louis will take on average 3h 00m to travel the 1,043 miles flying distance from Boston.

What’s the earliest departure time from Boston to St. Louis?

Early birds can take the earliest flight from Boston at 6:50 am and will be landing in St. Louis at 8:45 am.

What’s the latest departure time from Boston to St. Louis?

If you prefer to fly at night, the latest flight from Boston to St. Louis jets off at 8:00 pm and lands at 10:00 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$75
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Boston to St. Louis

When to book flights from Boston to St. Louis

Are your dates flexible? Find out the best times to travel from Boston to St. Louis 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 Boston to St. Louis

  • Does STL provide facilities for nursing mothers?

    Yes. STL provides lactation suites for traveling mothers if they want some privacy while they breastfeed or if they need to pump. These lactation suites are outfitted with a comfortable chair, a table, a sink, a bench, a footrest, and an outlet that is appropriately placed for a breast pump. These clean, private suites can be found at Gates C9, E33, and A10.

  • Does BOS have a lounge for the US military?

    Yes. The USO at BOS proudly welcomes active-duty service members of the US military and their families. The lounge is located in Terminal C, before security, on the lower level, toward Terminal E. Amenities at this lounge include comfortable seating around a TV with DVDs and Xbox games, a kitchen area, internet access, computers, emergency personal-care kits, reference materials about Boston, and so much more. This USO is open from 8 am until 9 pm Monday thru Friday and from 8 am to 8 pm on Saturday and Sunday.

  • Does STL have a prayer room or chapel for passengers?

    STL provides travelers and staff alike with two interfaith chapels. The chapels provide prayer books, prayer rugs, and services that include empathetic listening, spiritual guidance, and religious services. Open and available 24/7, one chapel is located on the lower level of Terminal 1 and the other is at Gate E40.

  • How can I fly between BOS and STL?

    American Airlines, JetBlue, and Southwest are among the airlines that operate direct flights between BOS and STL. American Airlines and Delta are among the airlines that offer flights between BOS and STL that have one-stop. Layover cities include Philadelphia (PHL), Washington DC (DCA), and Charlotte (CLT). United Airlines is one of the carriers that operate flights between STL and BOS that have two stops. Layover cities include Newark (EWR) and Chicago (ORD).

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

    In the last 3 days, the lowest price for a flight from Boston to St. Louis was $75 for a one-way ticket and $163 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

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

    American Airlines, JetBlue, Delta, Alaska Airlines, and Aeromexico offer inflight Wi-Fi service on the Boston to St. Louis flight route.

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

    The Embraer 175 is the aircraft model that flies most regularly on the Boston to St. Louis flight route.

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

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

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

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

  • Which is the best airline for flights from Boston to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to St. Louis are Delta and United Airlines. With an average price for the route of $406 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $509 and an overall rating of 7.4.

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

    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 Boston to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Boston 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 Boston to St. Louis?

    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 St. Louis with an airline and back to Boston with another airline. Booking your flights between Boston and STL 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 Boston to St. Louis?

    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 St. Louis from Boston 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 Boston to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $158 or less one-way and $378 or less round-trip.
  • Air Choice One and Cape Air are the airlines for which the St. Louis Lambert International Airport (STL) serves as a hub. Delta Airlines is the airline for which Boston Logan International Airport (BOS) is a hub. Also, Boston is a focus city for JetBlue.
  • BOS provides animal relief stations for those traveling with a pet or service animal. If your four-legged friend or guide needs to go to the bathroom before your flight, there are animal relief stations in Terminal B at Gate B29, in Terminal C at Gate C20, and in Terminal E at Gate E7.
  • BOS strives to make its terminals and facilities as accessible as possible. Some of the airport’s accessibility adaptations include elevators and ramps in all the terminals, fire alarms that are audio and visual, accessible restrooms in every terminal, and the availability of guest passes that caregivers can use to help differently-abled people beyond the security checkpoint.
  • To get to BOS from downtown Boston, “Take the T.” This means to take the public transportation options offered by the MBTA. These include the Silver Line rapid transit buses, Blue Line subway, and the MTBA ferries.
  • On your way out of STL, consider passing through Terminal 1, where you can hear the live music of the Terminal 1 piano and piano player. Installed as a part of an arts and culture initiative, this ever-present musical performance is also meant to add delight and relaxation to your journey.
See more tips

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

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

Nonstop departures

Boston Logan Intl to Lambert-St Louis

Monday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Tuesday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Wednesday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Thursday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Friday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Saturday

Southwest, American Airlines, Qatar Airways

Southwest, American Airlines, +1 more

Sunday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

See more direct flights

Nonstop returns

Lambert-St Louis to Boston Logan Intl

Monday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Tuesday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Wednesday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Thursday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Friday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Saturday

Southwest, American Airlines, Iberia, +1 more

Southwest, American Airlines, +2 more

Sunday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

See more direct flights
See more direct flights

Top 5 airlines serving from Boston to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Boston to St. Louis. 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 Boston to St. Louis? 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.
8.0
DeltaOverall score based on 10402 reviews
8.0Entertainment
8.6Crew
7.4Food
8.2Boarding
7.9Comfort
Airline reviews

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

2.0 MediocreFelipe, Jun 2024DTW - SAN
Read more about Delta reviews

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

Overall fine but both ways for this trip was delayed.

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Equipment swap led to 2+ hour delay on international flight. And to top it off, boarding took forever.

Wretched scheduling - they got themselves into a critical crew situation and didn’t try to address it until 15 minutes before they had to cancel my flight

They cancelled two flight and got us onto another airline, which was also delayed.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight delayed, boarding time kept changing, not good. Nee firm information given each time.

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Book cheap flights from Boston to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to St. Louis found on KAYAK in the last 72 hours.
7/2Tue
1 stopSpirit Airlines
9h 13mBOS-STL
$75
7/17Wed
1 stopSpirit Airlines
22h 02mBOS-STL
$79
7/3Wed
1 stopFrontier
24h 21mBOS-STL
$90
7/15Mon
1 stopFrontier
9h 10mBOS-STL
$98
6/10Mon
1 stopFrontier
22h 51mBOS-STL
$102
7/16Tue
1 stopAmerican Airlines
8h 42mBOS-STL
$164
11/13Wed
1 stopAmerican Airlines
6h 45mBOS-STL
$165
7/2Tue
2 stopsUnited Airlines
11h 10mBOS-STL
$207
6/9Sun
1 stopDelta
7h 16mBOS-STL
$218
11/13Wed
2 stopsUnited Airlines
34h 26mBOS-STL
$272

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Last minute flights from Boston to St. Louis

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 Boston to St. Louis that are departing in the next 10 days.
6/5Wed
multi-stopFrontier
22h 51mBOS-STL
6/11Tue
multi-stopFrontier
11h 32mSTL-BOS
$168
6/5Wed
multi-stopFrontier
22h 51mBOS-STL
6/11Tue
multi-stopFrontier
11h 32mSTL-BOS
$227
6/8Sat
multi-stop
30h 15mBOS-STL
6/12Wed
multi-stop
10h 16mSTL-BOS
$269
6/8Sat
multi-stopSpirit Airlines
12h 18mBOS-STL
6/9Sun
multi-stopSpirit Airlines
15h 22mSTL-BOS
$310
6/7Fri
multi-stopSpirit Airlines
22h 17mBOS-STL
6/9Sun
multi-stopSpirit Airlines
15h 22mSTL-BOS
$336
6/8Sat
multi-stopDelta
8h 10mBOS-STL
6/12Wed
multi-stopDelta
7h 24mSTL-BOS
$436
6/5Wed
multi-stopUnited Airlines
7h 56mBOS-STL
6/7Fri
multi-stopUnited Airlines
6h 14mSTL-BOS
$441
6/5Wed
multi-stopAmerican Airlines
6h 01mBOS-STL
6/5Wed
nonstopAmerican Airlines
2h 43mSTL-BOS
$451
6/5Wed
multi-stopUnited Airlines
7h 56mBOS-STL
6/6Thu
multi-stopUnited Airlines
5h 09mSTL-BOS
$460
6/5Wed
nonstopAmerican Airlines
3h 00mBOS-STL
6/11Tue
nonstopAmerican Airlines
2h 43mSTL-BOS
$667

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Boston - St. Louis Flights

Departure:

Boston (BOS)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Boston

Cabin classes:

$921
$1,111
$1,420
$329