DEN - PHL

$24 Find Cheap Flights from Denver 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 Denver to Philadelphia departing on 4/2. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver 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 Denver to Philadelphia, as well as popular online travel agencies
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Cheap Flight Deals from Denver to Philadelphia (DEN-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Philadelphia that are departing in the next months. 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 Denver to Philadelphia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Denver to Philadelphia.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:50 pm - 5:15 amDEN-PHL
3h 25mnonstop
6:45 am - 9:16 amPHL-DEN
4h 31mnonstop
$53Frontier
Find Deal
Wed, Mar 12 - Tue, Mar 18
11:59 pm - 5:24 amDEN-PHL
3h 25mnonstop
6:45 am - 9:16 amPHL-DEN
4h 31mnonstop
$61Frontier
Find Deal
Tue, Mar 11 - Tue, Mar 18
11:59 pm - 5:24 amDEN-PHL
3h 25mnonstop
5:13 pm - 12:35 amPHL-DEN
9h 22m1 stop
$80Frontier
Find Deal
Tue, Mar 11 - Tue, Mar 18
11:50 pm - 5:15 amDEN-PHL
3h 25mnonstop
5:13 pm - 12:35 amPHL-DEN
9h 22m1 stop
$82Frontier
Find Deal
Wed, Mar 12 - Tue, Mar 18
7:00 am - 6:14 amDEN-PHL
21h 14m1 stop
6:50 am - 6:47 pmPHL-DEN
13h 57m1 stop
Thu, Mar 6 - Sun, Mar 9
12:28 am - 3:11 pmDEN-PHL
12h 43m1 stop
6:50 am - 6:47 pmPHL-DEN
13h 57m1 stop
Wed, Mar 5 - Sun, Mar 9
12:17 pm - 5:55 pmDEN-PHL
3h 38mnonstop
7:10 pm - 9:50 pmPHL-DEN
4h 40mnonstop
$255American Airlines
Find Deal
Wed, Feb 19 - Sat, Feb 22
7:25 pm - 12:50 amDEN-PHL
3h 25mnonstop
6:40 am - 9:10 amPHL-DEN
4h 30mnonstop
$257Southwest
Find Deal
Fri, Feb 28 - Sun, Mar 2
12:32 pm - 10:13 pmDEN-PHL
7h 41m1 stop
10:45 am - 1:21 pmPHL-DEN
4h 36mnonstop
$265American Airlines
Find Deal
Fri, Feb 28 - Tue, Mar 4
10:33 pm - 7:38 amDEN-PHL
7h 05m1 stop
3:55 pm - 9:38 pmPHL-DEN
7h 43m1 stop
$268JetBlue
Find Deal
Mon, Apr 7 - Fri, Apr 11

Flights from Denver to Philadelphia - Travel Insights & Trends

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

Planning a trip from Denver to Philadelphia? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Denver to Philadelphia?

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

What is the cheapest month to fly from Denver to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver 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 Denver to Philadelphia is May, where tickets cost $237 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $376 and $351 respectively.

Can I save money by flying with a layover from Denver to Philadelphia?

The average round-trip 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 $725 on average.

How far in advance should I book a flight from Denver to Philadelphia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Denver to Philadelphia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$24
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Denver to Philadelphia

When to book flights from Denver to Philadelphia

Are your dates flexible? Find out the best times to travel from Denver 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.

Flights from Denver to Philadelphia: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Denver to Philadelphia 
PaulFlew with American AirlinesDEN-PHLJan 2025
Contour airlines was great for a connection through Philadelphia. I had a tight connection and thought I might not make it, but I called and was able to talk with an actual person. They called ahead to the gate, and the plane held the door open a few minutes for me. Great service, and a very comfortable flight.
Verified travelerFlew with FrontierDEN-PHLMay 2024
Don’t fly frontier. The staff at the airport is rude, be careful.

FAQs for booking flights from Denver to Philadelphia

  • Where can I sleep at Philadelphia International Airport?

    The Philadelphia Airport Marriott is an airport hotel at PHL. To get to this establishment, you can take the free shuttle that departs every 20min from the terminals or the Skybride from Terminal B. The other option is Minute Suites, ideal if you only need a place to sleep. This establishment is located at the Terminal A-B Link, Airside. They offer day rooms and workstation cubicles where you can nap, work, or relax. Each suite features a daybed sofa, HD TV, Wi-Fi, power outlet, sound masking system, desk, and phone.

  • Does Philadelphia International Airport offer accessible services?

    Elevators and ramps are provided for barrier-free access to passengers in wheelchairs. There are also reserved parking spots, accessible restrooms, and accessible water fountains for passengers with limited mobility. The airport also works with Aira to provide safe passage for passengers with low vision. These passengers also get tactile guide paths and braille signage around the airport. TTY and courtesy telephones are also available for the hearing impaired to request assistance.

  • What are transport options from Philadelphia International Airport?

    You can easily connect to downtown Philadelphia using the SEPTA (Southeastern Pennsylvania Transportation Authority) trains. You can use this connection to get downtown and Amtrack connections, and you’ll find the PHL train platforms at Terminals A-East, B, C, D, and E baggage claim. PHL is also served by the SEPTA bus route, with buses headed from the airport to South Philadelphia and Chester, 69th Street Transportation Center, and Suburban Square in Ardmore. Taxis are also an option at the rank outside the terminals, and car rental companies have their desks in the ground transportation area.

  • What family services are offered at Philadelphia International Airport?

    Passengers traveling with children will have access to the Mamava Suites, which have fold-down desks, power outlets, comfortable seating, and are lockable from inside. For nursing mothers using the sleep pods, they will get 30min free. The airport has also provided several companion care and family restrooms around the airport. The airport also has a kids’ play area at Terminal A-East for those traveling with the older kids. The “Ready For Take-Off” children’s play area features climbing structures, toys, and everything your kid needs to have fun.

  • What is the cheapest flight from Denver to Philadelphia?

    In the last 3 days, the lowest price for a flight from Denver to Philadelphia was $24 for a one-way ticket and $53 for a round-trip.

  • Do I need a passport to fly between Denver and Philadelphia?

    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 Denver to Philadelphia?

    When flying out of Denver you will be using Denver Intl. You will be landing at Philadelphia, also known as Philadelphia.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Philadelphia?

    American Airlines, JetBlue, Delta, and Air France offer inflight Wi-Fi service on the Denver to Philadelphia flight route.

  • Which aircraft models fly most regularly from Denver to Philadelphia?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Denver to Philadelphia flight route.

  • Which airline alliances offer flights from Denver to Philadelphia?

    oneworld, and Star Alliance are the airline alliances operating flights between Denver and Philadelphia, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Denver to Philadelphia?

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Philadelphia are Southwest and Delta. With an average price for the route of $309 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 $347 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Denver 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 Denver to Philadelphia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Denver 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 Denver 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 Denver with another airline. Booking your flights between Denver 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 Denver 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 Denver 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 Denver to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $167 or less one-way and $277 or less round-trip.
  • Denver International Airport (DEN) is a large airport with one main terminal (Jeppesen Terminal) and three concourses. The airport is big, and for easy movement within the airport complex, DEN has a free shuttle service and an underground train that connects the main terminal to the three concourses.
  • Pets are welcome to travel through DEN. The airport has provided pet relief areas at Gates A, B, and C and an outdoor area outside Door 200, Jeppesen Terminal.
  • Around 850 kg of carbon is emitted per passenger on flights from Denver to Philadelphia. However, flying with American Airlines, Frontier Airlines, and United Airlines significantly reduces this, as these airlines emit 59%, 56%, and 47% less carbon per passenger, respectively.
  • Fly with American Airlines, United Airlines, or Delta for a chance to relax at their premium lounges at DEN before your flight. These airlines operate premium lounges at DEN, requiring your flight ticket and a pre-purchased pass for admittance.
  • If you have some time after your flight to Philadelphia International Airport (PHL), check out the art exhibits around the airport or view planes landing and taking off from the observation decks in each terminal. XpresSpa at PHL also offers manicures, pedicures, massages, and facials, and you’ll find them at Terminals C, D, and F.
See more tips

Prefer to fly direct from Denver to Philadelphia?

Find which airlines fly direct from Denver Intl Airport to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Philadelphia

Monday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Thursday

Air Canada, American Airlines, British Airways, +5 more

Air Canada, American Airlines, +6 more

Friday

Air Canada, American Airlines, British Airways, +5 more

Air Canada, American Airlines, +6 more

Saturday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Sunday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

See more direct flights

Direct returns

Philadelphia to Denver Intl

Monday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Thursday

Air Canada, American Airlines, British Airways, +5 more

Air Canada, American Airlines, +6 more

Friday

Air Canada, American Airlines, British Airways, +5 more

Air Canada, American Airlines, +6 more

Saturday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Sunday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

See more direct flights
See more direct flights

Top 5 airlines serving from Denver to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Denver 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 Denver 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 4587 reviews
7.1Food
7.7Entertainment
8.1Comfort
8.2Boarding
8.7Crew
Airline reviews

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

10.0 ExcellentAnonymous, Jan 2025ATL - LGA
Read more Southwest reviews

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.

Wi Fi was horrible kept cutting out the whole time and too expensive

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

Boarding was a little late, but made up for it. It was quick to taxi to the runway, since it's a smallish airport.

Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

It was 2 hours 45 minutes late, for no apparently clear reason.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

Plane still had screens for watching movies. Good selection too.

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

Good even though flight was delayed, the crew was prompt and efficient.

No access to the Wi-Fi, noisy group of people made it difficult for me to hear through my earbuds. Snacks and drinks - limited service when your seat is at the back of the plane - people up front are always served first and the back gets whatever is left. Not pleased.

In this flight we had selected seating for our family in the middle of the plane in a 2x2 format. The airline changed them to the very back row of the plane and split them to 3x1. Why pay for seats that allow seat selection if the airline will just move them to the worst seats in the plane?

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

Overall flight was as expected. It would have been better with a couple options for snack instead of only one item and if there was a TV or music as option. But overall satisfied.

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

The seats were extremely hard and uncomfortable, even for a budget airline.

Boarding was very well executed. Got my bag right away.

Overall experience good. There was no food and seats were not terribly comfortable.

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

There were a lot of issues every step of the process. Check in, security, boarding, and dealing with luggage. Plus the money you think you are saving you end up using in hidden fees.

The flight attendant was arguing with a passenger before takeoff. The passenger was frustrated but the flight attendant should have handled it with grace, but instead she was nasty and rude. The seats were comfortable and the flight was uneventful. I wish we didn’t have to pay for drinks or snacks but that’s what you get with a budget airline.

Booked two aisle seats and were switched to an aisle and middle. Not happy.

I fly Frontier often and generally don't have any issues. For some reason, the Denver to Houston's George Bush Intercontinental (IAH) flight always needs to wait on the tarmac in Houston because a gate is not available after landing. I've been stuck for as little as 15 minutes and as much as a little over an hour. I know only fly the Frontier Denver to IAH route when there is not an available flight to Houston Hobby (HOU).

No knowledgeable staff at the counter or in a flight crew. No one knew why once flight landed at Philadelphia Airport then it took them 4 hours from runway to gate . Damn they took 4 hours to reach the gate . They messed up whole night for myself and for my kids.

Horrible communication about delay of flight and what options were available

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