What airlines fly to Philadelphia?

United Airlines, Frontier and Delta are the top three most popular airlines that fly to Philadelphia from Denver according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Denver Intl to Philadelphia?

Southwest, American Airlines, and United Airlines are the most popular carriers operating from Denver Intl to Philadelphia

How many flights depart from Denver to Philadelphia on average per day?

The number of flights available between Denver and Philadelphia is 13 per day as of October 2026. The most frequent departure time is 12:00PM, with 55% of daily flights leaving in the afternoon.

How many flights depart from Denver to Philadelphia on average per week?

As of October 2026, there are 96 flights per week flying from Denver to Philadelphia. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.

When did momondo last update prices for flights from Denver Intl Airport to Philadelphia Airport?

Prices for flights from Denver Intl Airport to Philadelphia Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Denver Intl Airport to Philadelphia Airport?

There are 6 operators available for flights from Denver Intl Airport to Philadelphia Airport as of October 2026.

How old do you have to be to fly from Denver Intl Airport to Philadelphia Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$152 Cheap Flights from Denver to Philadelphia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Philadelphia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 11:05 pmDEN Denver Intl-PHL Philadelphia

12h 05m1 stop Atlanta Hartsfield-Jackson

6:40 pm - 6:29 amPHL Philadelphia-DEN Denver Intl

13h 49m1 stop Atlanta Hartsfield-Jackson

$277Frontier

Sun, Dec 13 - Tue, Dec 15

9:26 pm - 11:02 amDEN Denver Intl-PHL Philadelphia

11h 36m1 stop Dallas/Fort Worth

8:38 pm - 11:04 pmPHL Philadelphia-DEN Denver Intl

4h 26mnonstop

$278Frontier

Fri, Nov 20 - Mon, Nov 23

10:41 am - 5:51 pmDEN Denver Intl-PHL Philadelphia

29h 10m1 stop Tampa

6:15 am - 9:48 pmPHL Philadelphia-DEN Denver Intl

17h 33m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth

$285Multiple Airlines

Thu, Jan 14 - Sun, Jan 17

8:30 am - 3:07 pmDEN Denver Intl-PHL Philadelphia

28h 37m1 stop Knoxville McGhee Tyson

10:59 am - 8:22 amPHL Philadelphia-DEN Denver Intl

47h 23m2 stops Tampa Atlanta Hartsfield-Jackson

$285Multiple Airlines

Thu, Nov 12 - Sun, Nov 15

2:45 pm - 8:18 pmDEN Denver Intl-PHL Philadelphia

3h 33mnonstop

8:53 am - 11:24 amPHL Philadelphia-DEN Denver Intl

4h 31mnonstop

$321American Airlines

Fri, Dec 11 - Wed, Jan 6

12:08 pm - 5:40 pmDEN Denver Intl-PHL Philadelphia

3h 32mnonstop

11:47 am - 2:09 pmPHL Philadelphia-DEN Denver Intl

4h 22mnonstop

$321American Airlines

Fri, Nov 13 - Mon, Nov 16

6:10 pm - 11:41 pmDEN Denver Intl-PHL Philadelphia

3h 31mnonstop

9:55 am - 12:15 pmPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$321United Airlines

Sat, Dec 12 - Mon, Dec 14

6:08 pm - 11:39 pmDEN Denver Intl-PHL Philadelphia

3h 31mnonstop

3:35 pm - 5:55 pmPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$321United Airlines

Thu, Nov 5 - Wed, Nov 11

6:00 pm - 11:25 pmDEN Denver Intl-PHL Philadelphia

3h 25mnonstop

5:00 am - 7:15 amPHL Philadelphia-DEN Denver Intl

4h 15mnonstop

$321Southwest

Tue, Nov 3 - Thu, Nov 12

10:50 am - 4:15 pmDEN Denver Intl-PHL Philadelphia

3h 25mnonstop

5:15 pm - 7:25 pmPHL Philadelphia-DEN Denver Intl

4h 10mnonstop

$321Southwest

Tue, Nov 17 - Tue, Nov 17

Cheap last minute flights

Enter your travel dates to find the best prices.

7:37 pm - 1:16 amDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

5:50 am - 8:00 amPHL Philadelphia-DEN Denver Intl

4h 10mnonstop

$320Frontier

Sat, Oct 17 - Sat, Oct 24

7:37 pm - 1:16 amDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

5:22 pm - 12:20 pmPHL Philadelphia-DEN Denver Intl

20h 58m2 stops Atlanta Hartsfield-Jackson Houston George Bush Intcntl

$323Frontier

Tue, Oct 20 - Mon, Oct 26

7:37 pm - 1:16 amDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

6:43 pm - 8:24 amPHL Philadelphia-DEN Denver Intl

15h 41m1 stop Tampa St. Petersburg

$340Multiple Airlines

Tue, Oct 20 - Mon, Oct 26

2:54 pm - 8:33 pmDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

7:55 pm - 10:26 pmPHL Philadelphia-DEN Denver Intl

4h 31mnonstop

$499American Airlines

Tue, Oct 20 - Sat, Oct 24

6:30 am - 12:09 pmDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

6:20 pm - 8:45 pmPHL Philadelphia-DEN Denver Intl

4h 25mnonstop

$499American Airlines

Tue, Oct 20 - Tue, Oct 27

1:25 pm - 9:29 pmDEN Denver Intl-PHL Philadelphia

6h 04m1 stop Chicago O'Hare Intl

10:40 am - 2:30 pmPHL Philadelphia-DEN Denver Intl

5h 50m1 stop Washington, D.C. Dulles Intl

$519United Airlines

Sat, Oct 17 - Tue, Oct 20

7:00 am - 2:41 pmDEN Denver Intl-PHL Philadelphia

5h 41m1 stop Atlanta Hartsfield-Jackson

7:16 pm - 11:44 pmPHL Philadelphia-DEN Denver Intl

6h 28m1 stop Minneapolis St Paul

$519Delta

Tue, Oct 20 - Tue, Oct 20

12:59 am - 9:00 amDEN Denver Intl-PHL Philadelphia

6h 01m1 stop Detroit Metropolitan Wayne County

4:00 pm - 8:11 pmPHL Philadelphia-DEN Denver Intl

6h 11m1 stop Atlanta Hartsfield-Jackson

$519Delta

Fri, Oct 16 - Sat, Oct 17

5:37 pm - 11:20 pmDEN Denver Intl-PHL Philadelphia

3h 43mnonstop

8:00 am - 10:02 amPHL Philadelphia-DEN Denver Intl

4h 02mnonstop

$548United Airlines

Fri, Oct 16 - Sat, Oct 24

10:44 pm - 12:05 pmDEN Denver Intl-PHL Philadelphia

35h 21m2 stops Phoenix Sky Harbor Intl Des Moines

8:44 pm - 9:49 amPHL Philadelphia-DEN Denver Intl

15h 05m1 stop Las Vegas Harry Reid Intl

$552Multiple Airlines

Fri, Oct 16 - Sun, Oct 18

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Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets

Frontier

Dec 13

DEN9:00 amDenver Intl

12h 05m

1 stop

PHL11:05 pmPhiladelphia

Dec 15

PHL6:40 pmPhiladelphia

13h 49m

1 stop

DEN6:29 amDenver Intl

$277

Frontier

Nov 17

DEN10:41 amDenver Intl

10h 35m

1 stop

PHL11:16 pmPhiladelphia

Nov 20

PHL8:38 pmPhiladelphia

4h 26m

DEN11:04 pmDenver Intl

$278

Frontier

Nov 12

DEN7:09 pmDenver Intl

19h 34m

1 stop

PHL4:43 pmPhiladelphia

Nov 15

PHL9:09 pmPhiladelphia

13h 17m

1 stop

DEN8:26 amDenver Intl

$279

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sun 12/13

9:00 am-11:05 pm

1 stop12h 05m

Philadelphia

Tue 12/15

6:40 pm-6:29 am

1 stop13h 49m

$277

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 11/20

9:26 pm-11:02 am

1 stop11h 36m

Philadelphia

Mon 11/23

8:38 pm-11:04 pm

Nonstop4h 26m

$278

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 1/14

10:41 am-5:51 pm

1 stop29h 10m

Philadelphia

Sun 1/17

6:15 am-9:48 pm

2 stops17h 33m

$285

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 11/12

8:30 am-3:07 pm

1 stop28h 37m

Philadelphia

Sun 11/15

10:59 am-8:22 am

2 stops47h 23m

$285

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 12/11

2:45 pm-8:18 pm

Nonstop3h 33m

Philadelphia

Wed 1/6

8:53 am-11:24 am

Nonstop4h 31m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 11/13

12:08 pm-5:40 pm

Nonstop3h 32m

Philadelphia

Mon 11/16

11:47 am-2:09 pm

Nonstop4h 22m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sat 12/12

6:10 pm-11:41 pm

Nonstop3h 31m

Philadelphia

Mon 12/14

9:55 am-12:15 pm

Nonstop4h 20m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 11/5

6:08 pm-11:39 pm

Nonstop3h 31m

Philadelphia

Wed 11/11

3:35 pm-5:55 pm

Nonstop4h 20m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Tue 11/3

6:00 pm-11:25 pm

Nonstop3h 25m

Philadelphia

Thu 11/12

5:00 am-7:15 am

Nonstop4h 15m

$321

Quickest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Tue 11/17

10:50 am-4:15 pm

Nonstop3h 25m

Philadelphia

Tue 11/17

5:15 pm-7:25 pm

Nonstop4h 10m

$321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Denver and Philadelphia?

Prices are currently low for flights on this route.

Typical prices usually range from $297 to $516.
The lowest price recently found on this route was $277.

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Denver is in February. Flight prices, which tend to average around $268, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Philadelphia, with average flight prices from Denver averaging around $322.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Denver to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $401. On the other hand, Monday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $553.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Denver to Philadelphia in the evening for as low as $317. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $495.

What is the cheapest Denver Intl to Philadelphia flight route?

Fly from Denver Intl to Philadelphia for the best Denver Intl - Philadelphia flight prices

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

You are more likely to see cheaper flights to Philadelphia from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $377 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Denver for as low as $339 on momondo.

What cabin class options are available on Denver to Philadelphia flights?

There are 4 cabin classes available to choose from on Denver to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denver to Philadelphia flights?

You could potentially save up to 11% on your flight if you consider stops on a Denver to Philadelphia flight.

How have Denver to Philadelphia flight prices changed over time?

As of October 2026, prices for Denver to Philadelphia flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Denver to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Denver to Philadelphia (DEN to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Philadelphia

Best Price Found	$152
Fastest flight time	3h 20m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from Denver in the past 72 hours is $152. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $277.

The fastest flight from Denver to Philadelphia takes 3h 20m

Direct flights go from Denver to Philadelphia every day.

There is 1 airport in Philadelphia. From Denver there are direct flights to Philadelphia (PHL).

Search flight deals

Frequently asked questions about flying from Denver to Philadelphia

How far is Denver Intl to Philadelphia by plane?
Denver Intl and Philadelphia are 1574.0 mi apart from one another. Typically, this will take 3h 20m by plane in normal conditions.
When did momondo last update prices for flights from Denver Intl Airport to Philadelphia Airport?
Prices for flights from Denver Intl Airport to Philadelphia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Philadelphia Airport?
There are 6 operators available for flights from Denver Intl Airport to Philadelphia Airport as of October 2026.
How old do you have to be to fly from Denver Intl Airport to Philadelphia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Denver to Philadelphia?
momondo data reveals that the most frequently booked plane model on the route from Denver to Philadelphia is Boeing 737-800, representing 28.24% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.88%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.04%, and Boeing 737 at 8.80%.
What is the most popular airline from Denver to Philadelphia?
momondo data reveals that the most frequently booked airline on the route from Denver to Philadelphia is Frontier, representing 36% of all bookings. The subsequent popular airlines are American Airlines at 34%, United Airlines at 19%, and Southwest at 11%.

Best airlines flying from Denver to Philadelphia

Compare and see reviews for airlines that fly from Denver to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $123	Free Cancellation	Rating 5.5 2,539 reviews	Search Frontier flights
JetBlue	PriceFrom $164	Free Cancellation	Rating 7.1 3,052 reviews	Search JetBlue flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
American Airlines	PriceFrom $237	Free Cancellation	Rating 7.0 12,164 reviews	Search American Airlines flights
Southwest	PriceFrom $247	Free Cancellation	Rating 7.9 4,214 reviews	Search Southwest flights
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 10,362 reviews	Search United Airlines flights

Southwest Flights From Denver to Philadelphia
Southwest flight deals from Denver to Philadelphia start from $247 round-trip. Over the 9 Southwest flights for this route in a normal week, average airfare is usually $491 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Denver to Philadelphia
$248 is the best United Airlines flight deal from Denver to Philadelphia found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $537, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 10,361 user reviews) flies into Philadelphia from Denver 16 times in an average week so prices can vary.

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King of Prussia

Newark

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Dewey Beach

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North Wildwood

Vineland

Chester

Lewes

Avalon

Elkton

Pottstown

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Philadelphia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Philadelphia from Denver.

Can I find flights from Denver to Philadelphia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Denver to Philadelphia flights to just show those with flexible booking policies.

How can momondo help me find flights from Denver to Philadelphia?

Once you have performed a search for Denver to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Denver to Philadelphia right now. Can momondo alert me if prices change?

Price alerts on flights to Philadelphia from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.