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.

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

The number of flights available between Denver and Philadelphia is 12 per day as of October 2026. The most frequent departure time is 12:00PM, with 48% of daily flights leaving in the afternoon.

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

Delta, Frontier, and American Airlines are the most popular carriers operating from Denver Intl to Philadelphia

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

As of October 2026, there are 88 flights per week flying from Denver to Philadelphia. The most common day of the week flights depart is Sun, 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.

$158 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.

6:00 am - 11:40 pmDEN Denver Intl-PHL Philadelphia

15h 40m2 stops Cleveland Hopkins Intl Atlanta Hartsfield-Jackson

6:31 pm - 6:29 amPHL Philadelphia-DEN Denver Intl

13h 58m1 stop Atlanta Hartsfield-Jackson

$274Frontier

Thu, Dec 10 - Sat, Dec 12

7:50 pm - 6:01 amDEN Denver Intl-PHL Philadelphia

8h 11m1 stop Las Vegas Harry Reid Intl

9:55 pm - 11:39 amPHL Philadelphia-DEN Denver Intl

15h 44m1 stop Las Vegas Harry Reid Intl

$274Frontier

Fri, Nov 20 - Mon, Nov 30

2:57 pm - 8:29 pmDEN Denver Intl-PHL Philadelphia

3h 32mnonstop

9:22 am - 5:20 pmPHL Philadelphia-DEN Denver Intl

9h 58m1 stop Chicago O'Hare Intl

$275American Airlines

Wed, Nov 11 - Sat, Nov 14

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

3h 32mnonstop

3:35 pm - 12:30 amPHL Philadelphia-DEN Denver Intl

10h 55m1 stop Chicago O'Hare Intl

$275American Airlines

Wed, Dec 9 - Sat, Dec 12

11:59 pm - 9:49 amDEN Denver Intl-PHL Philadelphia

7h 50m1 stop Washington, D.C. Dulles Intl

7:45 am - 10:05 amPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$275United Airlines

Sun, Nov 15 - Sun, Nov 22

5:50 am - 1:10 pmDEN Denver Intl-PHL Philadelphia

5h 20m1 stop Nashville Intl

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

4h 15mnonstop

$275Southwest

Sun, Dec 6 - Sun, Dec 13

6:45 am - 1:45 pmDEN Denver Intl-PHL Philadelphia

5h 00m1 stop Lambert-St Louis

5:10 am - 7:30 amPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$277Southwest

Sat, Dec 12 - Wed, Jan 6

4:14 pm - 11:40 pmDEN Denver Intl-PHL Philadelphia

5h 26m1 stop Minneapolis St Paul

9:43 am - 3:15 pmPHL Philadelphia-DEN Denver Intl

7h 32m1 stop Detroit Metropolitan Wayne County

$278Delta

Sat, Nov 21 - Tue, Dec 1

12:57 am - 10:59 amDEN Denver Intl-PHL Philadelphia

8h 02m1 stop Atlanta Hartsfield-Jackson

6:05 am - 10:05 amPHL Philadelphia-DEN Denver Intl

6h 00m1 stop Minneapolis St Paul

$279Delta

Thu, Dec 17 - Tue, Dec 22

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

3h 31mnonstop

7:45 am - 10:05 amPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$281United Airlines

Mon, Nov 16 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

6:56 pm - 11:54 pmDEN Denver Intl-PHL Philadelphia

26h 58m1 stop Miami

3:22 pm - 8:13 amPHL Philadelphia-DEN Denver Intl

18h 51m1 stop Orlando

$344Frontier

Tue, Oct 27 - Sat, Nov 7

10:40 am - 12:07 amDEN Denver Intl-PHL Philadelphia

11h 27m1 stop Orlando

4:47 pm - 8:29 amPHL Philadelphia-DEN Denver Intl

17h 42m1 stop Miami

$348Frontier

Tue, Oct 27 - Sat, Nov 7

8:26 am - 2:47 pmDEN Denver Intl-PHL Philadelphia

28h 21m1 stop Knoxville McGhee Tyson

6:00 am - 3:53 pmPHL Philadelphia-DEN Denver Intl

11h 53m1 stop Dallas/Fort Worth

$405Multiple Airlines

Thu, Oct 29 - Wed, Nov 4

8:26 am - 2:47 pmDEN Denver Intl-PHL Philadelphia

28h 21m1 stop Knoxville McGhee Tyson

6:00 am - 12:08 pmPHL Philadelphia-DEN Denver Intl

8h 08m1 stop Dallas/Fort Worth

$424Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

8:30 am - 2:09 pmDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

8:57 am - 11:22 amPHL Philadelphia-DEN Denver Intl

4h 25mnonstop

$519American Airlines

Wed, Oct 28 - Sat, Oct 31

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

3h 39mnonstop

11:41 am - 2:06 pmPHL Philadelphia-DEN Denver Intl

4h 25mnonstop

$519American Airlines

Wed, Oct 28 - Tue, Nov 3

10:10 am - 3:46 pmDEN Denver Intl-PHL Philadelphia

3h 36mnonstop

10:00 am - 12:20 pmPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$519United Airlines

Wed, Oct 28 - Tue, Nov 3

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

3h 31mnonstop

10:00 am - 12:20 pmPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$519United Airlines

Wed, Oct 28 - Sat, Oct 31

6:00 pm - 11:35 pmDEN Denver Intl-PHL Philadelphia

3h 35mnonstop

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

4h 10mnonstop

$519Southwest

Tue, Oct 27 - Tue, Nov 3

6:00 pm - 11:35 pmDEN Denver Intl-PHL Philadelphia

3h 35mnonstop

5:00 am - 7:20 amPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$519Southwest

Wed, Oct 28 - Wed, Nov 4

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Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets

Frontier

Nov 22

DEN9:26 pmDenver Intl

11h 36m

1 stop

PHL11:02 amPhiladelphia

Nov 26

PHL9:55 pmPhiladelphia

13h 48m

1 stop

DEN9:43 amDenver Intl

$269

Frontier

Jan 11

DEN11:30 pmDenver Intl

9h 56m

1 stop

PHL11:26 amPhiladelphia

Jan 17

PHL6:15 amPhiladelphia

17h 10m

1 stop

DEN9:25 pmDenver Intl

$270

Frontier

Nov 15

DEN8:55 pmDenver Intl

21h 09m

1 stop

PHL8:04 pmPhiladelphia

Nov 17

PHL5:14 pmPhiladelphia

24h 39m

2 stops

DEN3:53 pmDenver Intl

$271

Southwest flights from Denver to Philadelphia

Our best Southwest deals on Denver to Philadelphia flight tickets

Southwest

Dec 4

DEN2:10 pmDenver Intl

5h 15m

1 stop

PHL9:25 pmPhiladelphia

Dec 7

PHL5:00 amPhiladelphia

4h 20m

DEN7:20 amDenver Intl

$273

Southwest

Dec 4

DEN6:00 pmDenver Intl

3h 30m

PHL11:30 pmPhiladelphia

Dec 6

PHL5:00 amPhiladelphia

4h 15m

DEN7:15 amDenver Intl

$310

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 12/10

6:00 am-11:40 pm

2 stops15h 40m

Philadelphia

Sat 12/12

6:31 pm-6:29 am

1 stop13h 58m

$274

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 11/20

7:50 pm-6:01 am

1 stop8h 11m

Philadelphia

Mon 11/30

9:55 pm-11:39 am

1 stop15h 44m

$274

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Wed 11/11

2:57 pm-8:29 pm

Nonstop3h 32m

Philadelphia

Sat 11/14

9:22 am-5:20 pm

1 stop9h 58m

$275

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Wed 12/9

12:08 pm-5:40 pm

Nonstop3h 32m

Philadelphia

Sat 12/12

3:35 pm-12:30 am

1 stop10h 55m

$275

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sun 11/15

11:59 pm-9:49 am

1 stop7h 50m

Philadelphia

Sun 11/22

7:45 am-10:05 am

Nonstop4h 20m

$275

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sun 12/6

5:50 am-1:10 pm

1 stop5h 20m

Philadelphia

Sun 12/13

5:00 am-7:15 am

Nonstop4h 15m

$275

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sat 12/12

6:45 am-1:45 pm

1 stop5h 00m

Philadelphia

Wed 1/6

5:10 am-7:30 am

Nonstop4h 20m

$277

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sat 11/21

4:14 pm-11:40 pm

1 stop5h 26m

Philadelphia

Tue 12/1

9:43 am-3:15 pm

1 stop7h 32m

$278

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 12/17

12:57 am-10:59 am

1 stop8h 02m

Philadelphia

Tue 12/22

6:05 am-10:05 am

1 stop6h 00m

$279

Quickest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Mon 11/16

6:08 pm-11:39 pm

Nonstop3h 31m

Philadelphia

Wed 11/18

7:45 am-10:05 am

Nonstop4h 20m

$281

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 $326 to $531.
The lowest price recently found on this route was $269.

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 $267, 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 $568.

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 $322. 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 $504.

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 $381 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 $342 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.

How have Denver to Philadelphia flight prices changed over time?

As of October 2026, prices for Denver to Philadelphia flights are approximately 23% 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	$158
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 $158. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $274.

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 29.03% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 23.26%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.05%, and Boeing 737 at 8.26%.
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 35% 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 $122	Free Cancellation	Rating 5.5 2,515 reviews	Search Frontier flights
JetBlue	PriceFrom $164	Free Cancellation	Rating 7.1 3,066 reviews	Search JetBlue flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.8 8,676 reviews	Search Delta flights
American Airlines	PriceFrom $238	Free Cancellation	Rating 7.0 12,187 reviews	Search American Airlines flights
Southwest	PriceFrom $249	Free Cancellation	Rating 7.9 4,220 reviews	Search Southwest flights
United Airlines	PriceFrom $269	Free Cancellation	Rating 7.3 10,440 reviews	Search United Airlines flights

Southwest Flights From Denver to Philadelphia
Southwest flight deals from Denver to Philadelphia start from $249 round-trip. Over the 12 Southwest flights for this route in a normal week, average airfare is usually $490 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Denver to Philadelphia
$269 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 $543, however, with flight time and availability significantly affecting the price. United Airlines (7.3/10 from 10,440 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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New Castle

North Wildwood

Vineland

Chester

Lewes

Pottstown

Avalon

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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.