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 47% 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 18 per day as of August 2026. The most frequent departure time is 12:00PM, with 44% of daily flights leaving at noon.

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

Frontier is the most popular carrier operating from Denver Intl to Philadelphia

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

As of August 2026, there are 131 flights per week flying from Denver to Philadelphia. The most common day of the week flights depart is Mon, with 17% 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 August 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.

$120 Cheap Flights from Denver to Philadelphia in 2026

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.

8:59 pm - 11:11 pmDEN Denver Intl-PHL Philadelphia

24h 12m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson

5:28 pm - 10:01 amPHL Philadelphia-DEN Denver Intl

18h 33m1 stop Atlanta Hartsfield-Jackson

$223Frontier

Fri, Oct 30 - Tue, Nov 3

6:30 am - 11:43 pmDEN Denver Intl-PHL Philadelphia

15h 13m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson

12:35 pm - 10:01 amPHL Philadelphia-DEN Denver Intl

23h 26m1 stop Atlanta Hartsfield-Jackson

$223Frontier

Thu, Oct 22 - Mon, Oct 26

7:10 pm - 7:16 amDEN Denver Intl-PHL Philadelphia

10h 06m1 stop Atlanta Hartsfield-Jackson

6:10 pm - 9:29 pmPHL Philadelphia-DEN Denver Intl

29h 19m1 stop Des Moines

$225Multiple Airlines

Thu, Sep 24 - Sun, Sep 27

10:56 am - 11:11 pmDEN Denver Intl-PHL Philadelphia

10h 15m1 stop Atlanta Hartsfield-Jackson

12:12 pm - 3:56 pmPHL Philadelphia-DEN Denver Intl

29h 44m1 stop Des Moines

$229Multiple Airlines

Wed, Oct 28 - Sun, Nov 1

5:20 pm - 10:55 pmDEN Denver Intl-PHL Philadelphia

3h 35mnonstop

5:25 am - 7:15 amPHL Philadelphia-DEN Denver Intl

3h 50mnonstop

$244Southwest

Sat, Sep 12 - Mon, Sep 21

6:00 am - 2:40 pmDEN Denver Intl-PHL Philadelphia

6h 40m1 stop Chicago Midway

5:25 am - 7:15 amPHL Philadelphia-DEN Denver Intl

3h 50mnonstop

$254Southwest

Sat, Sep 12 - Mon, Sep 21

10:31 am - 4:19 pmDEN Denver Intl-PHL Philadelphia

3h 48mnonstop

12:39 pm - 8:35 pmPHL Philadelphia-DEN Denver Intl

9h 56m1 stop Chicago O'Hare Intl

$280American Airlines

Tue, Sep 15 - Tue, Sep 22

6:00 am - 2:28 pmDEN Denver Intl-PHL Philadelphia

6h 28m1 stop Atlanta Hartsfield-Jackson

6:15 am - 12:11 pmPHL Philadelphia-DEN Denver Intl

7h 56m1 stop Minneapolis St Paul

$291Delta

Thu, Nov 26 - Tue, Dec 1

10:31 am - 4:19 pmDEN Denver Intl-PHL Philadelphia

3h 48mnonstop

5:35 pm - 7:46 pmPHL Philadelphia-DEN Denver Intl

4h 11mnonstop

$308American Airlines

Fri, Sep 25 - Mon, Sep 28

6:00 am - 2:28 pmDEN Denver Intl-PHL Philadelphia

6h 28m1 stop Atlanta Hartsfield-Jackson

6:15 am - 12:11 pmPHL Philadelphia-DEN Denver Intl

7h 56m1 stop Minneapolis St Paul

$328Delta

Fri, Nov 27 - Tue, Dec 1

Cheap last minute flights

Enter your travel dates to find the best prices.

11:59 pm - 5:39 amDEN Denver Intl-PHL Philadelphia

3h 40mnonstop

8:37 pm - 11:04 pmPHL Philadelphia-DEN Denver Intl

4h 27mnonstop

$253Frontier

Thu, Aug 20 - Tue, Sep 1

6:59 pm - 3:29 pmDEN Denver Intl-PHL Philadelphia

18h 30m1 stop Detroit Metropolitan Wayne County

8:37 pm - 11:04 pmPHL Philadelphia-DEN Denver Intl

4h 27mnonstop

$259Frontier

Thu, Aug 20 - Tue, Sep 1

11:59 pm - 5:39 amDEN Denver Intl-PHL Philadelphia

3h 40mnonstop

6:07 pm - 3:48 amPHL Philadelphia-DEN Denver Intl

11h 41m2 stops Des Moines Las Vegas Harry Reid Intl

$318Multiple Airlines

Sat, Aug 22 - Sun, Aug 30

9:00 am - 3:45 pmDEN Denver Intl-PHL Philadelphia

28h 45m1 stop Knoxville McGhee Tyson

8:37 pm - 11:04 pmPHL Philadelphia-DEN Denver Intl

4h 27mnonstop

$341Multiple Airlines

Thu, Aug 20 - Sat, Aug 22

5:20 pm - 10:50 pmDEN Denver Intl-PHL Philadelphia

3h 30mnonstop

2:10 pm - 4:05 pmPHL Philadelphia-DEN Denver Intl

3h 55mnonstop

$485Southwest

Sat, Aug 22 - Sat, Aug 29

6:35 am - 4:00 pmDEN Denver Intl-PHL Philadelphia

7h 25m2 stops Lambert-St Louis Chicago Midway

1:45 pm - 7:45 pmPHL Philadelphia-DEN Denver Intl

8h 00m2 stops Chicago Midway Lambert-St Louis

$489Southwest

Wed, Aug 19 - Tue, Aug 25

10:50 am - 7:58 pmDEN Denver Intl-PHL Philadelphia

7h 08m1 stop Atlanta Hartsfield-Jackson

12:10 pm - 5:57 pmPHL Philadelphia-DEN Denver Intl

7h 47m1 stop Atlanta Hartsfield-Jackson

$505Delta

Sat, Aug 22 - Fri, Aug 28

8:00 am - 1:43 pmDEN Denver Intl-PHL Philadelphia

3h 43mnonstop

12:07 pm - 2:18 pmPHL Philadelphia-DEN Denver Intl

4h 11mnonstop

$508American Airlines

Wed, Aug 19 - Mon, Aug 24

8:00 am - 1:43 pmDEN Denver Intl-PHL Philadelphia

3h 43mnonstop

8:10 pm - 10:43 pmPHL Philadelphia-DEN Denver Intl

4h 33mnonstop

$508American Airlines

Wed, Aug 19 - Sun, Aug 23

12:59 am - 8:48 amDEN Denver Intl-PHL Philadelphia

5h 49m1 stop Detroit Metropolitan Wayne County

10:43 am - 2:52 pmPHL Philadelphia-DEN Denver Intl

6h 09m1 stop Atlanta Hartsfield-Jackson

$554Delta

Thu, Aug 20 - Fri, Aug 28

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Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets

Frontier

Oct 22

DEN6:30 amDenver Intl

15h 13m

2 stops

PHL11:43 pmPhiladelphia

Oct 26

PHL12:35 pmPhiladelphia

23h 26m

1 stop

DEN10:01 amDenver Intl

$223

Frontier

Oct 8

DEN8:55 pmDenver Intl

21h 09m

1 stop

PHL8:04 pmPhiladelphia

Oct 13

PHL12:35 pmPhiladelphia

10h 56m

1 stop

DEN9:31 pmDenver Intl

$225

Frontier

Oct 9

DEN7:37 pmDenver Intl

3h 39m

PHL1:16 amPhiladelphia

Oct 13

PHL5:50 amPhiladelphia

4h 10m

DEN8:00 amDenver Intl

$226

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 10/30

8:59 pm-11:11 pm

2 stops24h 12m

Philadelphia

Tue 11/3

5:28 pm-10:01 am

1 stop18h 33m

$223

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 10/22

6:30 am-11:43 pm

2 stops15h 13m

Philadelphia

Mon 10/26

12:35 pm-10:01 am

1 stop23h 26m

$223

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 9/24

7:10 pm-7:16 am

1 stop10h 06m

Philadelphia

Sun 9/27

6:10 pm-9:29 pm

1 stop29h 19m

$225

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Wed 10/28

10:56 am-11:11 pm

1 stop10h 15m

Philadelphia

Sun 11/1

12:12 pm-3:56 pm

1 stop29h 44m

$229

Quickest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sat 9/12

5:20 pm-10:55 pm

Nonstop3h 35m

Philadelphia

Mon 9/21

5:25 am-7:15 am

Nonstop3h 50m

$244

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sat 9/12

6:00 am-2:40 pm

1 stop6h 40m

Philadelphia

Mon 9/21

5:25 am-7:15 am

Nonstop3h 50m

$254

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Tue 9/15

10:31 am-4:19 pm

Nonstop3h 48m

Philadelphia

Tue 9/22

12:39 pm-8:35 pm

1 stop9h 56m

$280

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 11/26

6:00 am-2:28 pm

1 stop6h 28m

Philadelphia

Tue 12/1

6:15 am-12:11 pm

1 stop7h 56m

$291

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 9/25

10:31 am-4:19 pm

Nonstop3h 48m

Philadelphia

Mon 9/28

5:35 pm-7:46 pm

Nonstop4h 11m

$308

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 11/27

6:00 am-2:28 pm

1 stop6h 28m

Philadelphia

Tue 12/1

6:15 am-12:11 pm

1 stop7h 56m

$328

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 $251 to $469.
The lowest price recently found on this route was $223.

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 $271, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Philadelphia, with average flight prices from Denver averaging around $314.

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

The cheapest day to depart from Denver to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $388. 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 $292. 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 at noon when prices are around $473.

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 $360 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 $325 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 August 2026, prices for Denver to Philadelphia flights are approximately 7% more expensive 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	$131
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 $131. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $223.

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 August 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 27.13% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.46%, Boeing 737-800 Passenger/BBJ2 (winglets) at 10.34%, and Airbus A320neo at 10.24%.
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 37% of all bookings. The subsequent popular airlines are American Airlines at 32%, United Airlines at 18%, 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 $118	Free Cancellation	Rating 5.6 2,667 reviews	Search Frontier flights
JetBlue	PriceFrom $122	Free Cancellation	Rating 7.1 3,034 reviews	Search JetBlue flights
Delta	PriceFrom $128	Free Cancellation	Rating 7.8 8,499 reviews	Search Delta flights
United Airlines	PriceFrom $207	Free Cancellation	Rating 7.4 10,102 reviews	Search United Airlines flights
American Airlines	PriceFrom $220	Free Cancellation	Rating 7.1 11,957 reviews	Search American Airlines flights
Southwest	PriceFrom $236	Free Cancellation	Rating 8.0 4,219 reviews	Search Southwest flights

Southwest Flights From Denver to Philadelphia
Southwest flight deals from Denver to Philadelphia start from $236 round-trip. Over the 15 Southwest flights for this route in a normal week, average airfare is usually $470 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Denver to Philadelphia
$207 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 $511, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 10,104 user reviews) flies into Philadelphia from Denver 20 times in an average week so prices can vary.

Wildwood

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Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

North Wildwood

New Castle

Chester

Vineland

Avalon

Lewes

Stone Harbor

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.