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

United Airlines and JetBlue 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 February 2026, there are 49 flights per week flying from Denver to Philadelphia. The most common day of the week flights depart is Thu, with 24% of flights taking off on this day.

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

The number of flights available between Denver and Philadelphia is 7 per day as of February 2026. The most frequent departure time is 6:00AM, with 69% of daily flights leaving at noon.

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 38% 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.

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 February 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.

$105 Cheap Flights from Denver to Philadelphia in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:59 am - 10:27 am

DEN

PHL

7h 28m

1 stop

8:33 pm - 11:12 pm

PHL

DEN

4h 39mnonstop

$146Frontier

Mon, Mar 2 - Mon, Mar 9

12:25 pm - 5:55 pm

DEN

PHL

3h 30mnonstop

11:40 am - 9:41 pm

PHL

DEN

12h 01m

1 stop

$147Frontier

Fri, Feb 27 - Tue, Mar 3

1:09 pm - 12:54 am

DEN

PHL

9h 45m

1 stop

6:00 am - 10:59 pm

PHL

DEN

18h 59m

1 stop

$149Frontier

Thu, Apr 16 - Sat, Apr 18

6:00 am - 4:39 pm

DEN

PHL

8h 39m

1 stop

12:10 pm - 11:04 pm

PHL

DEN

12h 54m

1 stop

$150Frontier

Fri, Apr 10 - Mon, Apr 13

1:17 pm - 12:54 am

DEN

PHL

9h 37m

1 stop

8:25 pm - 10:53 pm

PHL

DEN

4h 28mnonstop

$151Frontier

Wed, Apr 1 - Mon, Apr 6

11:59 pm - 5:34 am

DEN

PHL

3h 35mnonstop

9:00 pm - 9:49 pm

PHL

DEN

26h 49m

1 stop

$152Frontier

Fri, Apr 24 - Sun, Apr 26

11:59 pm - 5:31 am

DEN

PHL

3h 32mnonstop

8:25 pm - 11:04 pm

PHL

DEN

4h 39mnonstop

$154Frontier

Mon, Mar 9 - Mon, Mar 16

11:59 pm - 5:31 am

DEN

PHL

3h 32mnonstop

8:33 pm - 11:12 pm

PHL

DEN

4h 39mnonstop

$155Frontier

Fri, Mar 6 - Mon, Mar 9

11:59 pm - 10:53 am

DEN

PHL

8h 54m

1 stop

8:25 pm - 10:53 pm

PHL

DEN

4h 28mnonstop

$156Frontier

Tue, Apr 7 - Sat, Apr 11

12:05 pm - 6:39 pm

DEN

PHL

28h 34m

1 stop

8:25 pm - 11:04 pm

PHL

DEN

4h 39mnonstop

$157Frontier

Wed, Mar 4 - Fri, Mar 6

Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets

Frontier

Mar 2

DEN12:59 amDenver Intl

7h 28m

1 stop

PHL10:27 amPhiladelphia

Mar 9

PHL8:33 pmPhiladelphia

4h 39m

DEN11:12 pmDenver Intl

$146

Frontier

Feb 27

DEN12:25 pmDenver Intl

3h 30m

PHL5:55 pmPhiladelphia

Mar 3

PHL11:40 amPhiladelphia

12h 01m

1 stop

DEN9:41 pmDenver Intl

$147

Frontier

Apr 11

DEN6:00 amDenver Intl

8h 39m

1 stop

PHL4:39 pmPhiladelphia

Apr 11

PHL8:25 pmPhiladelphia

4h 28m

DEN10:53 pmDenver Intl

$149

Fly from

Fly to

Route

Depart

Return

Price

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Mon 3/2

12:59 am-10:27 am

1 stop7h 28m

Philadelphia

Mon 3/9

8:33 pm-11:12 pm

Nonstop4h 39m

$146

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/27

12:25 pm-5:55 pm

Nonstop3h 30m

Philadelphia

Tue 3/3

11:40 am-9:41 pm

1 stop12h 01m

$147

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 4/16

1:09 pm-12:54 am

1 stop9h 45m

Philadelphia

Sat 4/18

6:00 am-10:59 pm

1 stop18h 59m

$149

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/10

6:00 am-4:39 pm

1 stop8h 39m

Philadelphia

Mon 4/13

12:10 pm-11:04 pm

1 stop12h 54m

$150

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 4/1

1:17 pm-12:54 am

1 stop9h 37m

Philadelphia

Mon 4/6

8:25 pm-10:53 pm

Nonstop4h 28m

$151

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/24

11:59 pm-5:34 am

Nonstop3h 35m

Philadelphia

Sun 4/26

9:00 pm-9:49 pm

1 stop26h 49m

$152

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Mon 3/9

11:59 pm-5:31 am

Nonstop3h 32m

Philadelphia

Mon 3/16

8:25 pm-11:04 pm

Nonstop4h 39m

$154

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 3/6

11:59 pm-5:31 am

Nonstop3h 32m

Philadelphia

Mon 3/9

8:33 pm-11:12 pm

Nonstop4h 39m

$155

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 4/7

11:59 pm-10:53 am

1 stop8h 54m

Philadelphia

Sat 4/11

8:25 pm-10:53 pm

Nonstop4h 28m

$156

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 3/4

12:05 pm-6:39 pm

1 stop28h 34m

Philadelphia

Fri 3/6

8:25 pm-11:04 pm

Nonstop4h 39m

$157

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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 cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Denver is in August. Flight prices, which tend to average around $272, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from Denver averaging around $272.

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

The cheapest day to depart from Denver to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $310. On the other hand, Saturday 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 $399.

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 afternoon. momondo users have found flights departing from Denver to Philadelphia in the afternoon for as low as $251. 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 $475.

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 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 $313 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 $268 on momondo.

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

There are 4 cabin classes available to choose from on Denver Intl 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 13% 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 February 2026, prices for Denver to Philadelphia flights are approximately 6% 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	$176
Fastest flight time	3h 25m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from Denver in the past 72 hours is $176. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $258.

The fastest flight from Denver to Philadelphia takes 3h 25m

Direct flights go from Denver to Philadelphia every day.

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

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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 25m 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 February 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 15.76% of all bookings. The subsequent popular models are Airbus A321-100/200 at 15.76%, Boeing 737 MAX 8 at 14.31%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 12.22%.
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 33%, Southwest at 15%, and United Airlines at 14%.

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 $111	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
JetBlue	PriceFrom $122	Free Cancellation	Rating 7.2 2,895 reviews	Search JetBlue flights
Delta	PriceFrom $128	Free Cancellation	Rating 7.9 8,181 reviews	Search Delta flights
United Airlines	PriceFrom $178	Free Cancellation	Rating 7.4 9,279 reviews	Search United Airlines flights
American Airlines	PriceFrom $204	Free Cancellation	Rating 7.2 11,271 reviews	Search American Airlines flights
Southwest	PriceFrom $210	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights

Southwest Flights From Denver to Philadelphia
Southwest flight deals from Denver to Philadelphia start from $210 round-trip. Over the 8 Southwest flights for this route in a normal week, average airfare is usually $383 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Denver to Philadelphia
$178 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 $416, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,279 user reviews) flies into Philadelphia from Denver 3 times in an average week so prices can vary.

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Avalon

North Wildwood

Dover

Lewes

Stone Harbor

Essington

Vineland

New Castle

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.