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Cheap flights from Denver to Philadelphia from $104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Philadelphia departing on 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Denver to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:25 pm - 5:55 pm
DEN
-
PHL
3h 30mnonstop
Frontier Logo
12:21 pm - 9:11 am
PHL
-
DEN
22h 50m
1 stop
$147Frontier
Fri, Feb 27 - Tue, Mar 3
Frontier Logo
11:00 am - 11:05 pm
DEN
-
PHL
10h 05m
1 stop
Frontier Logo
11:40 am - 9:41 pm
PHL
-
DEN
12h 01m
1 stop
$148Frontier
Sat, Feb 28 - Tue, Mar 3
Frontier Logo
11:59 pm - 5:34 am
DEN
-
PHL
3h 35mnonstop
Frontier Logo
7:10 pm - 11:03 pm
PHL
-
DEN
29h 53m
1 stop
$152Frontier
Fri, Apr 24 - Mon, Apr 27
Frontier Logo
11:59 pm - 5:34 am
DEN
-
PHL
3h 35mnonstop
Frontier Logo
8:00 am - 9:58 pm
PHL
-
DEN
15h 58m
2 stops
$154Frontier
Wed, Apr 22 - Tue, Apr 28
Frontier Logo
12:25 pm - 5:55 pm
DEN
-
PHL
3h 30mnonstop
Frontier Logo
9:00 pm - 9:11 am
PHL
-
DEN
14h 11m
1 stop
$155Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
12:25 pm - 5:55 pm
DEN
-
PHL
3h 30mnonstop
Frontier Logo
5:47 pm - 8:17 pm
PHL
-
DEN
4h 30mnonstop
$156Frontier
Fri, Feb 27 - Sun, Mar 1
Frontier Logo
12:59 am - 10:27 am
DEN
-
PHL
7h 28m
1 stop
Frontier Logo
5:47 pm - 8:17 pm
PHL
-
DEN
4h 30mnonstop
$157Frontier
Tue, Feb 24 - Sun, Mar 1
Frontier Logo
12:59 am - 11:13 am
DEN
-
PHL
8h 14m
1 stop
Frontier Logo
11:40 am - 9:41 pm
PHL
-
DEN
12h 01m
1 stop
$158Frontier
Fri, Feb 27 - Tue, Mar 3
Frontier Logo
11:59 pm - 5:34 am
DEN
-
PHL
3h 35mnonstop
Frontier Logo
5:05 am - 12:09 pm
PHL
-
DEN
9h 04m
1 stop
$159Frontier
Thu, May 7 - Sun, May 10
Frontier Logo
11:59 pm - 10:59 am
DEN
-
PHL
9h 00m
1 stop
Frontier Logo
8:33 pm - 11:12 pm
PHL
-
DEN
4h 39mnonstop
$160Frontier
Fri, Mar 6 - Mon, Mar 9

Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets
Frontier
Feb 27
DEN12:25 pmDenver Intl
3h 30m
PHL5:55 pmPhiladelphia
Mar 3
PHL12:21 pmPhiladelphia
22h 50m
1 stop
DEN9:11 amDenver Intl
$147
Frontier
Feb 28
DEN11:00 amDenver Intl
10h 05m
1 stop
PHL11:05 pmPhiladelphia
Mar 3
PHL11:40 amPhiladelphia
12h 01m
1 stop
DEN9:41 pmDenver Intl
$148
Frontier
Apr 24
DEN11:59 pmDenver Intl
3h 35m
PHL5:34 amPhiladelphia
Apr 27
PHL7:10 pmPhiladelphia
29h 53m
1 stop
DEN11:03 pmDenver Intl
$152

American Airlines flights from Denver to Philadelphia

Our best American Airlines deals on Denver to Philadelphia flight tickets
American Airlines
Mar 7
DEN7:05 amDenver Intl
3h 32m
PHL12:37 pmPhiladelphia
Mar 14
PHL7:10 pmPhiladelphia
4h 26m
DEN9:36 pmDenver Intl
$195
American Airlines
Feb 21
DEN7:05 amDenver Intl
3h 32m
PHL12:37 pmPhiladelphia
Mar 3
PHL7:10 pmPhiladelphia
4h 26m
DEN9:36 pmDenver Intl
$229

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 8, 2026.
Use the filters below to find and compare flights from Denver to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/27

12:25 pm-5:55 pm

Nonstop3h 30m

Philadelphia

Tue 3/3

12:21 pm-9:11 am

1 stop22h 50m

$147

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sat 2/28

11:00 am-11:05 pm

1 stop10h 05m

Philadelphia

Tue 3/3

11:40 am-9:41 pm

1 stop12h 01m

$148

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/24

11:59 pm-5:34 am

Nonstop3h 35m

Philadelphia

Mon 4/27

7:10 pm-11:03 pm

1 stop29h 53m

$152

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 4/22

11:59 pm-5:34 am

Nonstop3h 35m

Philadelphia

Tue 4/28

8:00 am-9:58 pm

2 stops15h 58m

$154

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/27

12:25 pm-5:55 pm

Nonstop3h 30m

Philadelphia

Mon 3/2

9:00 pm-9:11 am

1 stop14h 11m

$155

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/27

12:25 pm-5:55 pm

Nonstop3h 30m

Philadelphia

Sun 3/1

5:47 pm-8:17 pm

Nonstop4h 30m

$156

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 2/24

12:59 am-10:27 am

1 stop7h 28m

Philadelphia

Sun 3/1

5:47 pm-8:17 pm

Nonstop4h 30m

$157

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/27

12:59 am-11:13 am

1 stop8h 14m

Philadelphia

Tue 3/3

11:40 am-9:41 pm

1 stop12h 01m

$158

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 5/7

11:59 pm-5:34 am

Nonstop3h 35m

Philadelphia

Sun 5/10

5:05 am-12:09 pm

1 stop9h 04m

$159

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 3/6

11:59 pm-10:59 am

1 stop9h 00m

Philadelphia

Mon 3/9

8:33 pm-11:12 pm

Nonstop4h 39m

$160

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

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

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Denver is in September. Flight prices, which tend to average around $271, are often lower during this time because this is during the off-season. The month of August 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 $252. 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 21m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

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 21m
Direct flights go from Denver to Philadelphia on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
There is 1 airport in Philadelphia. From Denver there are direct flights to Philadelphia (PHL).
Search flight deals

  • 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 21m 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?

  • 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?

  • What is the most popular airline from Denver to Philadelphia?

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
FrontierPriceFrom $110Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
JetBluePriceFrom $122Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,172 reviews
Search Delta flights
United AirlinesPriceFrom $178Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
American AirlinesPriceFrom $204Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
SouthwestPriceFrom $210Free CancellationRating
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 10 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 $417, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,254 user reviews) flies into Philadelphia from Denver 11 times in an average week so prices can vary.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Wildwood Crest
Ocean City
King of Prussia
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
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.

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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