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Cheap flights from Denver to Philadelphia from $86

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 2/23. 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.
Multiple Airlines Logo
11:25 pm - 6:08 pmDEN-PHL
16h 43m1 stop
Multiple Airlines Logo
3:45 pm - 8:56 amPHL-DEN
19h 11m2 stops
$177Multiple Airlines
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Wed, Dec 10 - Wed, Dec 17
Frontier Logo
12:59 am - 6:08 pmDEN-PHL
15h 09m2 stops
Frontier Logo
4:12 pm - 9:59 pmPHL-DEN
7h 47m1 stop
$178Frontier
Find Deal
Wed, Dec 10 - Mon, Dec 15
Frontier Logo
10:50 am - 2:21 pmDEN-PHL
25h 31m1 stop
Frontier Logo
1:54 pm - 11:13 pmPHL-DEN
11h 19m1 stop
$179Frontier
Find Deal
Tue, Dec 9 - Tue, Dec 23
Frontier Logo
12:59 am - 11:18 amDEN-PHL
8h 19m1 stop
Frontier Logo
6:00 am - 7:45 pmPHL-DEN
15h 45m1 stop
$180Frontier
Find Deal
Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
8:31 am - 6:46 pmDEN-PHL
8h 15m1 stop
Multiple Airlines Logo
8:54 pm - 6:22 pmPHL-DEN
23h 28m2 stops
$181Multiple Airlines
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Fri, Nov 28 - Tue, Dec 2
Frontier Logo
11:15 pm - 4:45 amDEN-PHL
3h 30mnonstop
Frontier Logo
5:46 am - 11:51 amPHL-DEN
8h 05m1 stop
$182Frontier
Find Deal
Mon, Nov 24 - Fri, Nov 28
Frontier Logo
12:59 am - 11:23 amDEN-PHL
8h 24m1 stop
Frontier Logo
6:59 pm - 8:56 amPHL-DEN
15h 57m1 stop
$183Frontier
Find Deal
Sun, Dec 7 - Wed, Dec 17
Frontier Logo
12:59 am - 2:09 pmDEN-PHL
11h 10m1 stop
Frontier Logo
8:00 am - 5:47 pmPHL-DEN
11h 47m1 stop
$184Frontier
Find Deal
Tue, Feb 17 - Sat, Feb 28
Frontier Logo
11:59 pm - 5:31 amDEN-PHL
3h 32mnonstop
Frontier Logo
8:36 pm - 10:59 pmPHL-DEN
4h 23mnonstop
$185Frontier
Find Deal
Mon, Dec 8 - Thu, Dec 18
Frontier Logo
12:44 am - 11:23 amDEN-PHL
8h 39m1 stop
Frontier Logo
6:32 pm - 1:33 pmPHL-DEN
21h 01m2 stops
$186Frontier
Find Deal
Mon, Nov 24 - Wed, Dec 3

Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets
Frontier
Dec 10
DEN12:59 amDenver Intl
15h 09m
2 stops
PHL6:08 pmPhiladelphia
Dec 15
PHL4:12 pmPhiladelphia
7h 47m
1 stop
DEN9:59 pmDenver Intl
$178
Find similar
Frontier
Dec 9
DEN10:50 amDenver Intl
25h 31m
1 stop
PHL2:21 pmPhiladelphia
Dec 23
PHL1:54 pmPhiladelphia
11h 19m
1 stop
DEN11:13 pmDenver Intl
$179
Find similar
Frontier
Dec 3
DEN12:59 amDenver Intl
8h 19m
1 stop
PHL11:18 amPhiladelphia
Dec 7
PHL6:00 amPhiladelphia
15h 45m
1 stop
DEN7:45 pmDenver Intl
$180
Find similar

Southwest flights from Denver to Philadelphia

Our best Southwest deals on Denver to Philadelphia flight tickets
Southwest
Dec 12
DEN6:20 pmDenver Intl
3h 25m
PHL11:45 pmPhiladelphia
Dec 17
PHL6:35 amPhiladelphia
4h 10m
DEN8:45 amDenver Intl
$198
Find similar
Southwest
Dec 10
DEN8:15 amDenver Intl
7h 20m
1 stop
PHL5:35 pmPhiladelphia
Dec 16
PHL6:35 amPhiladelphia
4h 10m
DEN8:45 amDenver Intl
$215
Find similar
Southwest
Dec 3
DEN8:15 amDenver Intl
7h 20m
1 stop
PHL5:35 pmPhiladelphia
Dec 10
PHL5:00 pmPhiladelphia
4h 10m
DEN7:10 pmDenver Intl
$225
Find similar

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 November 13, 2025.
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

Wed 12/10

11:25 pm-6:08 pm

1 stop16h 43m

Philadelphia

Wed 12/17

3:45 pm-8:56 am

2 stops19h 11m

$177

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 12/10

12:59 am-6:08 pm

2 stops15h 09m

Philadelphia

Mon 12/15

4:12 pm-9:59 pm

1 stop7h 47m

$178

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 12/9

10:50 am-2:21 pm

1 stop25h 31m

Philadelphia

Tue 12/23

1:54 pm-11:13 pm

1 stop11h 19m

$179

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 12/3

12:59 am-11:18 am

1 stop8h 19m

Philadelphia

Sun 12/7

6:00 am-7:45 pm

1 stop15h 45m

$180

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 11/28

8:31 am-6:46 pm

1 stop8h 15m

Philadelphia

Tue 12/2

8:54 pm-6:22 pm

2 stops23h 28m

$181

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Mon 11/24

11:15 pm-4:45 am

Nonstop3h 30m

Philadelphia

Fri 11/28

5:46 am-11:51 am

1 stop8h 05m

$182

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sun 12/7

12:59 am-11:23 am

1 stop8h 24m

Philadelphia

Wed 12/17

6:59 pm-8:56 am

1 stop15h 57m

$183

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 2/17

12:59 am-2:09 pm

1 stop11h 10m

Philadelphia

Sat 2/28

8:00 am-5:47 pm

1 stop11h 47m

$184

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Mon 12/8

11:59 pm-5:31 am

Nonstop3h 32m

Philadelphia

Thu 12/18

8:36 pm-10:59 pm

Nonstop4h 23m

$185

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Mon 11/24

12:44 am-11:23 am

1 stop8h 39m

Philadelphia

Wed 12/3

6:32 pm-1:33 pm

2 stops21h 01m

$186

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 $270, 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 Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $315. 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 $427.

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 $247. 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 $489.

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 $266 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?

No. A direct flight is the cheapest option for a flight between Denver to Philadelphia.

How have Denver to Philadelphia flight prices changed over time?

As of November 2025, prices for Denver to Philadelphia flights are approximately 41% 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

$135

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 $135. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $250.
The fastest flight from Denver to Philadelphia takes 3h 25m
Direct flights go from Denver to Philadelphia every day.
There is 1 airport near Philadelphia: 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 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?

  • 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
JetBluePriceFrom $122Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
FrontierPriceFrom $123Free CancellationRating
5.8
3,112 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,016 reviews
Search United Airlines flights
American AirlinesPriceFrom $200Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
SouthwestPriceFrom $201Free CancellationRating
8.0
4,236 reviews
Search Southwest flights

  • Southwest Flights From Denver to Philadelphia

    Southwest flight deals from Denver to Philadelphia start from $201 round-trip. Over the 17 Southwest flights for this route in a normal week, average airfare is usually $365 round-trip - but some users have found much cheaper deals with momondo.

  • United Airlines Flights From Denver to Philadelphia

    $189 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 $437, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,016 user reviews) flies into Philadelphia from Denver 19 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
Ocean City
Wildwood Crest
King of Prussia
Cherry Hill
Dewey Beach
Newark
Reading
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Essington
Vineland
Pottstown
New Castle
Somers Point

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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