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Cheap flights from Denver to Philadelphia from $80

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 1/20. 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
6:31 pm - 8:57 amDEN-PHL
12h 26m1 stop
Frontier Logo
6:06 pm - 12:21 pmPHL-DEN
20h 15m2 stops
$162Frontier
Find Deal
Fri, Jan 9 - Mon, Jan 12
Frontier Logo
11:59 pm - 5:31 amDEN-PHL
3h 32mnonstop
Frontier Logo
10:00 pm - 6:50 amPHL-DEN
10h 50m1 stop
$164Frontier
Find Deal
Fri, Mar 6 - Sat, Mar 7
Frontier Logo
6:31 pm - 8:57 amDEN-PHL
12h 26m1 stop
Frontier Logo
12:33 pm - 9:01 pmPHL-DEN
10h 28m1 stop
$165Frontier
Find Deal
Fri, Jan 9 - Thu, Jan 15
Frontier Logo
6:00 am - 5:32 pmDEN-PHL
9h 32m1 stop
Frontier Logo
6:33 pm - 8:20 amPHL-DEN
15h 47m1 stop
$166Frontier
Find Deal
Thu, Jan 8 - Sun, Jan 18
Multiple Airlines Logo
7:10 am - 7:59 pmDEN-PHL
10h 49m1 stop
Multiple Airlines Logo
3:04 pm - 10:20 amPHL-DEN
21h 16m2 stops
$167Multiple Airlines
Find Deal
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
11:25 pm - 6:32 pmDEN-PHL
17h 07m1 stop
Multiple Airlines Logo
4:00 pm - 10:18 amPHL-DEN
20h 18m2 stops
$168Multiple Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 9
Southwest Logo
1:55 pm - 9:00 pmDEN-PHL
5h 05m1 stop
Southwest Logo
6:35 am - 8:45 amPHL-DEN
4h 10mnonstop
$169Southwest
Find Deal
Thu, Dec 25 - Thu, Jan 1
Frontier Logo
2:47 pm - 5:32 pmDEN-PHL
24h 45m1 stop
Frontier Logo
4:03 pm - 7:59 pmPHL-DEN
29h 56m1 stop
$170Frontier
Find Deal
Wed, Jan 7 - Sat, Jan 10
Frontier Logo
7:10 am - 7:59 pmDEN-PHL
10h 49m1 stop
Frontier Logo
8:30 am - 3:16 pmPHL-DEN
8h 46m1 stop
$171Frontier
Find Deal
Fri, Jan 23 - Sun, Feb 1
Frontier Logo
11:59 pm - 5:31 amDEN-PHL
3h 32mnonstop
Frontier Logo
8:36 pm - 10:59 pmPHL-DEN
4h 23mnonstop
$172Frontier
Find Deal
Thu, Dec 25 - Thu, Jan 1

American Airlines flights from Denver to Philadelphia

Our best American Airlines deals on Denver to Philadelphia flight tickets
American Airlines
Feb 18
DEN7:00 amDenver Intl
3h 40m
PHL12:40 pmPhiladelphia
Feb 28
PHL7:00 pmPhiladelphia
4h 33m
DEN9:33 pmDenver Intl
$204
Find similar
American Airlines
Dec 3
DEN7:00 amDenver Intl
3h 38m
PHL12:38 pmPhiladelphia
Dec 6
PHL8:46 pmPhiladelphia
4h 20m
DEN11:06 pmDenver Intl
$251
Find similar

Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets
Frontier
Nov 27
DEN11:15 pmDenver Intl
3h 30m
PHL4:45 amPhiladelphia
Dec 1
PHL5:59 pmPhiladelphia
17h 09m
1 stop
DEN9:08 amDenver Intl
$163
Find similar
Frontier
Mar 6
DEN11:59 pmDenver Intl
3h 32m
PHL5:31 amPhiladelphia
Mar 7
PHL10:00 pmPhiladelphia
10h 50m
1 stop
DEN6:50 amDenver Intl
$164
Find similar
Frontier
Jan 9
DEN6:31 pmDenver Intl
12h 26m
1 stop
PHL8:57 amPhiladelphia
Jan 15
PHL12:33 pmPhiladelphia
10h 28m
1 stop
DEN9:01 pmDenver Intl
$165
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 21, 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

Fri 1/9

6:31 pm-8:57 am

1 stop12h 26m

Philadelphia

Mon 1/12

6:06 pm-12:21 pm

2 stops20h 15m

$162

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 3/6

11:59 pm-5:31 am

Nonstop3h 32m

Philadelphia

Sat 3/7

10:00 pm-6:50 am

1 stop10h 50m

$164

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 1/9

6:31 pm-8:57 am

1 stop12h 26m

Philadelphia

Thu 1/15

12:33 pm-9:01 pm

1 stop10h 28m

$165

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 1/8

6:00 am-5:32 pm

1 stop9h 32m

Philadelphia

Sun 1/18

6:33 pm-8:20 am

1 stop15h 47m

$166

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 2/6

7:10 am-7:59 pm

1 stop10h 49m

Philadelphia

Mon 2/9

3:04 pm-10:20 am

2 stops21h 16m

$167

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 12/4

11:25 pm-6:32 pm

1 stop17h 07m

Philadelphia

Tue 12/9

4:00 pm-10:18 am

2 stops20h 18m

$168

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 12/25

1:55 pm-9:00 pm

1 stop5h 05m

Philadelphia

Thu 1/1

6:35 am-8:45 am

Nonstop4h 10m

$169

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 1/7

2:47 pm-5:32 pm

1 stop24h 45m

Philadelphia

Sat 1/10

4:03 pm-7:59 pm

1 stop29h 56m

$170

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 1/23

7:10 am-7:59 pm

1 stop10h 49m

Philadelphia

Sun 2/1

8:30 am-3:16 pm

1 stop8h 46m

$171

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 12/25

11:59 pm-5:31 am

Nonstop3h 32m

Philadelphia

Thu 1/1

8:36 pm-10:59 pm

Nonstop4h 23m

$172

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 $311 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 39% 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 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 $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 20m
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 32m 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
2,902 reviews
Search JetBlue flights
FrontierPriceFrom $123Free CancellationRating
5.8
3,104 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,002 reviews
Search Delta flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
American AirlinesPriceFrom $200Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights
SouthwestPriceFrom $201Free CancellationRating
8.0
4,251 reviews
Search Southwest flights

  • Southwest Flights From Denver to Philadelphia

    Southwest flight deals from Denver to Philadelphia start from $201 round-trip. Over the 3 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 9,028 user reviews) flies into Philadelphia from Denver 20 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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