Cheap flights from Denver to Philadelphia from $102

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 5/17. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:06 pm - 11:44 pm
DEN
-
PHL
24h 38m
1 stop
Frontier Logo
8:25 pm - 10:53 pm
PHL
-
DEN
4h 28mnonstop
$175Frontier
Wed, Apr 8 - Sun, Apr 12
Frontier Logo
3:45 pm - 9:29 am
DEN
-
PHL
15h 44m
1 stop
Frontier Logo
8:36 pm - 11:04 pm
PHL
-
DEN
4h 28mnonstop
$176Frontier
Sun, Apr 19 - Tue, Apr 21
Frontier Logo
7:05 pm - 5:13 am
DEN
-
PHL
8h 08m
1 stop
Frontier Logo
6:10 am - 8:32 pm
PHL
-
DEN
16h 22m
1 stop
$177Frontier
Sat, Apr 18 - Fri, Apr 24
Frontier Logo
1:09 pm - 12:54 am
DEN
-
PHL
9h 45m
1 stop
Frontier Logo
8:41 pm - 11:09 pm
PHL
-
DEN
4h 28mnonstop
$178Frontier
Fri, Apr 17 - Fri, Apr 24
Frontier Logo
1:09 pm - 12:54 am
DEN
-
PHL
9h 45m
1 stop
Frontier Logo
8:41 pm - 11:09 pm
PHL
-
DEN
4h 28mnonstop
$179Frontier
Fri, Apr 17 - Thu, Apr 30
Frontier Logo
11:59 pm - 5:37 am
DEN
-
PHL
3h 38mnonstop
Frontier Logo
5:06 pm - 11:52 pm
PHL
-
DEN
8h 46m
1 stop
$180Frontier
Wed, May 20 - Sun, May 24
Frontier Logo
4:59 pm - 11:18 pm
DEN
-
PHL
28h 19m
1 stop
Frontier Logo
9:20 am - 2:32 pm
PHL
-
DEN
7h 12m
1 stop
$181Frontier
Thu, May 28 - Mon, Jun 1
Frontier Logo
11:56 pm - 5:31 am
DEN
-
PHL
3h 35mnonstop
Frontier Logo
8:25 pm - 10:53 pm
PHL
-
DEN
4h 28mnonstop
$182Frontier
Fri, Apr 10 - Mon, Apr 13
Frontier Logo
6:00 am - 11:43 am
DEN
-
PHL
27h 43m
1 stop
Frontier Logo
10:36 pm - 5:23 pm
PHL
-
DEN
20h 47m
1 stop
$183Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
3:45 pm - 9:29 am
DEN
-
PHL
15h 44m
1 stop
Frontier Logo
3:29 pm - 9:27 am
PHL
-
DEN
19h 58m
1 stop
$184Frontier
Sun, Apr 19 - Mon, Apr 20

Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets
Frontier
Apr 8
DEN9:06 pmDenver Intl
24h 38m
1 stop
PHL11:44 pmPhiladelphia
Apr 12
PHL8:25 pmPhiladelphia
4h 28m
DEN10:53 pmDenver Intl
$175
Frontier
Apr 19
DEN3:45 pmDenver Intl
15h 44m
1 stop
PHL9:29 amPhiladelphia
Apr 21
PHL8:36 pmPhiladelphia
4h 28m
DEN11:04 pmDenver Intl
$176
Frontier
Apr 18
DEN7:05 pmDenver Intl
8h 08m
1 stop
PHL5:13 amPhiladelphia
Apr 24
PHL6:10 amPhiladelphia
16h 22m
1 stop
DEN8:32 pmDenver Intl
$177

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 March 22, 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

Cheapest round-trip

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 4/8

9:06 pm-11:44 pm

1 stop24h 38m

Philadelphia

Sun 4/12

8:25 pm-10:53 pm

Nonstop4h 28m

$175

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sun 4/19

3:45 pm-9:29 am

1 stop15h 44m

Philadelphia

Tue 4/21

8:36 pm-11:04 pm

Nonstop4h 28m

$176

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sat 4/18

7:05 pm-5:13 am

1 stop8h 08m

Philadelphia

Fri 4/24

6:10 am-8:32 pm

1 stop16h 22m

$177

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/17

1:09 pm-12:54 am

1 stop9h 45m

Philadelphia

Fri 4/24

8:41 pm-11:09 pm

Nonstop4h 28m

$178

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/17

1:09 pm-12:54 am

1 stop9h 45m

Philadelphia

Thu 4/30

8:41 pm-11:09 pm

Nonstop4h 28m

$179

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Wed 5/20

11:59 pm-5:37 am

Nonstop3h 38m

Philadelphia

Sun 5/24

5:06 pm-11:52 pm

1 stop8h 46m

$180

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 5/28

4:59 pm-11:18 pm

1 stop28h 19m

Philadelphia

Mon 6/1

9:20 am-2:32 pm

1 stop7h 12m

$181
Quickest round-trip

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/10

11:56 pm-5:31 am

Nonstop3h 35m

Philadelphia

Mon 4/13

8:25 pm-10:53 pm

Nonstop4h 28m

$182

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 4/9

6:00 am-11:43 am

1 stop27h 43m

Philadelphia

Mon 4/13

10:36 pm-5:23 pm

1 stop20h 47m

$183

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sun 4/19

3:45 pm-9:29 am

1 stop15h 44m

Philadelphia

Mon 4/20

3:29 pm-9:27 am

1 stop19h 58m

$184

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 February. Flight prices, which tend to average around $263, 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 $326. On the other hand, Sunday 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 $406.

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 $259. 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 $459.

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 $314 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 $271 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 12% 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 March 2026, prices for Denver to Philadelphia flights are approximately 34% 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

$208

Fastest flight time

3h 30m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Denver in the past 72 hours is $208. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $287.
The fastest flight from Denver to Philadelphia takes 3h 30m
Direct flights go from Denver to Philadelphia every day.
There is 1 airport in Philadelphia. From Denver there are direct flights to Philadelphia (PHL).
  • 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 30m 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 $114Free CancellationRating
5.7
3,020 reviews
Search Frontier flights
JetBluePriceFrom $122Free CancellationRating
7.2
2,909 reviews
Search JetBlue flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,315 reviews
Search Delta flights
United AirlinesPriceFrom $191Free CancellationRating
7.4
9,458 reviews
Search United Airlines flights
American AirlinesPriceFrom $200Free CancellationRating
7.1
11,487 reviews
Search American Airlines flights
SouthwestPriceFrom $213Free CancellationRating
8.0
4,325 reviews
Search Southwest flights
  • Southwest Flights From Denver to Philadelphia

    Southwest flight deals from Denver to Philadelphia start from $213 round-trip. Over the 10 Southwest flights for this route in a normal week, average airfare is usually $385 round-trip - but some users have found much cheaper deals with momondo.

  • United Airlines Flights From Denver to Philadelphia

    $191 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 $423, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,458 user reviews) flies into Philadelphia from Denver 14 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
Cherry Hill
King of Prussia
Newark
Dewey Beach
Reading
Avalon
North Wildwood
Dover
Lewes
Stone Harbor
Essington
New Castle
Vineland
Pottstown
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

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1 adult
Tue 4/21
Tue 4/28

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