Cheap flights from Denver to Philadelphia from $100

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 6/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:05 pm - 6:50 am
DEN
-
PHL
9h 45m
1 stop
Frontier Logo
3:29 pm - 8:28 am
PHL
-
DEN
18h 59m
1 stop
$172Frontier
Mon, Apr 20 - Sun, Apr 26
Frontier Logo
11:59 pm - 1:06 am
DEN
-
PHL
23h 07m
1 stop
Frontier Logo
7:45 am - 2:32 pm
PHL
-
DEN
8h 47m
1 stop
$173Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
9:25 am - 7:54 pm
DEN
-
PHL
8h 29m
1 stop
Frontier Logo
8:25 pm - 10:53 pm
PHL
-
DEN
4h 28mnonstop
$174Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
11:59 pm - 9:11 am
DEN
-
PHL
7h 12m
1 stop
Frontier Logo
8:41 pm - 11:09 pm
PHL
-
DEN
4h 28mnonstop
$175Frontier
Tue, Apr 14 - Wed, Apr 22
Frontier Logo
10:29 pm - 6:50 am
DEN
-
PHL
30h 21m
1 stop
Frontier Logo
5:55 am - 8:55 am
PHL
-
DEN
29h 00m
1 stop
$176Frontier
Sun, Apr 26 - Sun, May 3
Frontier Logo
6:00 am - 11:43 am
DEN
-
PHL
27h 43m
1 stop
Frontier Logo
5:01 am - 12:09 pm
PHL
-
DEN
9h 08m
1 stop
$177Frontier
Fri, Apr 10 - Mon, Apr 13
Frontier Logo
11:59 pm - 9:31 pm
DEN
-
PHL
19h 32m
1 stop
Frontier Logo
8:36 pm - 11:04 pm
PHL
-
DEN
4h 28mnonstop
$178Frontier
Thu, Apr 23 - Sun, Apr 26
Frontier Logo
6:03 am - 6:04 pm
DEN
-
PHL
10h 01m
1 stop
Frontier Logo
1:32 pm - 10:24 pm
PHL
-
DEN
10h 52m
1 stop
$179Frontier
Fri, May 15 - Mon, May 18
Frontier Logo
6:03 am - 6:04 pm
DEN
-
PHL
10h 01m
1 stop
Frontier Logo
9:20 am - 2:32 pm
PHL
-
DEN
7h 12m
1 stop
$180Frontier
Fri, May 15 - Fri, May 22
Frontier Logo
2:00 pm - 9:10 am
DEN
-
PHL
17h 10m
1 stop
Frontier Logo
6:43 pm - 3:21 pm
PHL
-
DEN
22h 38m
1 stop
$181Frontier
Sat, May 30 - Fri, Jun 5

Frontier flights from Denver to Philadelphia

Our best Frontier deals on Denver to Philadelphia flight tickets
Frontier
Jul 29
DEN6:30 amDenver Intl
10h 33m
1 stop
PHL7:03 pmPhiladelphia
Aug 1
PHL1:32 pmPhiladelphia
10h 44m
1 stop
DEN10:16 pmDenver Intl
$172
Frontier
May 14
DEN11:59 pmDenver Intl
23h 07m
1 stop
PHL1:06 amPhiladelphia
May 17
PHL7:45 amPhiladelphia
8h 47m
1 stop
DEN2:32 pmDenver Intl
$173
Frontier
Apr 9
DEN9:25 amDenver Intl
8h 29m
1 stop
PHL7:54 pmPhiladelphia
Apr 13
PHL8:25 pmPhiladelphia
4h 28m
DEN10:53 pmDenver Intl
$174

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 April 1, 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

Mon 4/20

7:05 pm-6:50 am

1 stop9h 45m

Philadelphia

Sun 4/26

3:29 pm-8:28 am

1 stop18h 59m

$172

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 5/14

11:59 pm-1:06 am

1 stop23h 07m

Philadelphia

Sun 5/17

7:45 am-2:32 pm

1 stop8h 47m

$173

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 4/9

9:25 am-7:54 pm

1 stop8h 29m

Philadelphia

Mon 4/13

8:25 pm-10:53 pm

Nonstop4h 28m

$174
Quickest round-trip

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Tue 4/14

11:59 pm-9:11 am

1 stop7h 12m

Philadelphia

Wed 4/22

8:41 pm-11:09 pm

Nonstop4h 28m

$175

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sun 4/26

10:29 pm-6:50 am

1 stop30h 21m

Philadelphia

Sun 5/3

5:55 am-8:55 am

1 stop29h 00m

$176

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 4/10

6:00 am-11:43 am

1 stop27h 43m

Philadelphia

Mon 4/13

5:01 am-12:09 pm

1 stop9h 08m

$177

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Thu 4/23

11:59 pm-9:31 pm

1 stop19h 32m

Philadelphia

Sun 4/26

8:36 pm-11:04 pm

Nonstop4h 28m

$178

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 5/15

6:03 am-6:04 pm

1 stop10h 01m

Philadelphia

Mon 5/18

1:32 pm-10:24 pm

1 stop10h 52m

$179

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Fri 5/15

6:03 am-6:04 pm

1 stop10h 01m

Philadelphia

Fri 5/22

9:20 am-2:32 pm

1 stop7h 12m

$180

DenverPhiladelphia

DEN - PHL

DENPHL

Denver Intl

Sat 5/30

2:00 pm-9:10 am

1 stop17h 10m

Philadelphia

Fri 6/5

6:43 pm-3:21 pm

1 stop22h 38m

$181

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 typical price of a round-trip flight between Denver and Philadelphia?

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 $327. 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 $413.

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 evening. momondo users have found flights departing from Denver to Philadelphia in the evening for as low as $258. 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 $472.

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 7% 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 April 2026, prices for Denver to Philadelphia flights are approximately 0% 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

$210

Fastest flight time

3h 21m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Denver in the past 72 hours is $210. The best round-trip flight deal from Denver to Philadelphia found on momondo in the last 72 hours is $281.
The fastest flight from Denver to Philadelphia takes 3h 21m
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 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 $113Free CancellationRating
5.7
3,004 reviews
Search Frontier flights
JetBluePriceFrom $122Free CancellationRating
7.2
2,909 reviews
Search JetBlue flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,366 reviews
Search Delta flights
United AirlinesPriceFrom $192Free CancellationRating
7.4
9,535 reviews
Search United Airlines flights
American AirlinesPriceFrom $206Free CancellationRating
7.1
11,549 reviews
Search American Airlines flights
SouthwestPriceFrom $214Free CancellationRating
8.0
4,337 reviews
Search Southwest flights
  • Southwest Flights From Denver to Philadelphia

    Southwest flight deals from Denver to Philadelphia start from $214 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

    $192 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 $426, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,533 user reviews) flies into Philadelphia from Denver 15 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
New Castle
Essington
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
Fri 5/1
Fri 5/8

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