How long does it take to fly to Philadelphia?

If you’re flying from a popular airport in Colorado, such as Denver or Colorado Springs, and flying into Philadelphia, then you can expect flight times to average 3h 37m and 6h 13m, respectively.

What airlines fly to Philadelphia?

United Airlines, Frontier and Delta are the top three most popular airlines that fly to Philadelphia from Colorado according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

How many flights depart from Colorado to Philadelphia on average per day?

13 flights are operational daily from Colorado to Philadelphia as of September 2026. The most popular departure time for this route is 1:00PM, with 47% of flights per day taking off at noon.

What is the cheapest airline that flies from Colorado to Philadelphia?

United Airlines, Southwest, and Delta are the most popular carriers operating from Colorado to Philadelphia

How many flights depart from Colorado to Philadelphia on average per week?

As of September 2026, there are 97 flights per week flying from Colorado to Philadelphia. The most common day of the week flights depart is Tue, with 20% of flights taking off on this day.

When did momondo last update prices for flights from Colorado to Philadelphia Airport?

Prices for flights from Colorado to Philadelphia Airport refresh daily.

How many operators does momondo search for flights from Colorado to Philadelphia Airport?

As of September 2026, there are 6 operators available to choose from for flights from Colorado to Philadelphia Airport.

How old do you have to be to fly from Colorado 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 Colorado 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.

$147 Cheap Flights from Colorado to Philadelphia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Philadelphia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:31 am - 7:18 amDEN Denver Intl-PHL Philadelphia

21h 47m1 stop Las Vegas Harry Reid Intl

6:40 am - 6:52 pmPHL Philadelphia-DEN Denver Intl

14h 12m1 stop Charlotte Douglas

$248Frontier

Wed, Oct 14 - Fri, Oct 16

6:00 am - 8:20 pmDEN Denver Intl-PHL Philadelphia

12h 20m1 stop Atlanta Hartsfield-Jackson

6:10 am - 7:12 pmPHL Philadelphia-DEN Denver Intl

15h 02m1 stop Raleigh-Durham

$248Frontier

Thu, Nov 19 - Mon, Nov 23

7:37 pm - 1:16 amDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

7:58 pm - 5:14 pmPHL Philadelphia-DEN Denver Intl

23h 16m1 stop Grand Rapids Gerald R. Ford Intl

$252Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

8:55 pm - 8:04 pmDEN Denver Intl-PHL Philadelphia

21h 09m1 stop Chicago O'Hare Intl

7:58 pm - 5:14 pmPHL Philadelphia-DEN Denver Intl

23h 16m1 stop Grand Rapids Gerald R. Ford Intl

$253Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

11:30 pm - 5:10 amDEN Denver Intl-PHL Philadelphia

3h 40mnonstop

4:00 pm - 6:35 pmPHL Philadelphia-DEN Denver Intl

4h 35mnonstop

$321American Airlines

Tue, Oct 27 - Sat, Oct 31

2:54 pm - 8:33 pmDEN Denver Intl-PHL Philadelphia

3h 39mnonstop

4:00 pm - 6:35 pmPHL Philadelphia-DEN Denver Intl

4h 35mnonstop

$321American Airlines

Thu, Oct 29 - Sat, Oct 31

2:05 pm - 7:25 pmDEN Denver Intl-PHL Philadelphia

3h 20mnonstop

5:00 am - 7:20 amPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$321Southwest

Thu, Nov 12 - Mon, Nov 16

7:35 pm - 1:10 amDEN Denver Intl-PHL Philadelphia

3h 35mnonstop

5:30 am - 7:35 amPHL Philadelphia-DEN Denver Intl

4h 05mnonstop

$321Southwest

Thu, Oct 15 - Wed, Oct 21

2:00 pm - 7:31 pmDEN Denver Intl-PHL Philadelphia

3h 31mnonstop

9:55 am - 12:15 pmPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$321United Airlines

Sat, Dec 12 - Tue, Dec 15

6:10 pm - 11:41 pmDEN Denver Intl-PHL Philadelphia

3h 31mnonstop

9:55 am - 12:15 pmPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

$321United Airlines

Thu, Dec 10 - Mon, Dec 14

Cheap last minute flights

Enter your travel dates to find the best prices.

6:56 pm - 7:04 pmDEN Denver Intl-PHL Philadelphia

22h 08m1 stop Tampa

5:45 pm - 7:52 amPHL Philadelphia-DEN Denver Intl

16h 07m1 stop Orlando

$340Frontier

Mon, Sep 28 - Mon, Oct 5

6:56 pm - 12:36 pmDEN Denver Intl-PHL Philadelphia

15h 40m1 stop Tampa

11:59 am - 10:08 pmPHL Philadelphia-DEN Denver Intl

12h 09m1 stop Tampa

$356Frontier

Sat, Sep 26 - Sat, Oct 3

7:00 am - 12:41 pmDEN Denver Intl-PHL Philadelphia

3h 41mnonstop

7:55 pm - 10:26 pmPHL Philadelphia-DEN Denver Intl

4h 31mnonstop

$410American Airlines

Sat, Sep 26 - Sat, Oct 10

7:00 am - 12:41 pmDEN Denver Intl-PHL Philadelphia

3h 41mnonstop

11:24 am - 1:59 pmPHL Philadelphia-DEN Denver Intl

4h 35mnonstop

$410American Airlines

Tue, Sep 29 - Sat, Oct 10

6:10 pm - 11:55 pmDEN Denver Intl-PHL Philadelphia

3h 45mnonstop

6:00 am - 7:55 amPHL Philadelphia-DEN Denver Intl

3h 55mnonstop

$499Southwest

Tue, Sep 29 - Wed, Sep 30

5:46 pm - 11:29 pmDEN Denver Intl-PHL Philadelphia

3h 43mnonstop

3:52 pm - 5:59 pmPHL Philadelphia-DEN Denver Intl

4h 07mnonstop

$499United Airlines

Tue, Sep 29 - Sat, Oct 3

10:05 am - 3:48 pmDEN Denver Intl-PHL Philadelphia

3h 43mnonstop

8:00 am - 10:02 amPHL Philadelphia-DEN Denver Intl

4h 02mnonstop

$499United Airlines

Tue, Sep 29 - Wed, Oct 7

6:00 am - 2:44 pmCOS Colorado Springs-PHL Philadelphia

6h 44m1 stop Atlanta Hartsfield-Jackson

6:15 am - 12:14 pmPHL Philadelphia-COS Colorado Springs

7h 59m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$504Delta

Sat, Sep 26 - Tue, Sep 29

6:00 am - 2:44 pmCOS Colorado Springs-PHL Philadelphia

6h 44m1 stop Atlanta Hartsfield-Jackson

6:35 am - 5:27 pmPHL Philadelphia-COS Colorado Springs

12h 52m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$504Delta

Tue, Sep 29 - Tue, Oct 6

6:10 pm - 11:55 pmDEN Denver Intl-PHL Philadelphia

3h 45mnonstop

2:45 pm - 7:45 pmPHL Philadelphia-DEN Denver Intl

7h 00m1 stop Lambert-St Louis

$509Southwest

Tue, Sep 29 - Wed, Sep 30

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Frontier flights from Colorado to Philadelphia

Our best Frontier deals on Colorado to Philadelphia flight tickets

Frontier

Oct 10

DEN6:42 pmDenver Intl

10h 36m

1 stop

PHL7:18 amPhiladelphia

Oct 17

PHL9:09 pmPhiladelphia

13h 10m

1 stop

DEN8:19 amDenver Intl

$248

Frontier

Oct 16

DEN6:57 pmDenver Intl

10h 24m

1 stop

PHL7:21 amPhiladelphia

Oct 24

PHL6:00 amPhiladelphia

9h 47m

1 stop

DEN1:47 pmDenver Intl

$249

Frontier

Oct 16

DEN7:37 pmDenver Intl

3h 39m

PHL1:16 amPhiladelphia

Oct 19

PHL5:50 amPhiladelphia

4h 10m

DEN8:00 amDenver Intl

$250

American Airlines flights from Colorado to Philadelphia

Our best American Airlines deals on Colorado to Philadelphia flight tickets

American Airlines

Feb 26

EGE12:04 pmVail Eagle County

8h 48m

1 stop

PHL10:52 pmPhiladelphia

Feb 28

PHL5:43 amPhiladelphia

9h 00m

1 stop

EGE12:43 pmVail Eagle County

$361

American Airlines

Oct 19

DRO7:18 pmDurango La Plata County

8h 08m

1 stop

PHL5:26 amPhiladelphia

Oct 26

PHL5:00 amPhiladelphia

6h 58m

1 stop

DRO9:58 amDurango La Plata County

$368

American Airlines

Dec 11

COS1:01 pmColorado Springs

6h 35m

1 stop

PHL9:36 pmPhiladelphia

Dec 14

PHL5:52 amPhiladelphia

9h 12m

1 stop

COS1:04 pmColorado Springs

$370

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Wed 10/14

7:31 am-7:18 am

1 stop21h 47m

Philadelphia

Fri 10/16

6:40 am-6:52 pm

1 stop14h 12m

$248

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 11/19

6:00 am-8:20 pm

1 stop12h 20m

Philadelphia

Mon 11/23

6:10 am-7:12 pm

1 stop15h 02m

$248

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 10/16

7:37 pm-1:16 am

Nonstop3h 39m

Philadelphia

Fri 10/23

7:58 pm-5:14 pm

1 stop23h 16m

$252

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Fri 10/16

8:55 pm-8:04 pm

1 stop21h 09m

Philadelphia

Fri 10/23

7:58 pm-5:14 pm

1 stop23h 16m

$253

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Tue 10/27

11:30 pm-5:10 am

Nonstop3h 40m

Philadelphia

Sat 10/31

4:00 pm-6:35 pm

Nonstop4h 35m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 10/29

2:54 pm-8:33 pm

Nonstop3h 39m

Philadelphia

Sat 10/31

4:00 pm-6:35 pm

Nonstop4h 35m

$321

Quickest round-trip

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 11/12

2:05 pm-7:25 pm

Nonstop3h 20m

Philadelphia

Mon 11/16

5:00 am-7:20 am

Nonstop4h 20m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 10/15

7:35 pm-1:10 am

Nonstop3h 35m

Philadelphia

Wed 10/21

5:30 am-7:35 am

Nonstop4h 05m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Sat 12/12

2:00 pm-7:31 pm

Nonstop3h 31m

Philadelphia

Tue 12/15

9:55 am-12:15 pm

Nonstop4h 20m

$321

DenverPhiladelphia

DEN Denver Intl - PHL Philadelphia

DENPHL

Denver Intl

Thu 12/10

6:10 pm-11:41 pm

Nonstop3h 31m

Philadelphia

Mon 12/14

9:55 am-12:15 pm

Nonstop4h 20m

$321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado 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

Prices

Airlines

Other information

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Colorado is in February. Flight prices, which tend to average around $288, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Philadelphia, with average flight prices from Colorado averaging around $339.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Colorado to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $393. On the other hand, Monday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $568.

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 Colorado to Philadelphia in the evening for as low as $312. 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 in the afternoon when prices are around $492.

What is the cheapest Colorado to Philadelphia flight route?

Fly from Denver Intl to Philadelphia for the best Colorado - Philadelphia flight prices

How far in advance should I book a flight from Colorado to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $370 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Colorado for as low as $334 on momondo.

What cabin class options are available on Colorado to Philadelphia flights?

There are 4 cabin classes available to choose from on Colorado 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 Colorado to Philadelphia flights?

You could potentially save up to 3% on your flight if you consider stops on a Colorado to Philadelphia flight.

Cheap Colorado to Philadelphia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Philadelphia

Best Price Found	$147
Fastest flight time	3h 20m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from Colorado in the past 72 hours is $147. The best round-trip flight deal from Colorado to Philadelphia found on momondo in the last 72 hours is $248.

The fastest flight from Colorado to Philadelphia takes 3h 20m

Direct flights go from Colorado to Philadelphia every day.

There is 1 airport in Philadelphia. From Colorado there are direct flights to Philadelphia (PHL).

Search flight deals

Frequently asked questions about flying from Colorado to Philadelphia

When did momondo last update prices for flights from Colorado to Philadelphia Airport?
Prices for flights from Colorado to Philadelphia Airport refresh daily.
How many operators does momondo search for flights from Colorado to Philadelphia Airport?
As of September 2026, there are 6 operators available to choose from for flights from Colorado to Philadelphia Airport.
How old do you have to be to fly from Colorado 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 Colorado 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 Colorado to Philadelphia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Colorado to Philadelphia is Boeing 737-800 (27.45% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (22.33%), Boeing 737-800 Passenger/BBJ2 (winglets) (11.36%), and Boeing 737 (8.50%).

Best airlines flying from Colorado to Philadelphia

Compare and see reviews for airlines that fly from Colorado to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $122	Free Cancellation	Rating 5.6 2,579 reviews	Search Frontier flights
JetBlue	PriceFrom $138	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue flights
American Airlines	PriceFrom $139	Free Cancellation	Rating 7.0 12,075 reviews	Search American Airlines flights
Delta	PriceFrom $146	Free Cancellation	Rating 7.8 8,594 reviews	Search Delta flights
United Airlines	PriceFrom $236	Free Cancellation	Rating 7.4 10,230 reviews	Search United Airlines flights
Southwest	PriceFrom $246	Free Cancellation	Rating 8.0 4,196 reviews	Search Southwest flights

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

New Castle

North Wildwood

Chester

Vineland

Avalon

Lewes

Elkton

Pottstown

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Philadelphia?

Finding the right flight to Philadelphia from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Philadelphia quick and easy, saving you time and money.

Can I find flights from Colorado to Philadelphia with flexible booking policies on momondo?

Flights from Colorado to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Colorado to Philadelphia?

momondo helps you find the best flight between Colorado and Philadelphia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Colorado to Philadelphia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Colorado and alert you when they change.