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

108 flights are operational weekly from Philadelphia to Colorado as of August 2026. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.

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

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

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

The number of flights available between Philadelphia and Colorado is 15 per day as of August 2026. The most frequent departure time is 8:00PM, with 42% of daily flights leaving at noon.

What airlines fly to Colorado?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Colorado from Philadelphia according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 6 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Philadelphia Airport to Colorado are updated daily.

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

The number of operators available for flights from Philadelphia Airport to Colorado is 6 as of August 2026.

How old do you have to be to fly from Philadelphia Airport to Colorado?

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 Philadelphia Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$134 Cheap Flights from Philadelphia to Colorado in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Colorado

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:40 pm - 9:03 pmPHL Philadelphia-DEN Denver Intl

29h 23m1 stop Atlanta Hartsfield-Jackson

9:19 pm - 7:16 amDEN Denver Intl-PHL Philadelphia

31h 57m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson

$220Frontier

Mon, Sep 21 - Thu, Sep 24

5:50 am - 8:00 amPHL Philadelphia-DEN Denver Intl

4h 10mnonstop

6:12 pm - 11:50 pmDEN Denver Intl-PHL Philadelphia

3h 38mnonstop

$220Frontier

Mon, Oct 12 - Wed, Oct 14

6:10 pm - 9:29 pmPHL Philadelphia-DEN Denver Intl

29h 19m1 stop Des Moines

7:10 pm - 7:16 amDEN Denver Intl-PHL Philadelphia

10h 06m1 stop Atlanta Hartsfield-Jackson

$229Multiple Airlines

Thu, Sep 17 - Tue, Sep 22

6:10 pm - 9:29 pmPHL Philadelphia-DEN Denver Intl

29h 19m1 stop Des Moines

7:10 pm - 7:16 amDEN Denver Intl-PHL Philadelphia

10h 06m1 stop Atlanta Hartsfield-Jackson

$229Multiple Airlines

Sun, Sep 20 - Tue, Sep 22

9:23 am - 11:33 amPHL Philadelphia-DEN Denver Intl

4h 10mnonstop

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

3h 41mnonstop

$321American Airlines

Sat, Sep 19 - Sat, Sep 26

9:23 am - 11:33 amPHL Philadelphia-DEN Denver Intl

4h 10mnonstop

1:05 pm - 6:55 pmDEN Denver Intl-PHL Philadelphia

3h 50mnonstop

$321American Airlines

Wed, Sep 30 - Thu, Oct 1

7:45 am - 10:05 amPHL Philadelphia-DEN Denver Intl

4h 20mnonstop

6:08 pm - 11:39 pmDEN Denver Intl-PHL Philadelphia

3h 31mnonstop

$321United Airlines

Mon, Nov 2 - Sat, Nov 7

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

4h 20mnonstop

5:25 pm - 10:46 pmDEN Denver Intl-PHL Philadelphia

3h 21mnonstop

$321United Airlines

Sat, Dec 5 - Wed, Dec 9

5:10 am - 7:25 amPHL Philadelphia-DEN Denver Intl

4h 15mnonstop

11:35 am - 5:00 pmDEN Denver Intl-PHL Philadelphia

3h 25mnonstop

$321Southwest

Sat, Jan 30 - Mon, Feb 1

5:20 am - 7:35 amPHL Philadelphia-DEN Denver Intl

4h 15mnonstop

11:40 am - 5:10 pmDEN Denver Intl-PHL Philadelphia

3h 30mnonstop

$321Southwest

Tue, Feb 9 - Sat, Feb 13

Cheap last minute flights

Enter your travel dates to find the best prices.

4:45 pm - 10:10 pmPHL Philadelphia-DEN Denver Intl

7h 25m1 stop Atlanta Hartsfield-Jackson

6:30 am - 3:29 pmDEN Denver Intl-PHL Philadelphia

6h 59m1 stop Detroit Metropolitan Wayne County

$252Frontier

Wed, Sep 2 - Thu, Sep 3

8:37 pm - 11:04 pmPHL Philadelphia-DEN Denver Intl

4h 27mnonstop

10:44 am - 11:18 pmDEN Denver Intl-PHL Philadelphia

10h 34m1 stop Atlanta Hartsfield-Jackson

$253Frontier

Tue, Sep 1 - Sat, Oct 3

12:26 pm - 10:28 pmPHL Philadelphia-COS Colorado Springs

12h 02m2 stops Detroit Metropolitan Wayne County Salt Lake City

1:25 pm - 9:53 pmCOS Colorado Springs-PHL Philadelphia

6h 28m1 stop Atlanta Hartsfield-Jackson

$356Delta

Sat, Sep 5 - Fri, Sep 11

8:00 am - 10:05 amPHL Philadelphia-DEN Denver Intl

4h 05mnonstop

7:45 am - 5:54 pmDEN Denver Intl-PHL Philadelphia

8h 09m1 stop Chicago O'Hare Intl

$373United Airlines

Sat, Sep 5 - Wed, Sep 9

2:15 pm - 9:20 pmPHL Philadelphia-DEN Denver Intl

9h 05m1 stop Orlando

11:15 am - 9:00 pmDEN Denver Intl-PHL Philadelphia

7h 45m2 stops Memphis Chicago Midway

$388Southwest

Sat, Sep 5 - Wed, Sep 9

5:01 pm - 9:54 pmPHL Philadelphia-COS Colorado Springs

6h 53m1 stop Chicago O'Hare Intl

3:09 pm - 11:44 pmCOS Colorado Springs-PHL Philadelphia

6h 35m1 stop Denver Intl

$415United Airlines

Wed, Sep 2 - Sat, Sep 5

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

8h 00m1 stop Atlanta Hartsfield-Jackson

11:27 am - 11:26 pmCOS Colorado Springs-PHL Philadelphia

9h 59m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

$420Delta

Wed, Sep 2 - Sat, Sep 5

6:13 pm - 8:26 pmPHL Philadelphia-DEN Denver Intl

4h 13mnonstop

8:30 am - 2:11 pmDEN Denver Intl-PHL Philadelphia

3h 41mnonstop

$421American Airlines

Sat, Sep 5 - Wed, Sep 9

6:00 pm - 8:13 pmPHL Philadelphia-DEN Denver Intl

4h 13mnonstop

10:31 am - 4:19 pmDEN Denver Intl-PHL Philadelphia

3h 48mnonstop

$421American Airlines

Tue, Sep 1 - Wed, Sep 30

12:35 pm - 2:25 pmPHL Philadelphia-DEN Denver Intl

3h 50mnonstop

3:05 pm - 8:40 pmDEN Denver Intl-PHL Philadelphia

3h 35mnonstop

$421Southwest

Wed, Sep 2 - Wed, Sep 9

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Frontier flights from Philadelphia to Colorado

Our best Frontier deals on Philadelphia to Colorado flight tickets

Frontier

Sep 22

PHL8:41 amPhiladelphia

14h 22m

1 stop

DEN9:03 pmDenver Intl

Sep 26

DEN10:44 amDenver Intl

10h 34m

1 stop

PHL11:18 pmPhiladelphia

$220

Frontier

Oct 14

PHL12:35 pmPhiladelphia

10h 56m

1 stop

DEN9:31 pmDenver Intl

Oct 16

DEN6:57 pmDenver Intl

10h 24m

1 stop

PHL7:21 amPhiladelphia

$221

Frontier

Oct 16

PHL5:22 pmPhiladelphia

16h 44m

1 stop

DEN8:06 amDenver Intl

Oct 19

DEN1:18 pmDenver Intl

8h 09m

1 stop

PHL11:27 pmPhiladelphia

$222

Southwest flights from Philadelphia to Colorado

Our best Southwest deals on Philadelphia to Colorado flight tickets

Southwest

Oct 24

PHL11:40 amPhiladelphia

7h 05m

2 stops

COS4:45 pmColorado Springs

Oct 28

COS11:45 amColorado Springs

7h 45m

2 stops

PHL9:30 pmPhiladelphia

$367

Southwest

Oct 26

PHL3:20 pmPhiladelphia

8h 40m

2 stops

COS10:00 pmColorado Springs

Oct 31

COS6:00 amColorado Springs

10h 05m

2 stops

PHL6:05 pmPhiladelphia

$378

Southwest

Feb 25

PHL11:15 amPhiladelphia

11h 00m

2 stops

MTJ8:15 pmMontrose County

Mar 3

MTJ9:10 amMontrose County

10h 05m

2 stops

PHL9:15 pmPhiladelphia

$379

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Mon 9/21

5:40 pm-9:03 pm

1 stop29h 23m

Denver Intl

Thu 9/24

9:19 pm-7:16 am

2 stops31h 57m

$220

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Mon 10/12

5:50 am-8:00 am

Nonstop4h 10m

Denver Intl

Wed 10/14

6:12 pm-11:50 pm

Nonstop3h 38m

$220

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Thu 9/17

6:10 pm-9:29 pm

1 stop29h 19m

Denver Intl

Tue 9/22

7:10 pm-7:16 am

1 stop10h 06m

$229

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sun 9/20

6:10 pm-9:29 pm

1 stop29h 19m

Denver Intl

Tue 9/22

7:10 pm-7:16 am

1 stop10h 06m

$229

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 9/19

9:23 am-11:33 am

Nonstop4h 10m

Denver Intl

Sat 9/26

7:00 am-12:41 pm

Nonstop3h 41m

$321

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Wed 9/30

9:23 am-11:33 am

Nonstop4h 10m

Denver Intl

Thu 10/1

1:05 pm-6:55 pm

Nonstop3h 50m

$321

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Mon 11/2

7:45 am-10:05 am

Nonstop4h 20m

Denver Intl

Sat 11/7

6:08 pm-11:39 pm

Nonstop3h 31m

$321

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 12/5

9:55 am-12:15 pm

Nonstop4h 20m

Denver Intl

Wed 12/9

5:25 pm-10:46 pm

Nonstop3h 21m

$321

Quickest round-trip

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 1/30

5:10 am-7:25 am

Nonstop4h 15m

Denver Intl

Mon 2/1

11:35 am-5:00 pm

Nonstop3h 25m

$321

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Tue 2/9

5:20 am-7:35 am

Nonstop4h 15m

Denver Intl

Sat 2/13

11:40 am-5:10 pm

Nonstop3h 30m

$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 Philadelphia to Colorado

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 Colorado?

The month of April is, on average, the cheapest month to fly to Colorado from Philadelphia, with most prices found around $338. The month of January is another great option to travel to Colorado, with average flight prices from Philadelphia averaging around $338.

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

The cheapest day to depart from Philadelphia to Colorado is on a Saturday when prices can be found for as low as $390. On the other hand, Sunday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $465.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $276. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $455 per ticket.

What is the cheapest Philadelphia to Colorado flight route?

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

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

You are more likely to see cheaper flights to Colorado from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $370 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Philadelphia for as low as $305 on momondo.

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

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

You could potentially save up to 12% on your flight if you consider stops on a Philadelphia to Colorado flight.

Cheap Philadelphia to Colorado flight deals and tips

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

Best Price Found	$134
Fastest flight time	3h 50m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from Philadelphia in the past 72 hours is $134. The best round-trip flight deal from Philadelphia to Colorado found on momondo in the last 72 hours is $220.

The fastest flight from Philadelphia to Colorado takes 3h 50m

Direct flights go from Philadelphia to Colorado every day.

There are 87 airports in Colorado. From Philadelphia there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Philadelphia to Colorado

When did momondo last update prices for flights from Philadelphia Airport to Colorado?
Prices for flights from Philadelphia Airport to Colorado are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Colorado?
The number of operators available for flights from Philadelphia Airport to Colorado is 6 as of August 2026.
How old do you have to be to fly from Philadelphia Airport to Colorado?
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 Philadelphia Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Philadelphia to Colorado?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Philadelphia to Colorado is Boeing 737-800 (25.70% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (17.92%), Boeing 737-800 Passenger/BBJ2 (winglets) (11.29%), and Airbus A320neo (10.26%).

Best airlines flying from Philadelphia to Colorado

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $97	Free Cancellation	Rating 5.6 2,635 reviews	Search Frontier flights
Southwest	PriceFrom $187	Free Cancellation	Rating 8.0 4,199 reviews	Search Southwest flights
United Airlines	PriceFrom $198	Free Cancellation	Rating 7.4 10,148 reviews	Search United Airlines flights
JetBlue	PriceFrom $220	Free Cancellation	Rating 7.1 3,034 reviews	Search JetBlue flights
American Airlines	PriceFrom $222	Free Cancellation	Rating 7.1 12,021 reviews	Search American Airlines flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.8 8,537 reviews	Search Delta flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Colorado. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Colorado from Philadelphia with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Colorado from Philadelphia.

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

If you are not ready to book a flight from Philadelphia to Colorado now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Colorado and let you know when they change.

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Cheap flights from Philadelphia to Colorado from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Colorado departing on 10/21. 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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Frontier flights from Philadelphia to Colorado

Our best Frontier deals on Philadelphia to Colorado flight tickets

Southwest flights from Philadelphia to Colorado

Our best Southwest deals on Philadelphia to Colorado flight tickets

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See travel insights to Colorado from

How to get the cheapest flight ticket from Philadelphia to Colorado

What is the cheapest month to fly to Colorado?

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

What is the cheapest time of day to depart on your flight to Colorado?

What is the cheapest Philadelphia to Colorado flight route?

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

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

Can stopping save me money on Philadelphia to Colorado flights?

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

What airlines fly to Colorado?

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

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

Cheap Philadelphia to Colorado flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

Frequently asked questions about flying from Philadelphia to Colorado

Best airlines flying from Philadelphia to Colorado

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

Why use momondo?

An easier way to manage your Colorado 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo

Philadelphia flight routes

According to popular flight searches on momondo this year

Colorado flight routes

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