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Cheap flights from Philadelphia to Colorado from $91

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 3/9. 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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Find the cheapest flights from Philadelphia to Colorado

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:53 pm - 10:59 pm
PHL
-
DEN
9h 06m1 stop
Frontier Logo
12:05 am - 10:46 am
DEN
-
PHL
8h 41m1 stop
$139Frontier
sáb., ene. 10 - vie., ene. 16
Frontier Logo
7:04 pm - 12:19 pm
PHL
-
DEN
19h 15m1 stop
Frontier Logo
6:00 am - 7:13 pm
DEN
-
PHL
11h 13m1 stop
$142Frontier
lun., ene. 26 - sáb., ene. 31
United Airlines Logo
8:00 am - 12:33 pm
PHL
-
EGE
6h 33m1 stop
United Airlines Logo
3:25 pm - 11:30 pm
EGE
-
PHL
6h 05m1 stop
$217United Airlines
mar., mar. 17 - mar., mar. 24
United Airlines Logo
10:35 am - 4:59 pm
PHL
-
EGE
8h 24m2 stops
United Airlines Logo
3:25 pm - 11:30 pm
EGE
-
PHL
6h 05m1 stop
$222United Airlines
mar., mar. 17 - mar., mar. 24
Delta Logo
6:55 am - 2:11 pm
PHL
-
EGE
9h 16m1 stop
Delta Logo
3:25 pm - 12:49 am
EGE
-
PHL
7h 24m1 stop
$237Delta
mar., mar. 17 - mar., mar. 24
American Airlines Logo
6:21 am - 12:16 pm
PHL
-
GJT
7h 55m1 stop
American Airlines Logo
11:56 am - 11:51 pm
GJT
-
PHL
9h 55m1 stop
$249American Airlines
mar., ene. 13 - sáb., ene. 17
Delta Logo
5:40 am - 1:08 pm
PHL
-
MTJ
9h 28m1 stop
Delta Logo
2:05 pm - 12:21 am
MTJ
-
PHL
8h 16m1 stop
$249Delta
mié., ene. 7 - mar., ene. 13
American Airlines Logo
10:30 am - 6:19 pm
PHL
-
GJT
9h 49m1 stop
American Airlines Logo
6:00 am - 7:38 pm
GJT
-
PHL
11h 38m2 stops
$254American Airlines
mar., ene. 13 - sáb., ene. 17
Southwest Logo
5:40 am - 11:45 am
PHL
-
HDN
8h 05m2 stops
Southwest Logo
8:25 am - 9:55 pm
HDN
-
PHL
11h 30m2 stops
$259Southwest
mar., mar. 3 - mar., mar. 10
Southwest Logo
5:00 am - 11:35 am
PHL
-
HDN
8h 35m1 stop
Southwest Logo
5:10 pm - 11:20 am
HDN
-
PHL
16h 10m2 stops
$260Southwest
lun., feb. 23 - sáb., feb. 28

Frontier flights from Philadelphia to Colorado

Our best Frontier deals on Philadelphia to Colorado flight tickets
Frontier
Jan 8
PHL4:07 pmPhiladelphia
9h 17m
1 stop
DEN11:24 pmDenver Intl
Jan 12
DEN12:05 amDenver Intl
9h 09m
1 stop
PHL11:14 amPhiladelphia
$139
Find similar
Frontier
Jan 26
PHL7:04 pmPhiladelphia
19h 15m
1 stop
DEN12:19 pmDenver Intl
Jan 31
DEN6:00 amDenver Intl
11h 13m
1 stop
PHL7:13 pmPhiladelphia
$142
Find similar
Frontier
Jan 10
PHL3:53 pmPhiladelphia
9h 06m
1 stop
DEN10:59 pmDenver Intl
Jan 12
DEN12:05 amDenver Intl
9h 09m
1 stop
PHL11:14 amPhiladelphia
$145
Find similar

Delta flights from Philadelphia to Colorado

Our best Delta deals on Philadelphia to Colorado flight tickets
Delta
Dec 25
PHL6:05 amPhiladelphia
6h 24m
1 stop
DEN10:29 amDenver Intl
Dec 31
DEN7:05 amDenver Intl
7h 33m
1 stop
PHL4:38 pmPhiladelphia
$237
Find similar
Delta
Jan 7
PHL5:40 amPhiladelphia
9h 28m
1 stop
MTJ1:08 pmMontrose County
Jan 13
MTJ2:05 pmMontrose County
8h 16m
1 stop
PHL12:21 amPhiladelphia
$249
Find similar
Delta
Mar 4
PHL6:00 amPhiladelphia
10h 43m
2 stops
HDN2:43 pmHayden Yampa Valley
Mar 10
HDN2:02 pmHayden Yampa Valley
6h 52m
1 stop
PHL10:54 pmPhiladelphia
$254
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Colorado 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 diciembre 15, 2025.
Use the filters below to find and compare flights from Philadelphia to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

sáb. 1/10

3:53 pm-10:59 pm

1 stop9h 06m

Denver Intl

vie. 1/16

12:05 am-10:46 am

1 stop8h 41m

$139

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

lun. 1/26

7:04 pm-12:19 pm

1 stop19h 15m

Denver Intl

sáb. 1/31

6:00 am-7:13 pm

1 stop11h 13m

$142

PhiladelphiaVail

PHL - EGE

PHLEGE

Philadelphia

mar. 3/17

8:00 am-12:33 pm

1 stop6h 33m

Vail Eagle County

mar. 3/24

3:25 pm-11:30 pm

1 stop6h 05m

$217

PhiladelphiaVail

PHL - EGE

PHLEGE

Philadelphia

mar. 3/17

10:35 am-4:59 pm

2 stops8h 24m

Vail Eagle County

mar. 3/24

3:25 pm-11:30 pm

1 stop6h 05m

$222

PhiladelphiaVail

PHL - EGE

PHLEGE

Philadelphia

mar. 3/17

6:55 am-2:11 pm

1 stop9h 16m

Vail Eagle County

mar. 3/24

3:25 pm-12:49 am

1 stop7h 24m

$237

PhiladelphiaGrand Junction

PHL - GJT

PHLGJT

Philadelphia

mar. 1/13

6:21 am-12:16 pm

1 stop7h 55m

Grand Junction Regnl

sáb. 1/17

11:56 am-11:51 pm

1 stop9h 55m

$249

PhiladelphiaMontrose

PHL - MTJ

PHLMTJ

Philadelphia

mié. 1/7

5:40 am-1:08 pm

1 stop9h 28m

Montrose County

mar. 1/13

2:05 pm-12:21 am

1 stop8h 16m

$249

PhiladelphiaGrand Junction

PHL - GJT

PHLGJT

Philadelphia

mar. 1/13

10:30 am-6:19 pm

1 stop9h 49m

Grand Junction Regnl

sáb. 1/17

6:00 am-7:38 pm

2 stops11h 38m

$254

PhiladelphiaHayden

PHL - HDN

PHLHDN

Philadelphia

mar. 3/3

5:40 am-11:45 am

2 stops8h 05m

Hayden Yampa Valley

mar. 3/10

8:25 am-9:55 pm

2 stops11h 30m

$259

PhiladelphiaHayden

PHL - HDN

PHLHDN

Philadelphia

lun. 2/23

5:00 am-11:35 am

1 stop8h 35m

Hayden Yampa Valley

sáb. 2/28

5:10 pm-11:20 am

2 stops16h 10m

$260

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Colorado from

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

What is the cheapest month to fly to Colorado?

The month of July is, on average, the cheapest month to fly to Colorado from Philadelphia, with most prices found around $278. The month of August is another great option to travel to Colorado, with average flight prices from Philadelphia averaging around $278.

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

The cheapest day to depart from Philadelphia to Colorado is on a Friday when prices can be found for as low as $342. 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 $397.

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

The cheapest time of day to fly to Colorado is at noon when flights can be purchased for as low as $277. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $436 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 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 $317 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 $255 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 2% 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

$169

Fastest flight time

4h 00m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Colorado

87 airports
The best one-way flight to Colorado from Philadelphia in the past 72 hours is $169. The best round-trip flight deal from Philadelphia to Colorado found on momondo in the last 72 hours is $273.
The fastest flight from Philadelphia to Colorado takes 4h 00m
Direct flights go from Philadelphia to Colorado on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
There are 87 airports in Colorado. From Philadelphia there are direct flights to Denver Intl (DEN).
Search flight deals

  • 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?

  • 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?

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
Allegiant AirPriceFrom $106Free CancellationRating
7.2
700 reviews
Search Allegiant Air flights
FrontierPriceFrom $117Free CancellationRating
5.8
3,080 reviews
Search Frontier flights
DeltaPriceFrom $134Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Sun Country AirPriceFrom $177Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
SouthwestPriceFrom $187Free CancellationRating
7.9
4,249 reviews
Search Southwest flights
United AirlinesPriceFrom $190Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $201Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
JetBluePriceFrom $207Free CancellationRating
7.2
2,895 reviews
Search JetBlue 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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