What airlines fly to Colorado?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Colorado from Pennsylvania according to our data. American Airlines is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 8 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Pennsylvania to Colorado

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

As of September 2025, there are 568 flights per week flying from Pennsylvania to Colorado. The most common day of the week flights depart is Tue, with 17% of flights taking off on this day.

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

The number of flights available between Pennsylvania and Colorado is 81 per day as of September 2025. The most frequent departure time is 8:00AM, with 56% of daily flights leaving at noon.

How long is the flight from Pennsylvania to Colorado?

Flight times from Pennsylvania to Colorado vary, but if you’re flying out of Pittsburgh and flying into Denver (one of the most popular routes), then the duration is 3h 20m on average. Another popular route from Pennsylvania to Colorado is flying from Allentown to Denver, which will take roughly 3h 45m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Pennsylvania to Colorado refresh daily.

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

The number of operators available for flights from Pennsylvania to Colorado is 8 as of September 2025.

How old do you have to be to fly from Pennsylvania to Colorado?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania 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.

$57 Cheap Flights from Pennsylvania to Colorado in 2025/26

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Find the cheapest flights from Pennsylvania to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

1:00 pm - 3:24 pmJFK-DEN

4h 24mnonstop

12:36 am - 10:24 amDEN-JFK

7h 48m1 stop

$125Frontier

Find Deal

Fri, Oct 24 - Fri, Oct 24

1:00 pm - 3:24 pmJFK-DEN

4h 24mnonstop

9:09 am - 3:00 pmDEN-JFK

3h 51mnonstop

$130Frontier

Find Deal

Fri, Oct 24 - Wed, Oct 29

5:37 pm - 10:12 pmIAD-DEN

6h 35m1 stop

6:23 am - 1:35 pmDEN-IAD

5h 12m1 stop

$167American Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 3

3:25 pm - 7:34 pmDCA-DEN

6h 09m1 stop

4:00 pm - 11:59 pmDEN-DCA

5h 59m1 stop

$167American Airlines

Find Deal

Tue, Oct 21 - Mon, Oct 27

5:18 pm - 7:29 pmIAD-DEN

4h 11mnonstop

8:00 am - 1:18 pmDEN-IAD

3h 18mnonstop

$177United Airlines

Find Deal

Sat, Nov 8 - Wed, Nov 12

10:09 pm - 11:57 pmIAD-DEN

3h 48mnonstop

8:01 am - 1:28 pmDEN-IAD

3h 27mnonstop

$195United Airlines

Find Deal

Wed, Oct 15 - Sat, Oct 18

7:40 am - 9:30 amIAD-DEN

3h 50mnonstop

6:10 pm - 11:30 pmDEN-IAD

3h 20mnonstop

$208Southwest

Find Deal

Wed, Oct 15 - Fri, Oct 17

4:55 pm - 7:05 pmPHL-DEN

4h 10mnonstop

8:15 am - 5:35 pmDEN-PHL

7h 20m2 stops

$213Southwest

Find Deal

Tue, Nov 18 - Wed, Dec 3

6:42 pm - 11:04 pmEWR-DEN

6h 22m1 stop

6:05 am - 2:13 pmDEN-EWR

6h 08m1 stop

$237Delta

Find Deal

Fri, Oct 24 - Wed, Oct 29

1:15 pm - 5:51 pmEWR-DEN

6h 36m1 stop

12:55 am - 8:50 amDEN-EWR

5h 55m1 stop

$247Delta

Find Deal

Wed, Nov 19 - Wed, Nov 26

Frontier flights from Pennsylvania to Colorado

Our best Frontier deals on Pennsylvania to Colorado flight tickets

Frontier

Oct 24

JFK1:00 pmNew York John F Kennedy Intl

4h 24m

DEN3:24 pmDenver Intl

Oct 24

DEN12:36 amDenver Intl

7h 48m

1 stop

JFK10:24 amNew York John F Kennedy Intl

$125

Find similar

Frontier

Oct 24

JFK1:00 pmNew York John F Kennedy Intl

4h 24m

DEN3:24 pmDenver Intl

Oct 29

DEN9:09 amDenver Intl

3h 51m

JFK3:00 pmNew York John F Kennedy Intl

$130

Find similar

Frontier

Sep 24

LGA10:59 pmNew York LaGuardia

11h 31m

1 stop

DEN8:30 amDenver Intl

Sep 25

DEN4:14 pmDenver Intl

3h 57m

LGA10:11 pmNew York LaGuardia

$131

Find similar

United Airlines flights from Pennsylvania to Colorado

Our best United Airlines deals on Pennsylvania to Colorado flight tickets

United Airlines

Nov 8

IAD5:18 pmWashington, D.C. Dulles Intl

4h 11m

DEN7:29 pmDenver Intl

Nov 12

DEN8:00 amDenver Intl

3h 18m

IAD1:18 pmWashington, D.C. Dulles Intl

$177

Find similar

United Airlines

Oct 15

IAD10:09 pmWashington, D.C. Dulles Intl

3h 48m

DEN11:57 pmDenver Intl

Oct 18

DEN8:01 amDenver Intl

3h 27m

IAD1:28 pmWashington, D.C. Dulles Intl

$195

Find similar

United Airlines

Nov 12

IAD10:10 pmWashington, D.C. Dulles Intl

4h 05m

DEN12:15 amDenver Intl

Nov 17

DEN11:59 pmDenver Intl

3h 17m

IAD5:16 amWashington, D.C. Dulles Intl

$197

Find similar

Fly from

Fly to

Route

Depart

Return

Price

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Fri 10/24

1:00 pm-3:24 pm

Nonstop4h 24m

Denver Intl

Fri 10/24

12:36 am-10:24 am

1 stop7h 48m

$125

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Fri 10/24

1:00 pm-3:24 pm

Nonstop4h 24m

Denver Intl

Wed 10/29

9:09 am-3:00 pm

Nonstop3h 51m

$130

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 11/1

5:37 pm-10:12 pm

1 stop6h 35m

Denver Intl

Mon 11/3

6:23 am-1:35 pm

1 stop5h 12m

$167

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 10/21

3:25 pm-7:34 pm

1 stop6h 09m

Denver Intl

Mon 10/27

4:00 pm-11:59 pm

1 stop5h 59m

$167

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 11/8

5:18 pm-7:29 pm

Nonstop4h 11m

Denver Intl

Wed 11/12

8:00 am-1:18 pm

Nonstop3h 18m

$177

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 10/15

10:09 pm-11:57 pm

Nonstop3h 48m

Denver Intl

Sat 10/18

8:01 am-1:28 pm

Nonstop3h 27m

$195

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 10/15

7:40 am-9:30 am

Nonstop3h 50m

Denver Intl

Fri 10/17

6:10 pm-11:30 pm

Nonstop3h 20m

$208

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 11/18

4:55 pm-7:05 pm

Nonstop4h 10m

Denver Intl

Wed 12/3

8:15 am-5:35 pm

2 stops7h 20m

$213

NewarkDenver

EWR - DEN

EWRDEN

Newark

Fri 10/24

6:42 pm-11:04 pm

1 stop6h 22m

Denver Intl

Wed 10/29

6:05 am-2:13 pm

1 stop6h 08m

$237

NewarkDenver

EWR - DEN

EWRDEN

Newark

Wed 11/19

1:15 pm-5:51 pm

1 stop6h 36m

Denver Intl

Wed 11/26

12:55 am-8:50 am

1 stop5h 55m

$247

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Pennsylvania 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 August is, on average, the cheapest month to fly to Colorado from Pennsylvania, with most prices found around $278. The month of October is another great option to travel to Colorado, with average flight prices from Pennsylvania averaging around $279.

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

The cheapest day to depart from Pennsylvania to Colorado is on a Thursday when prices can be found for as low as $345. On the other hand, Sunday is the most expensive day to depart from Pennsylvania because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $401.

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 $282. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $446 per ticket.

What is the cheapest Pennsylvania to Colorado flight route?

Fly from Allentown-Bethlehem to Denver Intl for the best Pennsylvania - 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 Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $314 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Pennsylvania for as low as $264 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between Pennsylvania to Colorado.

Cheap Pennsylvania to Colorado flight deals and tips

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

Best Price Found	$75
Fastest flight time	3h 20m
Direct flights	Every day
Airports in Colorado	1 airport

The best one-way flight to Colorado from Pennsylvania in the past 72 hours is $75. The best round-trip flight deal from Pennsylvania to Colorado found on momondo in the last 72 hours is $153.

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

Direct flights go from Pennsylvania to Colorado every day.

There is 1 airport near Colorado: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from Pennsylvania to Colorado?
Prices for flights from Pennsylvania to Colorado refresh daily.
How many operators does momondo search for flights from Pennsylvania to Colorado?
The number of operators available for flights from Pennsylvania to Colorado is 8 as of September 2025.
How old do you have to be to fly from Pennsylvania to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania 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 Pennsylvania to Colorado?
Based on momondo bookings for flights between Pennsylvania and Colorado, the leading plane model is Boeing 737-800, making up 19.13% of the total bookings. Other popular models include Boeing 737 MAX 8 with 16.30%, Boeing 737-800 Passenger/BBJ2 (winglets) with 11.57%, and Airbus A320-100/200 with 10.82%.

Best airlines flying from Pennsylvania to Colorado

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $44	Free Cancellation	Rating 5.8 3,174 reviews	Search Frontier flights
Allegiant Air	PriceFrom $106	Free Cancellation	Rating 7.2 699 reviews	Search Allegiant Air flights
JetBlue	PriceFrom $130	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Delta	PriceFrom $134	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
American Airlines	PriceFrom $168	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $193	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $195	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
Sun Country Air	PriceFrom $251	Free Cancellation	Rating 6.9 330 reviews	Search Sun Country Air flights

Why use momondo?

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

It is quick and easy to find Pennsylvania to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

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

Yes. momondo allows you to filter the results for Pennsylvania to Colorado flights to just show those with flexible booking policies.

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

Once all potential Pennsylvania to Colorado flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Colorado from Pennsylvania 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 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.

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Popular cities in Colorado

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Cheap flights from Pennsylvania to Colorado from $57

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Colorado departing on 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Pennsylvania to Colorado

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

Frontier flights from Pennsylvania to Colorado

Our best Frontier deals on Pennsylvania to Colorado flight tickets

United Airlines flights from Pennsylvania to Colorado

Our best United Airlines deals on Pennsylvania to Colorado flight tickets

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Use the filters below to find and compare flights from Pennsylvania to Colorado that are best for you.

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How to get the cheapest flight ticket from Pennsylvania 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 August is, on average, the cheapest month to fly to Colorado from Pennsylvania, with most prices found around $278. The month of October is another great option to travel to Colorado, with average flight prices from Pennsylvania averaging around $279.

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?

The cheapest time of day to fly to Colorado is at noon when flights can be purchased for as low as $282. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $446 per ticket.

What is the cheapest Pennsylvania to Colorado flight route?

Fly from Allentown-Bethlehem to Denver Intl for the best Pennsylvania - Colorado flight prices

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

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

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

No. A direct flight is the cheapest option for a flight between Pennsylvania to Colorado.

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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Pennsylvania to Colorado

What airlines fly to Colorado?

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

The number of flights available between Pennsylvania and Colorado is 81 per day as of September 2025. The most frequent departure time is 8:00AM, with 56% of daily flights leaving at noon.

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

As of September 2025, there are 568 flights per week flying from Pennsylvania to Colorado. The most common day of the week flights depart is Tue, with 17% of flights taking off on this day.

How long is the flight from Pennsylvania to Colorado?

Cheap Pennsylvania to Colorado flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

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

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

How old do you have to be to fly from Pennsylvania to Colorado?

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

What is the most popular plane model from Pennsylvania to Colorado?

Best airlines flying from Pennsylvania to Colorado

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

Why use momondo?

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

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

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

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

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