What is the cheapest airline that flies from Pennsylvania to Denver Intl?

Allegiant Air, Southwest, and JetBlue are the most popular carriers operating from Pennsylvania to Denver Intl

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

467 flights are operational weekly from Pennsylvania to Denver as of August 2026. The most popular departure day for this route is Sun, with 23% of flights per week taking off on this day.

How long does it take to fly to Denver?

Flight times vary depending on what airport in Pennsylvania you fly out of and what airport in Denver you fly into. For example, flying from Pittsburgh to Denver takes 3h 15m on average. On the other hand, flying from Allentown to Denver takes 3h 46m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Denver?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Denver from Pennsylvania according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 7 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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

66 flights are operational daily from Pennsylvania to Denver as of August 2026. The most popular departure time for this route is 4:00PM, with 45% of flights per day taking off in the afternoon.

When did momondo last update prices for flights from Pennsylvania to Denver Intl Airport?

Prices for flights from Pennsylvania to Denver Intl Airport are updated daily.

How many operators does momondo search for flights from Pennsylvania to Denver Intl Airport?

The number of operators available for flights from Pennsylvania to Denver Intl Airport is 7 as of August 2026.

How old do you have to be to fly from Pennsylvania to Denver Intl 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 Pennsylvania to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The required travel and health documents for your Denver Intl 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 Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$51 Cheap Flights from Pennsylvania to Denver in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pennsylvania to Denver

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7:30 am - 9:22 amABE Allentown-Bethlehem-DEN Denver Intl

3h 52mnonstop

9:36 am - 3:08 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 32mnonstop

$102Allegiant Air

Mon, Aug 31 - Fri, Sep 11

7:30 am - 9:22 amABE Allentown-Bethlehem-DEN Denver Intl

3h 52mnonstop

9:36 am - 3:08 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 32mnonstop

$112Allegiant Air

Mon, Aug 31 - Fri, Sep 11

6:30 am - 8:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

11:48 pm - 10:28 pmDEN Denver Intl-ABE Allentown-Bethlehem

44h 40m2 stops Atlanta Hartsfield-Jackson Orlando

$193Multiple Airlines

Mon, Oct 5 - Wed, Oct 14

7:00 am - 8:52 amABE Allentown-Bethlehem-DEN Denver Intl

3h 52mnonstop

8:31 am - 9:07 pmDEN Denver Intl-ABE Allentown-Bethlehem

10h 36m1 stop Nashville Intl

$197Multiple Airlines

Mon, Aug 24 - Thu, Aug 27

2:10 pm - 4:05 pmPHL Philadelphia-DEN Denver Intl

3h 55mnonstop

6:30 am - 2:20 pmDEN Denver Intl-PHL Philadelphia

5h 50m1 stop Chicago Midway

$228Southwest

Sat, Sep 19 - Tue, Sep 22

5:25 am - 7:30 amPHL Philadelphia-DEN Denver Intl

4h 05mnonstop

6:35 am - 3:25 pmDEN Denver Intl-PHL Philadelphia

6h 50m1 stop Lambert-St Louis

$228Southwest

Sat, Oct 3 - Wed, Oct 7

5:32 pm - 8:04 amPHL Philadelphia-DEN Denver Intl

16h 32m1 stop Atlanta Hartsfield-Jackson

11:59 pm - 5:36 amDEN Denver Intl-PHL Philadelphia

3h 37mnonstop

$228Frontier

Sun, Oct 4 - Sat, Oct 10

12:40 pm - 9:03 pmPHL Philadelphia-DEN Denver Intl

10h 23m1 stop Atlanta Hartsfield-Jackson

11:59 pm - 5:36 amDEN Denver Intl-PHL Philadelphia

3h 37mnonstop

$228Frontier

Wed, Oct 7 - Fri, Oct 16

6:13 pm - 10:32 pmPHL Philadelphia-DEN Denver Intl

6h 19m1 stop Atlanta Hartsfield-Jackson

8:00 am - 6:18 pmDEN Denver Intl-PHL Philadelphia

8h 18m1 stop Atlanta Hartsfield-Jackson

$237Delta

Sat, Oct 17 - Wed, Oct 21

3:33 pm - 8:22 pmPHL Philadelphia-DEN Denver Intl

6h 49m1 stop Atlanta Hartsfield-Jackson

6:00 am - 2:28 pmDEN Denver Intl-PHL Philadelphia

6h 28m1 stop Atlanta Hartsfield-Jackson

$237Delta

Wed, Dec 9 - Tue, Dec 15

Cheap last minute flights

Enter your travel dates to find the best prices.

2:54 pm - 4:56 pmABE Allentown-Bethlehem-DEN Denver Intl

4h 02mnonstop

9:42 am - 3:11 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 29mnonstop

$283Allegiant Air

Fri, Aug 14 - Fri, Aug 21

6:49 am - 2:01 pmIAD Washington, D.C. Dulles Intl-DEN Denver Intl

9h 12m1 stop Atlanta Hartsfield-Jackson

11:59 pm - 7:09 pmDEN Denver Intl-IAD Washington, D.C. Dulles Intl

17h 10m1 stop Orlando

$295Frontier

Sat, Aug 15 - Sun, Nov 15

1:59 pm - 3:53 pmDCA Washington, D.C. Reagan-National-DEN Denver Intl

3h 54mnonstop

7:30 am - 12:51 pmDEN Denver Intl-DCA Washington, D.C. Reagan-National

3h 21mnonstop

$300Frontier

Sat, Aug 15 - Sat, Aug 22

12:44 pm - 2:58 pmPHL Philadelphia-DEN Denver Intl

4h 14mnonstop

9:00 am - 3:45 pmDEN Denver Intl-PHL Philadelphia

28h 45m1 stop Knoxville McGhee Tyson

$321Multiple Airlines

Wed, Aug 12 - Thu, Aug 20

2:54 pm - 4:56 pmABE Allentown-Bethlehem-DEN Denver Intl

4h 02mnonstop

5:46 pm - 11:14 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 28mnonstop

$332Allegiant Air

Fri, Aug 14 - Mon, Aug 17

11:06 am - 2:13 pmPHL Philadelphia-DEN Denver Intl

29h 07m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

9:00 am - 3:45 pmDEN Denver Intl-PHL Philadelphia

28h 45m1 stop Knoxville McGhee Tyson

$344Multiple Airlines

Tue, Aug 11 - Thu, Aug 20

10:34 pm - 12:30 amIAD Washington, D.C. Dulles Intl-DEN Denver Intl

3h 56mnonstop

11:59 pm - 5:19 amDEN Denver Intl-IAD Washington, D.C. Dulles Intl

3h 20mnonstop

$404United Airlines

Sat, Aug 15 - Sun, Nov 15

7:59 pm - 12:30 amMDT Harrisburg-DEN Denver Intl

6h 31m1 stop Washington, D.C. Dulles Intl

6:00 am - 1:32 pmDEN Denver Intl-MDT Harrisburg

5h 32m1 stop Chicago O'Hare Intl

$409United Airlines

Wed, Aug 12 - Sat, Aug 15

6:24 pm - 11:05 pmMDT Harrisburg-DEN Denver Intl

6h 41m1 stop Atlanta Hartsfield-Jackson

7:19 am - 5:39 pmDEN Denver Intl-MDT Harrisburg

8h 20m1 stop Atlanta Hartsfield-Jackson

$409Delta

Sat, Aug 15 - Tue, Aug 18

7:50 pm - 10:44 pmJFK New York John F Kennedy Intl-DEN Denver Intl

4h 54mnonstop

6:35 am - 12:19 pmDEN Denver Intl-JFK New York John F Kennedy Intl

3h 44mnonstop

$421Delta

Sat, Aug 15 - Fri, Sep 11

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Allegiant Air flights from Pennsylvania to Denver

Our best Allegiant Air deals on Pennsylvania to Denver flight tickets

Allegiant Air

Aug 31

ABE7:30 amAllentown-Bethlehem

3h 52m

DEN9:22 amDenver Intl

Sep 11

DEN9:36 amDenver Intl

3h 32m

ABE3:08 pmAllentown-Bethlehem

$102

Allegiant Air

Aug 31

ABE7:30 amAllentown-Bethlehem

3h 52m

DEN9:22 amDenver Intl

Sep 11

DEN9:36 amDenver Intl

3h 32m

ABE3:08 pmAllentown-Bethlehem

$112

Allegiant Air

Aug 31

ABE7:30 amAllentown-Bethlehem

3h 52m

DEN9:22 amDenver Intl

Sep 11

DEN9:36 amDenver Intl

3h 32m

ABE3:08 pmAllentown-Bethlehem

$119

American Airlines flights from Pennsylvania to Denver

Our best American Airlines deals on Pennsylvania to Denver flight tickets

American Airlines

Sep 23

DCA2:54 pmWashington, D.C. Reagan-National

7h 41m

1 stop

DEN8:35 pmDenver Intl

Sep 29

DEN8:18 amDenver Intl

6h 06m

1 stop

DCA4:24 pmWashington, D.C. Reagan-National

$269

American Airlines

Sep 1

JFK7:59 amNew York John F Kennedy Intl

9h 30m

1 stop

DEN3:29 pmDenver Intl

Sep 8

DEN6:25 amDenver Intl

7h 35m

1 stop

JFK4:00 pmNew York John F Kennedy Intl

$278

American Airlines

Aug 31

JFK5:00 pmNew York John F Kennedy Intl

7h 14m

1 stop

DEN10:14 pmDenver Intl

Sep 9

DEN9:07 amDenver Intl

5h 53m

1 stop

JFK5:00 pmNew York John F Kennedy Intl

$281

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

AllentownDenver

ABE Allentown-Bethlehem - DEN Denver Intl

ABEDEN

Allentown-Bethlehem

Mon 8/31

7:30 am-9:22 am

Nonstop3h 52m

Denver Intl

Fri 9/11

9:36 am-3:08 pm

Nonstop3h 32m

$102

AllentownDenver

ABE Allentown-Bethlehem - DEN Denver Intl

ABEDEN

Allentown-Bethlehem

Mon 8/31

7:30 am-9:22 am

Nonstop3h 52m

Denver Intl

Fri 9/11

9:36 am-3:08 pm

Nonstop3h 32m

$112

AllentownDenver

ABE Allentown-Bethlehem - DEN Denver Intl

ABEDEN

Allentown-Bethlehem

Mon 10/5

6:30 am-8:24 am

Nonstop3h 54m

Denver Intl

Wed 10/14

11:48 pm-10:28 pm

2 stops44h 40m

$193

AllentownDenver

ABE Allentown-Bethlehem - DEN Denver Intl

ABEDEN

Allentown-Bethlehem

Mon 8/24

7:00 am-8:52 am

Nonstop3h 52m

Denver Intl

Thu 8/27

8:31 am-9:07 pm

1 stop10h 36m

$197

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 9/19

2:10 pm-4:05 pm

Nonstop3h 55m

Denver Intl

Tue 9/22

6:30 am-2:20 pm

1 stop5h 50m

$228

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 10/3

5:25 am-7:30 am

Nonstop4h 05m

Denver Intl

Wed 10/7

6:35 am-3:25 pm

1 stop6h 50m

$228

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sun 10/4

5:32 pm-8:04 am

1 stop16h 32m

Denver Intl

Sat 10/10

11:59 pm-5:36 am

Nonstop3h 37m

$228

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Wed 10/7

12:40 pm-9:03 pm

1 stop10h 23m

Denver Intl

Fri 10/16

11:59 pm-5:36 am

Nonstop3h 37m

$228

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Sat 10/17

6:13 pm-10:32 pm

1 stop6h 19m

Denver Intl

Wed 10/21

8:00 am-6:18 pm

1 stop8h 18m

$237

PhiladelphiaDenver

PHL Philadelphia - DEN Denver Intl

PHLDEN

Philadelphia

Wed 12/9

3:33 pm-8:22 pm

1 stop6h 49m

Denver Intl

Tue 12/15

6:00 am-2:28 pm

1 stop6h 28m

$237

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 Pennsylvania to Denver

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 Denver?

The cheapest month to fly to Denver from Pennsylvania is in January. Flight prices, which tend to average around $333, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until October to fly from Pennsylvania, when ticket prices are also cheap, with an average price of $340.

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

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $384. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $463.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $276. Flights in the afternoon are often more expensive with an average ticket price of $451.

What is the cheapest Pennsylvania to Denver Intl flight route?

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

How far in advance should I book a flight from Pennsylvania to Denver?

You are more likely to see cheaper flights to Denver from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $364 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Pennsylvania for as low as $293 on momondo.

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

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

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

Cheap Pennsylvania to Denver flight deals and tips

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

Best Price Found	$99
Fastest flight time	3h 15m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Pennsylvania in the past 72 hours is $99. The best round-trip flight deal from Pennsylvania to Denver found on momondo in the last 72 hours is $164.

The fastest flight from Pennsylvania to Denver takes 3h 15m

Direct flights go from Pennsylvania to Denver every day.

There is 1 airport in Denver. From Pennsylvania there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Pennsylvania to Denver

When did momondo last update prices for flights from Pennsylvania to Denver Intl Airport?
Prices for flights from Pennsylvania to Denver Intl Airport are updated daily.
How many operators does momondo search for flights from Pennsylvania to Denver Intl Airport?
The number of operators available for flights from Pennsylvania to Denver Intl Airport is 7 as of August 2026.
How old do you have to be to fly from Pennsylvania to Denver Intl 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 Pennsylvania to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl 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 Denver Intl 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 Pennsylvania to Denver?
momondo data reveals that the most frequently booked plane model on the route from Pennsylvania to Denver is Boeing 737-800, representing 23.28% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 17.92%, Boeing 737-800 Passenger/BBJ2 (winglets) at 10.03%, and Airbus A320neo at 9.22%.

Best airlines flying from Pennsylvania to Denver

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $72	Free Cancellation	Rating 5.6 2,710 reviews	Search Frontier flights
Allegiant Air	PriceFrom $120	Free Cancellation	Rating 7.3 679 reviews	Search Allegiant Air flights
Delta	PriceFrom $169	Free Cancellation	Rating 7.8 8,504 reviews	Search Delta flights
United Airlines	PriceFrom $177	Free Cancellation	Rating 7.4 10,101 reviews	Search United Airlines flights
American Airlines	PriceFrom $184	Free Cancellation	Rating 7.1 11,899 reviews	Search American Airlines flights
JetBlue	PriceFrom $220	Free Cancellation	Rating 7.1 3,033 reviews	Search JetBlue flights
Southwest	PriceFrom $236	Free Cancellation	Rating 8.0 4,218 reviews	Search Southwest flights

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Golden

Why use momondo?

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

It is quick and easy to find Pennsylvania to Denver 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 Denver that suits you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pennsylvania to Denver.

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

Of course. momondo tracks the price of Pennsylvania to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Denver trip

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Airports servicing Colorado

Alamosa Airport

Aspen Pitkin County Airport

Cortez Montezuma County Airport

Colorado Springs Airport

Durango La Plata County Airport

Vail Eagle County Airport

Grand Junction Regnl Airport

Gunnison Airport

Hayden Yampa Valley Airport

Montrose County Airport

Telluride Airport

Cheap flights from Pennsylvania to Denver from $51

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 Denver departing on 8/31. 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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Allegiant Air flights from Pennsylvania to Denver

Our best Allegiant Air deals on Pennsylvania to Denver flight tickets

American Airlines flights from Pennsylvania to Denver

Our best American Airlines deals on Pennsylvania to Denver flight tickets

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See travel insights to Denver from

How to get the cheapest flight ticket from Pennsylvania to Denver

What is the cheapest month to fly to Denver?

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

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

What is the cheapest Pennsylvania to Denver Intl flight route?

How far in advance should I book a flight from Pennsylvania to Denver?

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

Can stopping save me money on Pennsylvania to Denver flights?

What is the cheapest airline that flies from Pennsylvania to Denver Intl?

What airlines fly to Denver?

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

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

How long does it take to fly to Denver?

Cheap Pennsylvania to Denver flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

Frequently asked questions about flying from Pennsylvania to Denver

Best airlines flying from Pennsylvania to Denver

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

Traveling to a place near Denver?

Why use momondo?

An easier way to manage your Denver 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 the United States

Airports servicing Colorado

Fly your favorite airline to Denver

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Denver

List of cabin classes available on flights landing in Denver. Availability may vary depending on flight origin and airline.

Popular cities in the United States

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

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