$55 Find Cheap Flights from Colorado to Pennsylvania

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Low seasonJanuary
High seasonMay
Cheapest flight$55
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Denver to Philadelphia

Flights from Colorado to Pennsylvania: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to Pennsylvania 
PaulFlew with American AirlinesDEN-PHLJan 2025
Contour airlines was great for a connection through Philadelphia. I had a tight connection and thought I might not make it, but I called and was able to talk with an actual person. They called ahead to the gate, and the plane held the door open a few minutes for me. Great service, and a very comfortable flight.
Verified travelerFlew with FrontierDEN-PHLMay 2024
Don’t fly frontier. The staff at the airport is rude, be careful.

FAQs for booking flights from Colorado to Pennsylvania

  • How does KAYAK find such low prices on flights from Colorado to Pennsylvania?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Pennsylvania.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Pennsylvania?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado to Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to Pennsylvania?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Colorado to Pennsylvania with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Pennsylvania?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Colorado to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Pennsylvania?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Pennsylvania is Allentown-Bethlehem Airport (ABE), with an average flight price of $108.

  • What is the cheapest day to fly to Pennsylvania?

    Based on KAYAK data, the cheapest day to fly to Pennsylvania is Wednesday where round-trip tickets can be as cheap as $289. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $452 on average.

  • What is the cheapest time of day to fly to Pennsylvania?

    The cheapest time of day to fly to Pennsylvania is generally at night, when round-trip flights cost $221 on average. Morning departures are around 38% more expensive than evening flights, on average. The most expensive time of day to fly to Pennsylvania is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $503.

  • What is the cheapest flight to Pennsylvania?

    The cheapest ticket to Pennsylvania from Colorado found in the last 72 hours was to Pittsburgh, at $117 round-trip. The most popular route is Denver (DEN) to Philadelphia (PHL) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $162.

  • What is the cheapest month to fly from Colorado to Pennsylvania?

    The cheapest month for flights from Colorado to Pennsylvania is August, when tickets cost $353 (return) on average. On the other hand, the most expensive months are September and November, when the average cost of round-trip tickets is $838 and $734 respectively.

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

    To get a below average price on the flight from Colorado to Pennsylvania, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

  • How long is the flight to Pennsylvania?

    An average nonstop flight from Colorado to Pennsylvania takes 5h 49m, covering a distance of 1622 miles. The shortest route is Denver (DEN) to Pittsburgh (PIT) with an average flight time of 3h 00m.

  • What are the most popular destinations in Pennsylvania?

    Based on KAYAK flight searches, the most popular destination is New York (67% of total searches to Pennsylvania). The next most popular destinations are Washington, D.C. (17%) and Philadelphia (11%). Searches for flights to Pittsburgh (4%), to Harrisburg (1%) and to Scranton (0%) are also popular.

Top 5 airlines serving from Colorado to Pennsylvania

Need help choosing which airline to fly with from Colorado to Pennsylvania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
8.2Boarding
7.6Entertainment
8.0Comfort
7.1Food
8.6Crew
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

Everything went as planned. Crew was great. Seats were still not that comfortable.

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

The seats were extremely hard and uncomfortable, even for a budget airline.

Boarding was very well executed. Got my bag right away.

Overall experience good. There was no food and seats were not terribly comfortable.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

There were a lot of issues every step of the process. Check in, security, boarding, and dealing with luggage. Plus the money you think you are saving you end up using in hidden fees.

The flight attendant was arguing with a passenger before takeoff. The passenger was frustrated but the flight attendant should have handled it with grace, but instead she was nasty and rude. The seats were comfortable and the flight was uneventful. I wish we didn’t have to pay for drinks or snacks but that’s what you get with a budget airline.

Booked two aisle seats and were switched to an aisle and middle. Not happy.

I fly Frontier often and generally don't have any issues. For some reason, the Denver to Houston's George Bush Intercontinental (IAH) flight always needs to wait on the tarmac in Houston because a gate is not available after landing. I've been stuck for as little as 15 minutes and as much as a little over an hour. I know only fly the Frontier Denver to IAH route when there is not an available flight to Houston Hobby (HOU).

Book cheap flights from Colorado to Pennsylvania

Recent round-trip flight deals

7/2Wed
nonstopFrontier
3h 40mDEN-PHL
7/9Wed
nonstopFrontier
4h 13mPHL-DEN
$112
6/13Fri
nonstopFrontier
3h 27mDEN-DCA
6/16Mon
nonstopFrontier
4h 04mDCA-DEN
$150
5/13Tue
nonstopAmerican Airlines
3h 39mDEN-PHL
5/13Tue
nonstopAmerican Airlines
4h 13mPHL-DEN
$206
6/3Tue
nonstopAmerican Airlines
3h 36mDEN-PHL
6/10Tue
1 stopAmerican Airlines
6h 51mPHL-DEN
$213
6/11Wed
nonstopUnited Airlines
3h 26mDEN-IAD
6/11Wed
nonstopUnited Airlines
3h 56mIAD-DEN
$217
5/31Sat
1 stopDelta
6h 18mDEN-IAD
6/3Tue
1 stopDelta
6h 42mIAD-DEN
$237
8/7Thu
1 stopDelta
5h 30mCOS-IAD
8/13Wed
1 stopDelta
6h 29mIAD-COS
$237
6/28Sat
nonstopUnited Airlines
3h 28mDEN-IAD
7/5Sat
nonstopUnited Airlines
4h 04mIAD-DEN
$243
6/14Sat
nonstopSouthwest
3h 40mDEN-PHL
6/25Wed
2 stopsSouthwest
10h 35mPHL-DEN
$244
5/21Wed
nonstopSouthwest
3h 45mDEN-LGA
5/27Tue
nonstopSouthwest
4h 20mLGA-DEN
$265

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Recent one-way flight deals

5/27Tue
nonstopFrontier
3h 37mDEN-PHL
$55
5/31Sat
nonstopFrontier
3h 37mDEN-PHL
$56
5/14Wed
nonstopSouthwest
3h 35mDEN-PHL
$106
5/24Sat
nonstopUnited Airlines
3h 39mDEN-PHL
$107
6/14Sat
nonstopUnited Airlines
3h 25mDEN-IAD
$109
7/30Wed
1 stopAmerican Airlines
5h 53mDEN-PHL
$117
7/3Thu
nonstopSouthwest
3h 30mDEN-IAD
$117
8/6Wed
nonstopAmerican Airlines
3h 41mDEN-PHL
$119
5/31Sat
1 stopDelta
6h 18mDEN-IAD
$119
6/14Sat
1 stopDelta
5h 53mDEN-DCA
$119

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Last minute flights from Colorado to Pennsylvania

Last minute flight, train and bus deals

5/5Mon
nonstopFrontier
3h 27mDEN-DCA
5/12Mon
nonstopFrontier
4h 02mDCA-DEN
$217
5/5Mon
multi-stopFrontier
13h 12mDEN-JFK
5/12Mon
multi-stopFrontier
14h 59mJFK-DEN
$259
5/5Mon
multi-stopDelta
5h 41mDEN-DCA
5/13Tue
multi-stopDelta
5h 34mDCA-DEN
$347
5/5Mon
multi-stopDelta
6h 05mDEN-JFK
5/13Tue
nonstopDelta
4h 35mJFK-DEN
$353
5/5Mon
nonstopUnited Airlines
3h 25mDEN-IAD
5/12Mon
nonstopUnited Airlines
3h 57mIAD-DEN
$367
5/1Thu
multi-stopUnited Airlines
5h 34mDEN-MDT
5/20Tue
multi-stopUnited Airlines
7h 34mMDT-DEN
$384
5/3Sat
multi-stopAmerican Airlines
7h 59mCOS-EWR
5/5Mon
multi-stopAmerican Airlines
7h 46mEWR-COS
$388
5/3Sat
multi-stopAmerican Airlines
8h 25mCOS-EWR
5/5Mon
multi-stopAmerican Airlines
7h 46mEWR-COS
$393
5/1Thu
multi-stopSouthwest
7h 45mDEN-LGA
6/17Tue
multi-stopSouthwest
6h 45mLGA-DEN
$552
5/1Thu
multi-stopSouthwest
5h 30mDEN-DCA
5/28Wed
multi-stopSouthwest
7h 55mDCA-DEN
$554

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Everything you need to know for your flight to Pennsylvania

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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