$95+ Cheap flights from Pennsylvania to Colorado
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jul 29 — Aug 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Pennsylvania to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Pennsylvania to Colorado
Cheapest
Best
Last-minute
One-way
Cheapest flights from Pennsylvania to ColoradoExplore the most affordable flight options available from Pennsylvania to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.
Explore the most affordable flight options available from Pennsylvania to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.
This CheapOair deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:06 am
PHL
- DEN
1 stop8h 54m
Multiple Airlines
Tue 8/1111:37 pm
DEN
- PHL
1 stop6h 45m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/251:32 pm
PHL
- DEN
1 stop10h 56m
Frontier
Sat 8/16:30 am
DEN
- PHL
1 stop10h 50m
Frontier
Deal found 6/29![Frontier logo]()
$246
This CheapOair deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:44 pm
PHL
- DEN
Nonstop4h 14m
Multiple Airlines
Wed 8/1211:37 pm
DEN
- PHL
1 stop6h 45m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/214:45 pm
PHL
- DEN
1 stop18h 34m
Frontier
Wed 8/2611:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Deal found 6/28![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:10 am
PHL
- DEN
1 stop8h 50m
Frontier
Sat 10/36:30 am
DEN
- PHL
1 stop9h 45m
Frontier
Deal found 6/25![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:40 pm
PHL
- DEN
1 stop18h 23m
Frontier
Tue 8/1811:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Deal found 6/28![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:30 pm
PHL
- DEN
1 stop18h 33m
Frontier
Sat 7/186:30 am
DEN
- PHL
1 stop10h 50m
Frontier
Deal found 6/24![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Thu 8/1311:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Deal found 6/28![Frontier logo]()
$253
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Tue 9/812:47 pm
DEN
- PHL
1 stop15h 43m
Frontier
Deal found 6/25![Frontier logo]()
$254
This CheapOair deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:00 am
PHL
- DEN
1 stop7h 55m
Multiple Airlines
Thu 9/2411:59 pm
DEN
- PHL
Nonstop3h 37m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:05 pm
PHL
- DEN
1 stop7h 52m
Frontier
Thu 8/2011:59 pm
DEN
- PHL
Nonstop3h 40m
Frontier
Deal found 6/28![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:45 pm
LGA
- DEN
1 stop9h 13m
Frontier
Wed 8/510:00 am
DEN
- LGA
1 stop8h 44m
Frontier
Deal found 6/26![Frontier logo]()
$272
Best flights from Pennsylvania to ColoradoDiscover carefully curated flight deals from Pennsylvania to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 29, 2026.
Discover carefully curated flight deals from Pennsylvania to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 29, 2026.
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:50 pm
JFK
- DEN
Nonstop4h 54m
Delta
Sat 8/226:40 am
DEN
- JFK
Nonstop3h 52m
Delta
Deal found 6/28![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:25 pm
LGA
- DEN
1 stop6h 23m
United Airlines
Tue 8/411:30 am
DEN
- LGA
Nonstop3h 54m
United Airlines
Deal found 6/28![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:50 pm
LGA
- DEN
Nonstop4h 35m
Southwest
Sun 10/46:15 am
DEN
- LGA
Nonstop3h 35m
Southwest
Deal found 6/27![Southwest logo]()
$297
This JetBlue deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:16 pm
JFK
- DEN
Nonstop4h 43m
JetBlue
Tue 7/2811:59 pm
DEN
- JFK
Nonstop3h 51m
JetBlue
Deal found 6/26![JetBlue logo]()
$312
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:59 pm
LGA
- DEN
Nonstop4h 12m
Delta
Sat 9/128:00 am
DEN
- LGA
Nonstop3h 43m
Delta
Deal found 6/25![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:30 am
LGA
- DEN
1 stop8h 00m
Southwest
Mon 7/275:15 pm
DEN
- LGA
Nonstop3h 45m
Southwest
Deal found 6/26![Southwest logo]()
$307
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:29 pm
LGA
- DEN
Nonstop4h 33m
United Airlines
Sat 7/255:20 pm
DEN
- LGA
Nonstop3h 53m
United Airlines
Deal found 6/24![United Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/24:00 pm
JFK
- DEN
Nonstop4h 50m
Delta
Wed 8/2612:05 pm
DEN
- JFK
Nonstop4h 15m
Delta
Deal found 6/28![Delta logo]()
$297
This JetBlue deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:16 pm
JFK
- DEN
Nonstop4h 43m
JetBlue
Sat 7/252:09 pm
DEN
- JFK
Nonstop4h 02m
JetBlue
Deal found 6/27![JetBlue logo]()
$330
This Southwest deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:05 pm
LGA
- DEN
Nonstop4h 10m
Southwest
Mon 8/316:05 am
DEN
- LGA
Nonstop3h 40m
Southwest
Deal found 6/28![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:05 pm
LGA
- DEN
Nonstop4h 46m
Delta
Fri 8/215:20 pm
DEN
- LGA
Nonstop3h 53m
Delta
Deal found 6/28![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/232:30 pm
LGA
- DEN
1 stop6h 25m
Southwest
Tue 7/289:20 am
DEN
- LGA
Nonstop3h 40m
Southwest
Deal found 6/24![Southwest logo]()
$320
This JetBlue deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:15 pm
JFK
- DEN
Nonstop4h 43m
JetBlue
Sun 8/2311:55 pm
DEN
- JFK
Nonstop3h 50m
JetBlue
Deal found 6/28![JetBlue logo]()
$362
This United Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:51 pm
PIT
- DEN
Nonstop3h 24m
United Airlines
Sun 10/46:00 am
DEN
- PIT
1 stop6h 06m
United Airlines
Deal found 6/28![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:20 am
JFK
- DEN
Nonstop4h 28m
Delta
Tue 10/66:40 am
DEN
- JFK
Nonstop3h 45m
Delta
Deal found 6/28![Delta logo]()
$302
This Southwest deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:05 pm
LGA
- DEN
2 stops7h 15m
Southwest
Sat 8/1511:10 am
DEN
- LGA
2 stops8h 35m
Southwest
Deal found 6/26![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:50 pm
JFK
- DEN
Nonstop4h 54m
Delta
Sun 9/136:40 am
DEN
- JFK
Nonstop3h 46m
Delta
Deal found 6/27![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/194:57 pm
PIT
- DEN
Nonstop3h 28m
United Airlines
Sat 9/269:38 am
DEN
- PIT
Nonstop3h 04m
United Airlines
Deal found 6/27![United Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:30 pm
LGA
- DEN
1 stop8h 15m
Southwest
Wed 7/296:10 am
DEN
- LGA
Nonstop3h 40m
Southwest
Deal found 6/27![Southwest logo]()
$332
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:05 pm
LGA
- DEN
Nonstop4h 46m
Delta
Thu 8/277:10 am
DEN
- LGA
Nonstop3h 42m
Delta
Deal found 6/25![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:16 pm
PIT
- DEN
1 stop5h 45m
United Airlines
Sun 8/165:38 pm
DEN
- PIT
Nonstop3h 07m
United Airlines
Deal found 6/28![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:50 pm
DCA
- DEN
1 stop5h 00m
Southwest
Wed 8/121:55 pm
DEN
- DCA
2 stops7h 10m
Southwest
Deal found 6/26![Southwest logo]()
$334
This JetBlue deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:20 am
DCA
- DEN
1 stop8h 51m
JetBlue
Tue 7/149:54 am
DEN
- DCA
1 stop7h 10m
JetBlue
Deal found 6/29![JetBlue logo]()
$448
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:20 pm
LGA
- DEN
Nonstop4h 18m
Delta
Mon 9/217:10 am
DEN
- LGA
Nonstop3h 41m
Delta
Deal found 6/28![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:50 pm
DCA
- DEN
1 stop5h 00m
Southwest
Sat 8/2911:25 am
DEN
- DCA
2 stops7h 15m
Southwest
Deal found 6/28![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:02 pm
PIT
- DEN
1 stop7h 13m
United Airlines
Wed 8/125:38 pm
DEN
- PIT
Nonstop3h 07m
United Airlines
Deal found 6/28![United Airlines logo]()
$407
This JetBlue deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:21 am
DCA
- DEN
1 stop8h 50m
JetBlue
Mon 7/2711:37 pm
DEN
- DCA
1 stop8h 33m
JetBlue
Deal found 6/26![JetBlue logo]()
$458
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:27 am
IAD
- DEN
1 stop8h 31m
Delta
Fri 8/712:50 am
DEN
- IAD
1 stop7h 14m
Delta
Deal found 6/26![Delta logo]()
$333
This JetBlue deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:25 pm
DCA
- DEN
1 stop11h 16m
JetBlue
Mon 8/311:37 pm
DEN
- DCA
1 stop10h 24m
JetBlue
Deal found 6/27![JetBlue logo]()
$474
This Southwest deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
PIT
- DEN
Nonstop3h 15m
Southwest
Sun 9/136:05 am
DEN
- PIT
1 stop4h 50m
Southwest
Deal found 6/27![Southwest logo]()
$364
Last-minute flights from Pennsylvania to ColoradoDiscover last-minute flight deals from Pennsylvania to Colorado. Data last updated June 29, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Colorado. Data last updated June 29, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Sat 7/186:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/24![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:30 pm
PHL
- DEN
1 stop18h 33m
Frontier
Tue 7/216:30 am
DEN
- PHL
1 stop13h 58m
Frontier
Deal found 6/24![Frontier logo]()
$251
This Frontier deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:55 pm
LGA
- DEN
1 stop9h 33m
Frontier
Wed 7/1510:09 am
DEN
- LGA
1 stop9h 51m
Frontier
Deal found 6/26![Frontier logo]()
$273
This Super.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Tue 7/216:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/24![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Tue 7/2811:46 pm
DEN
- PHL
1 stop10h 36m
Frontier
Deal found 6/25![Frontier logo]()
$254
This Expedia deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:00 pm
JFK
- DEN
1 stop11h 05m
Frontier
Sun 7/2611:46 pm
DEN
- JFK
1 stop10h 04m
Frontier
Deal found 6/25![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:40 pm
PHL
- DEN
1 stop18h 23m
Frontier
Tue 8/46:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/25![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/251:32 pm
PHL
- DEN
1 stop10h 56m
Frontier
Sat 8/16:30 am
DEN
- PHL
1 stop10h 50m
Frontier
Deal found 6/29![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:45 pm
LGA
- DEN
1 stop9h 13m
Frontier
Wed 8/510:00 am
DEN
- LGA
1 stop8h 44m
Frontier
Deal found 6/26![Frontier logo]()
$272
This Expedia deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:45 pm
LGA
- DEN
1 stop9h 13m
Frontier
Mon 8/36:30 am
DEN
- LGA
1 stop12h 27m
Frontier
Deal found 6/25![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:40 pm
PHL
- DEN
1 stop18h 23m
Frontier
Wed 8/510:00 am
DEN
- PHL
1 stop19h 15m
Frontier
Deal found 6/25![Frontier logo]()
$256
This Frontier deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Tue 8/411:52 pm
DEN
- PHL
1 stop12h 42m
Frontier
Deal found 6/25![Frontier logo]()
$257
One-way flights from Pennsylvania to ColoradoSearch for one-way flight options from Pennsylvania to Colorado. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
Search for one-way flight options from Pennsylvania to Colorado. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
This JetBlue deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:10 am
PIT
- DEN
1 stop7h 55m
JetBlue
Deal found 6/25![JetBlue logo]()
$95
This Expedia deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:10 am
PIT
- DEN
1 stop7h 55m
JetBlue
Deal found 6/28![JetBlue logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/248:00 am
PIT
- DEN
1 stop25h 49m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:00 am
PIT
- DEN
1 stop25h 49m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$109
This JetBlue deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:10 am
PIT
- DEN
1 stop7h 55m
JetBlue
Deal found 6/28![JetBlue logo]()
$110
This JetBlue deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:10 am
PIT
- DEN
1 stop7h 55m
JetBlue
Deal found 6/27![JetBlue logo]()
$118
This Frontier deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:49 pm
PIT
- DEN
1 stop12h 11m
Frontier
Deal found 6/24![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:13 pm
PIT
- DEN
1 stop22h 05m
Frontier
Deal found 6/25![Frontier logo]()
$134
This Super.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:10 pm
PIT
- DEN
1 stop29h 50m
Frontier
Deal found 6/27![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:10 pm
PIT
- DEN
1 stop14h 23m
Frontier
Deal found 6/24![Frontier logo]()
$136
This Frontier deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 6/26![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:07 pm
PHL
- DEN
1 stop23h 16m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$139
Find flight deals from Pennsylvania to Colorado
Keep the following information in mind while searching for Pennsylvania to Colorado flight deals. Data was last updated June 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $245 (CheapOair) |
One-way from | $95 (JetBlue) |
Popular in | June |
Cheapest in | August |
Average price | $467 |
Good round-trip deal | $188 or less |
Good one-way deal | $109 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania 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, Cheapflights users made 2,558,603 searches. Data last updated June 29, 2026.
Use the filters below to find and compare flights from Pennsylvania to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Wed 8/19
7:50 pm-10:44 pm
Nonstop4h 54m
Denver Intl
Sat 8/22
6:40 am-12:32 pm
Nonstop3h 52m
$277
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Tue 7/28
7:25 pm-11:48 pm
1 stop6h 23m
Denver Intl
Tue 8/4
11:30 am-5:24 pm
Nonstop3h 54m
$287
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Tue 9/8
1:59 pm-4:11 pm
Nonstop4h 12m
Denver Intl
Sat 9/12
8:00 am-1:43 pm
Nonstop3h 43m
$295
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Thu 10/1
8:50 pm-11:25 pm
Nonstop4h 35m
Denver Intl
Sun 10/4
6:15 am-11:50 am
Nonstop3h 35m
$297
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Sun 8/2
4:00 pm-6:50 pm
Nonstop4h 50m
Denver Intl
Wed 8/26
12:05 pm-6:20 pm
Nonstop4h 15m
$297
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Wed 8/19
6:05 pm-8:51 pm
Nonstop4h 46m
Denver Intl
Fri 8/21
5:20 pm-11:13 pm
Nonstop3h 53m
$297
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Fri 10/2
8:20 am-10:48 am
Nonstop4h 28m
Denver Intl
Tue 10/6
6:40 am-12:25 pm
Nonstop3h 45m
$302
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Tue 7/21
6:30 am-12:30 pm
1 stop8h 00m
Denver Intl
Mon 7/27
5:15 pm-11:00 pm
Nonstop3h 45m
$307
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Mon 8/31
7:50 pm-10:44 pm
Nonstop4h 54m
Denver Intl
Sun 9/13
6:40 am-12:26 pm
Nonstop3h 46m
$307
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Thu 7/23
8:16 pm-10:59 pm
Nonstop4h 43m
Denver Intl
Tue 7/28
11:59 pm-5:50 am
Nonstop3h 51m
$312
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Pennsylvania with our price prediction graph.
PHL-DEN
LGA-DEN
JFK-DEN
PIT-DEN
EWR-DEN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Pennsylvania to Colorado
USPA-USCO
PHL-DEN
LGA-DEN
JFK-DEN
PIT-DEN
What is the cheapest month to book a flight from Pennsylvania to Colorado?
Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Colorado (average of $281). Flying from Pennsylvania to Colorado in June is currently the most expensive (average of $517). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PA to CO?
Find hourly flight availability from Pennsylvania to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 29, 2026.
It’s typically best to fly out from Pennsylvania to Colorado in the evening. Doing so could potentially save you 21% on the flight price compared to flying in the afternoon, which is usually more expensive.
Weekly flight availability from Pennsylvania to Colorado
Explore weekly flight availability from Pennsylvania to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 29, 2026.
The most flights from USPA to USCO are scheduled on a Monday (18 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 on average).
How much does it cost to fly round-trip from Pennsylvania to Colorado?
How far ahead should I book a flight from Pennsylvania to Colorado?
Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pennsylvania to Colorado. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Pennsylvania to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Colorado. Price data was last updated on June 27, 2026.
Travelers seeking maximum savings on their Pennsylvania to Colorado flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated June 29, 2026.
Read through reviews of airlines operating flights from Pennsylvania to Colorado, such as Southwest,United Airlines, andAllegiant Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Pennsylvania to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pennsylvania to Colorado by cabin class
Find flights from Pennsylvania to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Pennsylvania and Colorado flights
Browse other Pennsylvania and Colorado flight options. Last updated on June 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Colorado
Find the right flight back to Pennsylvania after your stay in Colorado
Pennsylvania to Colorado flights
Consider these flights traveling from Pennsylvania to Colorado.
Top 7 airlines flying from Pennsylvania to Colorado
Discover the top 7 airlines that operate flights from Pennsylvania to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$74 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$127 | Average$245 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$129 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$145 | Average$353 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$445 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$184 | Average$449 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$470 | FlexibilityNo cancel fee | On-time63% |