$99+ Cheap flights from Colorado to Pennsylvania
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHL
Oct 29 — Nov 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Colorado to Pennsylvania 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 Colorado to Pennsylvania
Cheapest
Best
Last-minute
One-way
Cheapest flights from Colorado to PennsylvaniaExplore the most affordable flight options available from Colorado to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Colorado to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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.
Fri 10/237:37 pm -
Nonstop3h 39m
Sun 10/255:50 am -
Nonstop4h 10m
Deal found 9/25![Frontier logo]()
$261
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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.
Thu 10/158:55 pm -
1 stop21h 09m
Sat 10/179:09 pm -
1 stop13h 10m
Deal found 9/25![Frontier logo]()
$262
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:00 am -
1 stop6h 35m
Sun 12/136:40 pm -
1 stop13h 49m
Deal found 9/28![Frontier logo]()
$263
This Frontier deal was found by Cheapflights users on 9/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:00 am -
1 stop6h 35m
Sun 12/136:40 pm -
2 stops19h 55m
Deal found 9/27![Frontier logo]()
$264
This FlightHub deal was found by Cheapflights users on 9/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:57 pm -
1 stop10h 24m
Sun 10/255:50 am -
Nonstop4h 10m
Deal found 9/27![Frontier logo]()
$265
This Mytrip deal was found by Cheapflights users on 9/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:05 am -
2 stops15h 06m
Sat 10/317:42 am -
2 stops15h 50m
Deal found 9/26![Frontier logo]()
$267
This Cheapflightsfares deal was found by Cheapflights users on 9/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:57 pm -
1 stop10h 24m
Mon 10/198:44 pm -
1 stop18h 04m
Deal found 9/26![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 11/59:19 pm -
2 stops32h 02m
Mon 11/95:22 pm -
1 stop17h 00m
Deal found 9/28![Frontier logo]()
$269
This Mytrip deal was found by Cheapflights users on 9/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:43 am -
2 stops20h 42m
Thu 11/266:41 am -
1 stop17h 19m
Deal found 9/29![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 9/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:10 am -
2 stops13h 55m
Tue 12/88:34 am -
2 stops15h 21m
Deal found 9/29![Frontier logo]()
$271
This Kissandfly.com deal was found by Cheapflights users on 9/27. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:37 pm -
Nonstop3h 39m
Sat 10/248:30 am -
1 stop15h 01m
Deal found 9/27![Frontier logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Fri 12/46:10 pm -
2 stops24h 57m
Thu 12/108:33 pm -
1 stop22h 47m
Deal found 9/27![Multiple Airlines logo]()
$288
Best flights from Colorado to PennsylvaniaDiscover carefully curated flight deals from Colorado to Pennsylvania that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Colorado to Pennsylvania that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This Southwest deal was found by Cheapflights users on 9/28. 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.
Tue 10/276:00 pm -
Nonstop3h 35m
Tue 11/35:15 pm -
Nonstop4h 10m
Deal found 9/28![Southwest logo]()
$321
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Thu 12/106:00 am -
1 stop5h 55m
Tue 12/157:41 am -
Nonstop4h 20m
Deal found 9/27![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 9/25. 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 10/2312:59 am -
1 stop8h 39m
Sat 10/3112:13 pm -
1 stop7h 19m
Deal found 9/25![Delta logo]()
$333
This American Airlines deal was found by Cheapflights users on 9/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 am -
1 stop8h 49m
Sat 10/3110:34 am -
2 stops9h 15m
Deal found 9/25![American Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Sun 11/18:26 am -
2 stops36h 02m
Fri 11/68:57 pm -
1 stop13h 27m
Deal found 9/25![Multiple Airlines logo]()
$408
This CheapOair deal was found by Cheapflights users on 9/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:14 am -
Nonstop3h 28m
Mon 10/197:30 am -
Nonstop3h 54m
Deal found 9/25![Allegiant Air logo]()
$416
This Cheapflightsfares deal was found by Cheapflights users on 9/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:12 pm -
1 stop16h 35m
Tue 10/62:42 pm -
1 stop19h 10m
Deal found 9/29![Frontier logo]()
$465
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Mon 11/26:00 am -
1 stop6h 17m
Wed 11/43:35 pm -
Nonstop4h 20m
Deal found 9/28![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:05 am -
1 stop6h 05m
Tue 10/277:16 pm -
1 stop6h 28m
Deal found 9/24![Delta logo]()
$341
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:20 pm -
Nonstop2h 55m
Mon 10/267:35 pm -
1 stop6h 40m
Deal found 9/25![Southwest logo]()
$355
This American Airlines deal was found by Cheapflights users on 9/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:46 am -
1 stop5h 59m
Sat 10/245:00 am -
1 stop6h 16m
Deal found 9/27![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
1 stop5h 58m
Sat 10/316:30 am -
1 stop5h 56m
Deal found 9/26![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 9/25. 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.
Sat 12/56:05 pm -
2 stops13h 24m
Mon 12/145:15 am -
1 stop9h 18m
Deal found 9/25![Delta logo]()
$356
This Southwest deal was found by Cheapflights users on 9/24. 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.
Tue 10/2711:15 am -
Nonstop3h 30m
Tue 10/276:40 pm -
1 stop5h 35m
Deal found 9/24![Southwest logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:09 am -
1 stop7h 38m
Sat 11/1410:00 am -
1 stop6h 20m
Deal found 9/29![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 9/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:00 am -
1 stop8h 11m
Tue 10/279:48 am -
2 stops9h 39m
Deal found 9/29![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 9/26. 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.
Wed 11/118:20 am -
2 stops8h 30m
Wed 11/1812:20 pm -
2 stops9h 00m
Deal found 9/26![Southwest logo]()
$375
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Fri 2/1211:50 pm -
1 stop7h 34m
Sun 2/148:40 am -
1 stop5h 44m
Deal found 9/27![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 9/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:00 am -
1 stop8h 16m
Wed 11/116:30 am -
1 stop7h 31m
Deal found 9/29![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:05 pm -
2 stops7h 50m
Thu 10/295:10 pm -
2 stops10h 30m
Deal found 9/25![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Thu 2/189:48 am -
1 stop6h 52m
Sun 2/216:30 am -
1 stop6h 03m
Deal found 9/28![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/232:32 pm -
1 stop6h 20m
Sat 1/25:43 pm -
1 stop8h 16m
Deal found 9/27![American Airlines logo]()
$510
This Southwest deal was found by Cheapflights users on 9/26. 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.
Thu 10/2210:35 am -
2 stops7h 00m
Wed 10/286:00 am -
2 stops7h 25m
Deal found 9/26![Southwest logo]()
$404
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Fri 11/612:02 pm -
1 stop7h 36m
Mon 11/96:15 am -
1 stop7h 00m
Deal found 9/28![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 9/26. 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.
Sun 11/16:07 pm -
2 stops14h 09m
Tue 11/102:12 pm -
1 stop8h 38m
Deal found 9/26![Delta logo]()
$416
This American Airlines deal was found by Cheapflights users on 9/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:39 am -
2 stops10h 35m
Wed 10/141:35 pm -
2 stops11h 17m
Deal found 9/25![American Airlines logo]()
$529
This Southwest deal was found by Cheapflights users on 9/27. 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 12/1510:50 am -
Nonstop3h 25m
Tue 12/155:15 pm -
Nonstop4h 10m
Deal found 9/27![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:37 pm -
1 stop7h 43m
Tue 10/276:15 am -
2 stops10h 30m
Deal found 9/25![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/28. 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 10/78:17 am -
1 stop7h 22m
Wed 10/286:10 am -
2 stops8h 20m
Deal found 9/28![Delta logo]()
$430
This Southwest deal was found by Cheapflights users on 9/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:30 am -
2 stops6h 45m
Tue 11/178:25 am -
2 stops7h 20m
Deal found 9/29![Southwest logo]()
$407
Last-minute flights from Colorado to PennsylvaniaDiscover last-minute flight deals from Colorado to Pennsylvania. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Pennsylvania. Data last updated September 29, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:14 am -
Nonstop3h 28m
Mon 10/56:30 am -
Nonstop3h 54m
Deal found 9/25![Allegiant Air logo]()
$298
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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.
Thu 10/158:55 pm -
1 stop21h 09m
Sat 10/179:09 pm -
1 stop13h 10m
Deal found 9/25![Frontier logo]()
$262
This Super.com deal was found by Cheapflights users on 9/24. 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.
Thu 10/157:37 pm -
Nonstop3h 39m
Mon 10/195:50 am -
Nonstop4h 10m
Deal found 9/24![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 9/26. 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.
Fri 10/169:12 pm -
2 stops19h 03m
Wed 10/215:50 am -
Nonstop4h 10m
Deal found 9/26![Frontier logo]()
$263
This Cheapflightsfares deal was found by Cheapflights users on 9/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:57 pm -
1 stop10h 24m
Mon 10/198:44 pm -
1 stop18h 04m
Deal found 9/26![Frontier logo]()
$268
This Super.com deal was found by Cheapflights users on 9/27. 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.
Sat 10/177:37 pm -
Nonstop3h 39m
Mon 10/195:50 am -
Nonstop4h 10m
Deal found 9/27![Frontier logo]()
$271
This Kissandfly.com deal was found by Cheapflights users on 9/27. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:37 pm -
Nonstop3h 39m
Sat 10/248:30 am -
1 stop15h 01m
Deal found 9/27![Frontier logo]()
$272
This FlightHub deal was found by Cheapflights users on 9/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:57 pm -
1 stop10h 24m
Sun 10/255:50 am -
Nonstop4h 10m
Deal found 9/27![Frontier logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 9/26. 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.
Thu 10/227:37 pm -
Nonstop3h 39m
Sun 10/256:00 am -
2 stops52h 22m
Deal found 9/26![Frontier logo]()
$264
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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.
Fri 10/237:37 pm -
Nonstop3h 39m
Sun 10/255:50 am -
Nonstop4h 10m
Deal found 9/25![Frontier logo]()
$261
This Mytrip deal was found by Cheapflights users on 9/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:05 am -
2 stops15h 06m
Sat 10/317:42 am -
2 stops15h 50m
Deal found 9/26![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Wed 10/2810:39 am -
1 stop28h 00m
Sun 11/19:59 pm -
1 stop21h 23m
Deal found 9/28![Multiple Airlines logo]()
$309
One-way flights from Colorado to PennsylvaniaSearch for one-way flight options from Colorado to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Colorado to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Trip.com deal was found by Cheapflights users on 9/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:39 am -
1 stop10h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Wed 12/28:46 pm -
2 stops36h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Wed 10/2810:43 am -
2 stops28h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$130
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2111:55 pm -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 9/25. 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.
Thu 11/56:40 am -
1 stop8h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 9/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:40 am -
1 stop8h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Thu 11/56:30 am -
2 stops14h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$136
This Super.com deal was found by Cheapflights users on 9/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:02 pm -
1 stop20h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 9/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:40 am -
1 stop10h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 9/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:55 pm -
1 stop21h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Tue 12/291:20 pm -
1 stop24h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$157
This Frontier deal was found by Cheapflights users on 9/25. 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.
Thu 11/266:20 am -
2 stops12h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$157
Find flight deals from Colorado to Pennsylvania
Keep the following information in mind while searching for Colorado to Pennsylvania flight deals. Data was last updated September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (Cheapflightsfares) |
One-way from | $99 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $412 |
Good round-trip deal | $198 or less |
Good one-way deal | $108 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Pennsylvania 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 7,457,451 searches. Data last updated September 29, 2026.
Use the filters below to find and compare flights from Colorado to Pennsylvania that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Tue 10/27
6:08 pm-11:39 pm
Nonstop3h 31m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$161
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Mon 11/9
6:45 pm-12:10 am
Nonstop3h 25m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$161
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Wed 10/21
7:00 am-5:16 pm
1 stop8h 16m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$171
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Fri 12/11
6:45 pm-12:05 am
Nonstop3h 20m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$171
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Wed 10/21
6:00 am-2:41 pm
1 stop6h 41m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$171
DenverPittsburgh
DEN Denver Intl - PIT Pittsburgh
DENPIT
Denver Intl
Mon 12/21
5:55 pm-11:02 pm
Nonstop3h 07m
Pittsburgh
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$173
Quickest round-trip
DenverPittsburgh
DEN Denver Intl - PIT Pittsburgh
DENPIT
Denver Intl
Sat 12/5
11:05 am-3:55 pm
Nonstop2h 50m
Pittsburgh
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$173
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Wed 12/16
10:55 am-10:05 pm
2 stops9h 10m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$176
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Fri 10/23
2:35 pm-12:56 am
1 stop8h 21m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$181
DenverPhiladelphia
DEN Denver Intl - PHL Philadelphia
DENPHL
Denver Intl
Fri 11/27
6:00 am-4:40 pm
1 stop8h 40m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$181
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to Pennsylvania
Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Colorado with our price prediction graph.
DEN-PHL
DEN-MDT
DEN-ABE
DEN-PIT
COS-PHL
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 Colorado to Pennsylvania
USCO-USPA
DEN-PHL
DEN-MDT
DEN-ABE
DEN-PIT
What is the cheapest month to book a flight from Colorado to Pennsylvania?
Currently, February is the cheapest month in which you can book a flight from Colorado to Pennsylvania (average of $339). Flying from Colorado to Pennsylvania in June is currently the most expensive (average of $485). 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 CO to PA?
Find hourly flight availability from Colorado to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 10% on flights from Colorado to Pennsylvania by exploring options for tickets in the afternoon.
Weekly flight availability from Colorado to Pennsylvania
Explore weekly flight availability from Colorado to Pennsylvania. 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 September 29, 2026.
The most flights from USCO to USPA are scheduled on a Monday (20 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Colorado to Pennsylvania?
Airfare is below average for this route at the moment.
Colorado to Pennsylvania flights typically cost between $269 and $469 in October.The cheapest round-trip price found within the last 5 days was $261 on Frontier (Oct 23-Oct 25).
How far ahead should I book a flight from Colorado to Pennsylvania?
Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Colorado to Pennsylvania. 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 Colorado to Pennsylvania?
Use this chart to determine the cheapest time to fly round-trip from Colorado to Pennsylvania. Price data was last updated on September 26, 2026.
Travelers seeking maximum savings on their Colorado to Pennsylvania flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Pennsylvania
Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated September 29, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Colorado to Pennsylvania have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Colorado to Pennsylvania. 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 Colorado to Pennsylvania
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Pennsylvania by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Pennsylvania by cabin class
Find flights from Colorado to Pennsylvania, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Pennsylvania flights
Browse other Colorado and Pennsylvania flight options. Last updated on September 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Pennsylvania
Find the right flight back to Colorado after your stay in Pennsylvania
Colorado to Pennsylvania flights
Consider these flights traveling from Colorado to Pennsylvania.
Top 7 airlines flying from Colorado to Pennsylvania
Discover the top 7 airlines that operate flights from Colorado to Pennsylvania. 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 7,457,451 searches. Data last updated September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$104 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$263 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$138 | Average$423 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$463 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$167 | Average$402 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$188 | Average$474 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$500 | FlexibilityNo cancel fee | On-time63% |