$76+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jun 6 — Jun 131
Round-trip
1 adult, Economy
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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 May 7, 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 May 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/248:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Fri 5/2911:59 pm
DEN
- PHL
Nonstop3h 38m
Frontier
Deal found 5/4![Frontier logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 5/298:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Sat 6/66:35 am
DEN
- PHL
1 stop16h 31m
Frontier
Deal found 5/4![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 5/4. 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 5/278:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Tue 6/26:30 am
DEN
- PHL
1 stop10h 40m
Frontier
Deal found 5/4![Frontier logo]()
$138
This Booking.com deal was found by Cheapflights users on 5/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Sat 6/67:00 am
DEN
- PHL
1 stop7h 16m
Frontier
Deal found 5/3![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/2310:40 am
PHL
- DEN
1 stop9h 24m
Frontier
Wed 5/2711:59 pm
DEN
- PHL
Nonstop3h 38m
Frontier
Deal found 5/3![Frontier logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 5/2. 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 5/298:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Wed 6/36:30 am
DEN
- PHL
1 stop10h 40m
Frontier
Deal found 5/2![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/208:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Fri 5/2911:59 pm
DEN
- PHL
Nonstop3h 38m
Frontier
Deal found 5/4![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/263:00 pm
PHL
- DEN
1 stop8h 19m
Frontier
Thu 5/2811:59 pm
DEN
- PHL
Nonstop3h 38m
Frontier
Deal found 5/4![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 5/4. 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 8/138:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Sat 8/226:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 5/4![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/288:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Tue 6/211:54 pm
DEN
- PHL
2 stops46h 50m
Frontier
Deal found 5/2![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 5/3. 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 5/1911:07 am
IAD
- DEN
1 stop13h 17m
Frontier
Wed 5/2711:54 pm
DEN
- IAD
1 stop8h 18m
Frontier
Deal found 5/3![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/312:24 pm
IAD
- DEN
2 stops12h 00m
Frontier
Mon 6/86:30 am
DEN
- IAD
1 stop8h 57m
Frontier
Deal found 5/2![Frontier logo]()
$207
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 May 7, 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 May 7, 2026.
This Southwest deal was found by Cheapflights users on 5/6. 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 6/410:25 am
LGA
- DEN
Nonstop4h 20m
Southwest
Wed 6/106:10 am
DEN
- LGA
Nonstop3h 40m
Southwest
Deal found 5/6![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 5/3. 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 7/284:59 pm
LGA
- DEN
Nonstop4h 36m
United Airlines
Thu 8/61:59 pm
DEN
- LGA
Nonstop3h 54m
United Airlines
Deal found 5/3![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 5/2. 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 5/187:55 pm
JFK
- DEN
Nonstop4h 45m
Delta
Wed 5/276:30 am
DEN
- JFK
Nonstop3h 50m
Delta
Deal found 5/2![Delta logo]()
$287
This JetBlue deal was found by Cheapflights users on 5/4. 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.
Mon 8/108:20 pm
JFK
- DEN
Nonstop4h 39m
JetBlue
Fri 8/1411:59 pm
DEN
- JFK
Nonstop3h 51m
JetBlue
Deal found 5/4![JetBlue logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:00 am
IAD
- DEN
2 stops16h 46m
Alaska Airlines
Mon 9/285:39 pm
DEN
- IAD
1 stop10h 01m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$521
This Delta deal was found by Cheapflights users on 5/3. 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.
Thu 5/288:30 am
JFK
- DEN
Nonstop4h 30m
Delta
Mon 6/111:50 pm
DEN
- JFK
Nonstop3h 55m
Delta
Deal found 5/3![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 5/2. 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 7/28:55 pm
LGA
- DEN
Nonstop4h 30m
Southwest
Tue 7/78:10 am
DEN
- LGA
1 stop6h 40m
Southwest
Deal found 5/2![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 5/4. 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 8/107:25 pm
LGA
- DEN
1 stop6h 23m
United Airlines
Thu 8/131:59 pm
DEN
- LGA
Nonstop3h 54m
United Airlines
Deal found 5/4![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 5/4. 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 5/308:30 am
JFK
- DEN
Nonstop4h 32m
Delta
Thu 6/411:50 pm
DEN
- JFK
Nonstop3h 55m
Delta
Deal found 5/4![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 5/6. 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 5/272:00 pm
PHL
- DEN
2 stops8h 40m
Southwest
Fri 5/297:00 pm
DEN
- PHL
1 stop13h 50m
Southwest
Deal found 5/6![Southwest logo]()
$288
This United Airlines deal was found by Cheapflights users on 5/2. 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 6/17:59 pm
MDT
- DEN
1 stop6h 31m
United Airlines
Sat 6/66:13 am
DEN
- MDT
1 stop5h 47m
United Airlines
Deal found 5/2![United Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 5/4. 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 8/177:50 pm
JFK
- DEN
Nonstop4h 55m
Delta
Thu 8/206:40 am
DEN
- JFK
Nonstop3h 52m
Delta
Deal found 5/4![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 5/2. 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 7/106:55 am
LGA
- DEN
Nonstop4h 10m
Southwest
Mon 7/136:15 am
DEN
- LGA
Nonstop3h 40m
Southwest
Deal found 5/2![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 5/2. 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 5/236:00 am
EWR
- DEN
Nonstop4h 15m
United Airlines
Mon 5/256:00 am
DEN
- EWR
Nonstop3h 49m
United Airlines
Deal found 5/2![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 5/4. 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 8/209:05 pm
LGA
- DEN
Nonstop4h 10m
Southwest
Sun 8/236:50 am
DEN
- LGA
Nonstop3h 40m
Southwest
Deal found 5/4![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 5/4. 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 10/2412:30 pm
MDT
- DEN
1 stop7h 00m
Delta
Tue 10/273:10 pm
DEN
- MDT
1 stop6h 28m
Delta
Deal found 5/4![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/37:51 am
EWR
- DEN
Nonstop4h 13m
United Airlines
Mon 6/86:00 am
DEN
- EWR
Nonstop3h 49m
United Airlines
Deal found 5/6![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/5. 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 8/295:00 pm
LGA
- DEN
Nonstop4h 48m
Delta
Sat 9/57:00 am
DEN
- LGA
Nonstop3h 52m
Delta
Deal found 5/5![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 5/6. 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 6/16:55 am
LGA
- DEN
Nonstop4h 20m
Southwest
Thu 6/412:30 pm
DEN
- LGA
1 stop6h 55m
Southwest
Deal found 5/6![Southwest logo]()
$328
This United Airlines deal was found by Cheapflights users on 5/6. 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 7/296:49 pm
EWR
- DEN
Nonstop4h 29m
United Airlines
Mon 8/35:50 pm
DEN
- EWR
Nonstop3h 54m
United Airlines
Deal found 5/6![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/5. 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 5/296:33 pm
MDT
- DEN
1 stop8h 00m
Delta
Sun 5/3112:56 am
DEN
- MDT
1 stop8h 11m
Delta
Deal found 5/5![Delta logo]()
$316
This United Airlines deal was found by Cheapflights users on 5/5. 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 8/293:00 pm
LGA
- DEN
1 stop6h 39m
United Airlines
Sat 9/55:35 pm
DEN
- LGA
Nonstop3h 54m
United Airlines
Deal found 5/5![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 5/5. 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 10/176:10 am
MDT
- DEN
1 stop6h 02m
Delta
Fri 10/236:05 am
DEN
- MDT
1 stop6h 04m
Delta
Deal found 5/5![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 5/2. 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 8/127:20 pm
PIT
- DEN
1 stop4h 40m
Southwest
Tue 8/1811:15 am
DEN
- PIT
2 stops7h 30m
Southwest
Deal found 5/2![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 5/6. 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 5/247:40 am
LGA
- DEN
Nonstop4h 20m
Delta
Wed 5/277:10 am
DEN
- LGA
Nonstop3h 41m
Delta
Deal found 5/6![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 5/6. 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 7/298:30 am
PIT
- DEN
Nonstop3h 29m
United Airlines
Wed 8/57:40 am
DEN
- PIT
1 stop7h 30m
United Airlines
Deal found 5/6![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 5/2. 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 6/16:35 pm
PIT
- DEN
Nonstop3h 30m
Southwest
Mon 6/85:45 am
DEN
- PIT
1 stop4h 45m
Southwest
Deal found 5/2![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 5/6. 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 10/1310:50 am
PIT
- DEN
1 stop7h 06m
United Airlines
Thu 10/225:31 pm
DEN
- PIT
Nonstop3h 06m
United Airlines
Deal found 5/6![United Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 5/4. 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 5/187:55 pm
JFK
- DEN
Nonstop4h 45m
Delta
Fri 5/226:30 am
DEN
- JFK
Nonstop3h 50m
Delta
Deal found 5/4![Delta logo]()
$342
This Southwest deal was found by Cheapflights users on 5/4. 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 5/292:15 pm
PHL
- DEN
2 stops7h 05m
Southwest
Sat 6/62:05 pm
DEN
- PHL
2 stops7h 30m
Southwest
Deal found 5/4![Southwest logo]()
$378
Last-minute flights from Pennsylvania to ColoradoDiscover last-minute flight deals from Pennsylvania to Colorado. Data last updated May 7, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Colorado. Data last updated May 7, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 5/2. 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 5/158:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Sat 5/1611:59 pm
DEN
- PHL
Nonstop3h 38m
Frontier
Deal found 5/2![Frontier logo]()
$205
This Frontier deal was found by Cheapflights users on 5/2. 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.
Fri 5/158:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Mon 5/186:03 am
DEN
- PHL
1 stop9h 49m
Frontier
Deal found 5/2![Frontier logo]()
$213
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Mon 5/186:03 am
DEN
- PHL
1 stop9h 49m
Frontier
Deal found 5/3![Frontier logo]()
$199
This Frontier deal was found by Cheapflights users on 5/3. 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 5/1911:07 am
IAD
- DEN
1 stop13h 17m
Frontier
Thu 5/2811:54 pm
DEN
- IAD
1 stop8h 18m
Frontier
Deal found 5/3![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/238:47 pm
IAD
- DEN
2 stops18h 47m
Frontier
Sat 5/3011:54 pm
DEN
- IAD
1 stop8h 18m
Frontier
Deal found 5/2![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/2611:07 am
IAD
- DEN
2 stops12h 34m
Frontier
Fri 5/299:54 pm
DEN
- IAD
1 stop12h 47m
Frontier
Deal found 5/3![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/2611:07 am
IAD
- DEN
2 stops12h 34m
Frontier
Sat 5/3011:54 pm
DEN
- IAD
1 stop8h 18m
Frontier
Deal found 5/2![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/2611:07 am
IAD
- DEN
2 stops12h 34m
Frontier
Mon 6/111:54 pm
DEN
- IAD
1 stop8h 18m
Frontier
Deal found 5/2![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/211:07 am
IAD
- DEN
2 stops12h 34m
Frontier
Tue 6/99:58 am
DEN
- IAD
1 stop11h 19m
Frontier
Deal found 5/2![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/312:24 pm
IAD
- DEN
2 stops12h 00m
Frontier
Mon 6/86:30 am
DEN
- IAD
1 stop8h 57m
Frontier
Deal found 5/2![Frontier logo]()
$207
This Frontier deal was found by Cheapflights users on 5/3. 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.
Fri 6/59:12 am
IAD
- DEN
1 stop14h 15m
Frontier
Tue 6/1611:49 pm
DEN
- IAD
1 stop11h 04m
Frontier
Deal found 5/3![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/238:57 pm
IAD
- DEN
1 stop14h 06m
Frontier
Wed 7/15:05 am
DEN
- IAD
2 stops10h 26m
Frontier
Deal found 5/2![Frontier logo]()
$216
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 May 7, 2026.
Search for one-way flight options from Pennsylvania to Colorado. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
This Trip.com deal was found by Cheapflights users on 5/4. 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.
Tue 6/210:29 pm
EWR
- DEN
1 stop12h 36m
Frontier
Deal found 5/4![Frontier logo]()
$76
This Kissandfly.com deal was found by Cheapflights users on 5/4. 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.
Fri 8/148:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 5/4![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/275:55 am
EWR
- DEN
1 stop18h 29m
Frontier
Deal found 5/4![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 5/2. 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.
Sun 5/247:20 am
PHL
- DEN
1 stop9h 12m
Frontier
Deal found 5/2![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 5/4. 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 5/265:55 am
EWR
- DEN
1 stop10h 09m
Frontier
Deal found 5/4![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 5/2. 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 5/232:31 pm
PHL
- DEN
1 stop26h 01m
Frontier
Deal found 5/2![Frontier logo]()
$85
This Frontier deal was found by Cheapflights users on 5/2. 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 5/2310:29 pm
EWR
- DEN
1 stop12h 36m
Frontier
Deal found 5/2![Frontier logo]()
$86
This Trip.com deal was found by Cheapflights users on 5/5. 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.
Fri 5/2910:29 pm
EWR
- DEN
1 stop25h 55m
Frontier
Deal found 5/5![Frontier logo]()
$89
This Trip.com deal was found by Cheapflights users on 5/4. 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 5/285:55 am
EWR
- DEN
1 stop18h 29m
Frontier
Deal found 5/4![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/45:55 am
EWR
- DEN
1 stop10h 09m
Frontier
Deal found 5/4![Frontier logo]()
$92
This Frontier deal was found by Cheapflights users on 5/3. 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 5/168:35 pm
PHL
- DEN
Nonstop4h 29m
Frontier
Deal found 5/3![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/2410:29 pm
EWR
- DEN
1 stop12h 36m
Frontier
Deal found 5/4![Frontier logo]()
$95
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 May 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Kiwi.com) |
One-way from | $76 (Trip.com) |
Popular in | March |
Cheapest in | August |
Average price | $304 |
Good round-trip deal | $185 or less |
Good one-way deal | $148 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 May 7, 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
LGA - DEN
LGADEN
New York LaGuardia
Thu 6/4
10:25 am-12:45 pm
Nonstop4h 20m
Denver Intl
Wed 6/10
6:10 am-11:50 am
Nonstop3h 40m
$257
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Tue 7/28
4:59 pm-7:35 pm
Nonstop4h 36m
Denver Intl
Thu 8/6
1:59 pm-7:53 pm
Nonstop3h 54m
$277
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Mon 5/18
7:55 pm-10:40 pm
Nonstop4h 45m
Denver Intl
Wed 5/27
6:30 am-12:20 pm
Nonstop3h 50m
$287
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Thu 5/28
8:30 am-11:00 am
Nonstop4h 30m
Denver Intl
Mon 6/1
11:50 pm-5:45 am
Nonstop3h 55m
$287
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Thu 7/2
8:55 pm-11:25 pm
Nonstop4h 30m
Denver Intl
Tue 7/7
8:10 am-4:50 pm
1 stop6h 40m
$287
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Sat 5/30
8:30 am-11:02 am
Nonstop4h 32m
Denver Intl
Thu 6/4
11:50 pm-5:45 am
Nonstop3h 55m
$287
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Wed 5/27
2:00 pm-8:40 pm
2 stops8h 40m
Denver Intl
Fri 5/29
7:00 pm-10:50 am
1 stop13h 50m
$288
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Mon 8/10
8:20 pm-10:59 pm
Nonstop4h 39m
Denver Intl
Fri 8/14
11:59 pm-5:50 am
Nonstop3h 51m
$297
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Mon 8/17
7:50 pm-10:45 pm
Nonstop4h 55m
Denver Intl
Thu 8/20
6:40 am-12:32 pm
Nonstop3h 52m
$297
Quickest round-trip
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Fri 7/10
6:55 am-9:05 am
Nonstop4h 10m
Denver Intl
Mon 7/13
6:15 am-11:55 am
Nonstop3h 40m
$297
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
IAD-DEN
JFK-DEN
LGA-DEN
MDT-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
IAD-DEN
JFK-DEN
LGA-DEN
How far ahead should I book a flight from Pennsylvania to Colorado?
Booking 31 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 month to book a flight from Pennsylvania to Colorado?
Currently, September is the cheapest month in which you can book a flight from Pennsylvania to Colorado (average of $273). Flying from Pennsylvania to Colorado in December is currently the most expensive (average of $510). 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 May 7, 2026.
It’s typically best to fly out from Pennsylvania to Colorado in the evening. Doing so could potentially save you 50% on the flight price compared to flying in the morning, which is usually more expensive.
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 May 2, 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. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 May 7, 2026.
The most flights from USPA to USCO are scheduled on a Thursday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Pennsylvania to Colorado?
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 May 7, 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.
Food
7.0
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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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 May 7, 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 May 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$72 | Average$233 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$116 | Average$221 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$128 | Average$378 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$130 | Average$347 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$442 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$184 | Average$430 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$452 | FlexibilityNo cancel fee | On-time63% |