$102+ Cheap flights from Portland (PDX) 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jun 22 — Jun 291
Round-trip
1 adult, Economy
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Cheapest flights from Portland to ColoradoExplore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 23, 2026.
Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 23, 2026.
This Super.com deal was found by Cheapflights users on 5/18. 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 7/312:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Wed 7/82:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 5/18![Frontier logo]()
$174
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 6/115:42 pm
PDX
- DEN
1 stop5h 58m
Frontier
Mon 6/153:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/18![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 5/20. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Fri 6/123:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/20![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 5/18. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sun 6/143:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/18![Frontier logo]()
$179
This Frontier deal was found by Cheapflights users on 5/20. 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 7/412:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Thu 7/163:10 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 5/20![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Mon 6/157:00 am
DEN
- PDX
1 stop5h 41m
Frontier
Deal found 5/18![Frontier logo]()
$181
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 6/1812:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Mon 6/223:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/20![Frontier logo]()
$182
This Super.com deal was found by Cheapflights users on 5/18. 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 6/812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Fri 6/123:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/18![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1812:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Sat 6/207:00 am
DEN
- PDX
1 stop5h 41m
Frontier
Deal found 5/20![Frontier logo]()
$185
This Super.com deal was found by Cheapflights users on 5/23. 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 7/1012:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 5/23![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 8/125:21 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Fri 8/213:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/23![Frontier logo]()
$187
This Frontier deal was found by Cheapflights users on 5/23. 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 8/255:42 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Thu 8/273:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/23![Frontier logo]()
$188
Best flights from Portland to ColoradoDiscover carefully curated flight deals from Portland to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 23, 2026.
Discover carefully curated flight deals from Portland to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 23, 2026.
This Delta deal was found by Cheapflights users on 5/18. 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 7/35:24 pm
PDX
- COS
1 stop4h 18m
Delta
Wed 7/88:10 am
COS
- PDX
1 stop5h 00m
Delta
Deal found 5/18![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 5/20. 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 7/175:00 am
PDX
- COS
1 stop5h 45m
Southwest
Wed 7/227:55 pm
COS
- PDX
1 stop5h 10m
Southwest
Deal found 5/20![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 8/176:04 pm
PDX
- DEN
Nonstop2h 36m
Alaska Airlines
Mon 8/318:08 am
DEN
- PDX
Nonstop2h 42m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 5/21. 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 7/86:50 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Tue 7/141:27 pm
DEN
- PDX
Nonstop2h 46m
United Airlines
Deal found 5/21![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 5/20. 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.
Fri 6/53:30 pm
PDX
- GJT
1 stop5h 25m
American Airlines
Mon 6/84:56 pm
GJT
- PDX
1 stop8h 54m
American Airlines
Deal found 5/20![American Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 5/23. 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 7/245:00 pm
PDX
- COS
1 stop7h 25m
Southwest
Mon 7/276:10 am
COS
- PDX
2 stops9h 00m
Southwest
Deal found 5/23![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 5/23. 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 8/205:08 pm
PDX
- COS
1 stop4h 20m
Delta
Sun 8/236:16 pm
COS
- PDX
1 stop6h 23m
Delta
Deal found 5/23![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 5/18. 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 6/266:50 pm
PDX
- DEN
Nonstop2h 39m
United Airlines
Mon 6/296:00 am
DEN
- PDX
1 stop5h 20m
United Airlines
Deal found 5/18![United Airlines logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Wed 6/102:55 pm
PDX
- DEN
1 stop7h 35m
Alaska Airlines
Tue 6/168:00 am
DEN
- PDX
Nonstop2h 46m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 5/19. 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 6/255:00 am
PDX
- DEN
Nonstop2h 31m
United Airlines
Mon 6/295:15 am
DEN
- PDX
1 stop6h 05m
United Airlines
Deal found 5/19![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 5/19. 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 6/185:30 am
PDX
- DEN
1 stop5h 48m
Delta
Sun 6/216:30 am
DEN
- PDX
1 stop5h 09m
Delta
Deal found 5/19![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 5/18. 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 9/224:00 pm
PDX
- DEN
Nonstop2h 30m
Southwest
Sat 9/264:50 pm
DEN
- PDX
Nonstop2h 35m
Southwest
Deal found 5/18![Southwest logo]()
$297
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Sun 7/2611:41 pm
PDX
- EGE
1 stop9h 12m
American Airlines
Wed 7/292:12 pm
EGE
- PDX
1 stop9h 39m
American Airlines
Deal found 5/21![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/22. 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 8/2711:17 am
PDX
- DEN
1 stop5h 31m
Delta
Mon 8/315:40 am
DEN
- PDX
1 stop4h 23m
Delta
Deal found 5/22![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 5/22. 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 8/265:00 am
PDX
- DRO
1 stop6h 32m
United Airlines
Wed 9/21:34 pm
DRO
- PDX
2 stops10h 11m
United Airlines
Deal found 5/22![United Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 5/22. 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 8/114:00 pm
PDX
- COS
1 stop4h 45m
Southwest
Tue 8/187:20 am
COS
- PDX
2 stops7h 45m
Southwest
Deal found 5/22![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 5/20. 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 7/81:15 pm
PDX
- DEN
1 stop5h 46m
Delta
Fri 7/175:40 am
DEN
- PDX
1 stop3h 57m
Delta
Deal found 5/20![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 5/23. 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 6/115:00 am
PDX
- DRO
1 stop6h 28m
United Airlines
Mon 6/155:15 am
DRO
- PDX
1 stop5h 32m
United Airlines
Deal found 5/23![United Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 5/23. 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 8/265:54 pm
PDX
- DEN
1 stop5h 04m
Delta
Sat 8/296:44 pm
DEN
- PDX
1 stop4h 39m
Delta
Deal found 5/23![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 5/22. 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 8/184:00 pm
PDX
- COS
1 stop4h 45m
Southwest
Thu 8/2012:20 pm
COS
- PDX
2 stops7h 55m
Southwest
Deal found 5/22![Southwest logo]()
$317
This American Airlines deal was found by Cheapflights users on 5/19. 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.
Mon 6/2211:43 pm
PDX
- EGE
1 stop9h 10m
American Airlines
Tue 6/232:12 pm
EGE
- PDX
1 stop9h 39m
American Airlines
Deal found 5/19![American Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 5/23. 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 8/309:45 am
PDX
- DEN
1 stop4h 17m
Delta
Sat 9/56:44 pm
DEN
- PDX
1 stop4h 39m
Delta
Deal found 5/23![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 5/21. 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 9/264:07 pm
PDX
- COS
1 stop4h 56m
United Airlines
Tue 9/291:15 pm
COS
- PDX
2 stops8h 50m
United Airlines
Deal found 5/21![United Airlines logo]()
$312
This Southwest deal was found by Cheapflights users on 5/22. 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 9/106:20 am
PDX
- DEN
2 stops8h 00m
Southwest
Thu 9/105:40 pm
DEN
- PDX
1 stop5h 05m
Southwest
Deal found 5/22![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 5/23. 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 10/295:30 am
PDX
- GJT
2 stops6h 10m
Delta
Thu 11/51:16 pm
GJT
- PDX
2 stops9h 48m
Delta
Deal found 5/23![Delta logo]()
$281
This American Airlines deal was found by Cheapflights users on 5/19. 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.
Fri 6/195:28 pm
PDX
- DRO
1 stop5h 31m
American Airlines
Sun 6/216:48 pm
DRO
- PDX
1 stop5h 20m
American Airlines
Deal found 5/19![American Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 5/19. 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 6/195:00 pm
PDX
- COS
1 stop7h 20m
Southwest
Sun 6/215:35 am
COS
- PDX
2 stops7h 55m
Southwest
Deal found 5/19![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 5/20. 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 6/55:00 am
PDX
- HDN
1 stop6h 24m
United Airlines
Sat 6/61:20 pm
HDN
- PDX
1 stop5h 26m
United Airlines
Deal found 5/20![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 5/19. 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 9/245:05 pm
PDX
- COS
1 stop4h 24m
Delta
Sun 9/275:55 pm
COS
- PDX
1 stop6h 46m
Delta
Deal found 5/19![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 5/18. 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 6/25:00 am
PDX
- HDN
1 stop6h 24m
United Airlines
Sat 6/61:20 pm
HDN
- PDX
1 stop5h 26m
United Airlines
Deal found 5/18![United Airlines logo]()
$351
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated May 23, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated May 23, 2026 and is based on user searches.
This Jettzy deal was found by Cheapflights users on 5/19. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:15 am
PDX
- DEN
1 stop5h 49m
Frontier
Mon 6/83:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/19![Frontier logo]()
$189
This Super.com deal was found by Cheapflights users on 5/18. 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 6/812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Fri 6/123:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/18![Frontier logo]()
$183
This Frontier deal was found by Cheapflights users on 5/19. 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.
Mon 6/812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Thu 6/1112:47 pm
DEN
- PDX
1 stop8h 00m
Frontier
Deal found 5/19![Frontier logo]()
$188
This Super.com deal was found by Cheapflights users on 5/20. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Fri 6/123:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/20![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 5/18. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sun 6/143:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/18![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Multiple Airlines
Tue 7/78:00 am
DEN
- PDX
Nonstop2h 46m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/95:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Mon 6/157:00 am
DEN
- PDX
1 stop5h 41m
Frontier
Deal found 5/18![Frontier logo]()
$181
This Super.com deal was found by Cheapflights users on 5/21. 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 6/105:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Mon 6/153:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/21![Frontier logo]()
$186
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 6/115:42 pm
PDX
- DEN
1 stop5h 58m
Frontier
Mon 6/153:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/18![Frontier logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 6/1812:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Mon 6/223:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 5/20![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1812:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Sat 6/207:00 am
DEN
- PDX
1 stop5h 41m
Frontier
Deal found 5/20![Frontier logo]()
$185
This Southwest deal was found by Cheapflights users on 5/23. 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 6/195:00 pm
PDX
- COS
1 stop7h 20m
Southwest
Mon 6/229:05 pm
COS
- PDX
1 stop5h 15m
Southwest
Deal found 5/23![Southwest logo]()
$217
One-way flights from Portland to ColoradoSearch for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated May 23, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated May 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 8/2012:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Deal found 5/23![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 7/45:42 pm
PDX
- DEN
1 stop5h 58m
Frontier
Deal found 5/19![Frontier logo]()
$107
This Delta deal was found by Cheapflights users on 5/20. 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 5/295:45 am
PDX
- COS
1 stop4h 30m
Delta
Deal found 5/20![Delta logo]()
$109
This Super.com deal was found by Cheapflights users on 5/18. 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 7/95:42 pm
PDX
- DEN
1 stop5h 54m
Frontier
Deal found 5/18![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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.
Tue 6/25:46 pm
PDX
- DEN
Nonstop2h 52m
Frontier
Deal found 5/19![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 6/198:42 pm
PDX
- DEN
1 stop6h 16m
Frontier
Deal found 5/18![Frontier logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 7/212:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Deal found 5/20![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 5/21. 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 9/293:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Deal found 5/21![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 5/19. 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 6/1212:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Deal found 5/19![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/176:59 pm
PDX
- DEN
1 stop7h 59m
Frontier
Deal found 5/19![Frontier logo]()
$117
This Southwest deal was found by Cheapflights users on 5/18. 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 6/87:40 pm
PDX
- DEN
Nonstop2h 25m
Southwest
Deal found 5/18![Southwest logo]()
$119
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 5/3012:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 5/20![Frontier logo]()
$122
Find flight deals from Portland to Colorado
Keep the following information in mind while searching for Portland to Colorado flight deals. Data was last updated May 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $176 (Super.com) |
One-way from | $102 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $258 |
Good round-trip deal | $300 or less |
Good one-way deal | $163 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 23, 2026.
Use the filters below to find and compare flights from Portland to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 7/3
5:24 pm-10:42 pm
1 stop4h 18m
Colorado Springs
Wed 7/8
8:10 am-12:10 pm
1 stop5h 00m
$217
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 7/17
5:00 am-11:45 am
1 stop5h 45m
Colorado Springs
Wed 7/22
7:55 pm-12:05 am
1 stop5h 10m
$217
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 7/24
5:00 pm-1:25 am
1 stop7h 25m
Colorado Springs
Mon 7/27
6:10 am-2:10 pm
2 stops9h 00m
$222
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Thu 8/20
5:08 pm-10:28 pm
1 stop4h 20m
Colorado Springs
Sun 8/23
6:16 pm-11:39 pm
1 stop6h 23m
$247
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 8/17
6:04 pm-9:40 pm
Nonstop2h 36m
Denver Intl
Mon 8/31
8:08 am-9:50 am
Nonstop2h 42m
$257
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 7/8
6:50 pm-10:28 pm
Nonstop2h 38m
Denver Intl
Tue 7/14
1:27 pm-3:13 pm
Nonstop2h 46m
$257
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 6/26
6:50 pm-10:29 pm
Nonstop2h 39m
Denver Intl
Mon 6/29
6:00 am-10:20 am
1 stop5h 20m
$267
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 6/10
2:55 pm-11:30 pm
1 stop7h 35m
Denver Intl
Tue 6/16
8:00 am-9:46 am
Nonstop2h 46m
$267
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 6/25
5:00 am-8:31 am
Nonstop2h 31m
Denver Intl
Mon 6/29
5:15 am-10:20 am
1 stop6h 05m
$267
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Fri 6/5
3:30 pm-9:55 pm
1 stop5h 25m
Grand Junction Regnl
Mon 6/8
4:56 pm-12:50 am
1 stop8h 54m
$271
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Portland to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Portland with our price prediction graph.
PDX-DEN
PDX-COS
PDX-GJT
PDX-EGE
PDX-DRO
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 Portland to Colorado
PDX-USCO
PDX-DEN
PDX-COS
PDX-GJT
PDX-EGE
What is the cheapest month to book a flight from Portland to Colorado?
Currently, April is the cheapest month in which you can book a flight from Portland to Colorado (average of $28). Flying from Portland to Colorado in November is currently the most expensive (average of $554). 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 PDX to CO?
Find hourly flight availability from Portland 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 23, 2026.
One of the essential ways to save on airfare from Portland to Colorado is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.
Weekly flight availability from Portland to Colorado
Explore weekly flight availability from Portland 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 23, 2026.
The most flights from PDX to USCO are scheduled on a Friday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Portland to Colorado?
How far ahead should I book a flight from Portland to Colorado?
The best time to book flights from Portland to Colorado is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Portland to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Portland to Colorado. Price data was last updated on May 23, 2026.
Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday mornings 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 May 23, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andUnited Airlines from Portland to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Portland 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 Portland to Colorado
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Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Colorado by cabin class
Find flights from Portland to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Colorado flights
Browse other Portland and Colorado flight options. Last updated on May 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Colorado flights
Consider these flights traveling from Portland to Colorado.
Top 8 airlines flying from Portland to Colorado
Discover the top 8 airlines that operate flights from Portland 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$155 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$287 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$188 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$126 | Average$244 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$262 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$302 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$147 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$403 | FlexibilityNo cancel fee | On-time71% |