$83+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
May 19 — May 261
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 April 19, 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 April 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/14![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Thu 5/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/88:46 pm
PDX
- DEN
1 stop5h 39m
Frontier
Sun 5/103:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/14![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 6/811:15 am
PDX
- DEN
1 stop15h 43m
Frontier
Tue 6/92:50 pm
DEN
- PDX
Nonstop2h 45m
Frontier
Deal found 4/14![Frontier logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/2112:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2810:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/14![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/3111:15 am
PDX
- DEN
1 stop15h 10m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/79:46 pm
PDX
- DEN
1 stop10h 52m
Frontier
Sun 5/103:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$132
This Cheapflightsfares deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/305:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Tue 6/23:15 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$133
This deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Thu 5/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/15![Frontier logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/88:46 pm
PDX
- DEN
1 stop20h 18m
Frontier
Sat 5/910:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 4/14![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/305:31 pm
PDX
- DEN
2 stops32h 54m
Frontier
Sat 6/63:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/17![Frontier logo]()
$140
This Southwest deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 6/55:00 pm
PDX
- COS
1 stop7h 20m
Southwest
Sun 6/75:35 am
COS
- PDX
1 stop4h 55m
Southwest
Deal found 4/17![Southwest logo]()
$217
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 April 19, 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 April 19, 2026.
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 6/95:55 pm
PDX
- COS
1 stop4h 50m
Southwest
Mon 6/155:35 am
COS
- PDX
1 stop7h 05m
Southwest
Deal found 4/15![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/1910:52 am
PDX
- COS
2 stops10h 30m
Delta
Wed 5/2011:55 am
COS
- PDX
1 stop5h 05m
Delta
Deal found 4/14![Delta logo]()
$222
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/295:00 am
PDX
- DRO
1 stop4h 54m
United Airlines
Sun 5/35:30 am
DRO
- PDX
1 stop5h 08m
United Airlines
Deal found 4/14![United Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/225:10 am
PDX
- EGE
1 stop7h 21m
American Airlines
Sun 5/242:12 pm
EGE
- PDX
1 stop9h 39m
American Airlines
Deal found 4/19![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 4/19. 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.
Wed 6/33:30 pm
PDX
- DEN
1 stop7h 20m
Delta
Wed 6/106:30 am
DEN
- PDX
1 stop6h 13m
Delta
Deal found 4/19![Delta logo]()
$252
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 6/31:10 pm
PDX
- COS
2 stops8h 10m
Southwest
Tue 6/97:05 pm
COS
- PDX
1 stop5h 45m
Southwest
Deal found 4/15![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 6/45:05 pm
PDX
- GJT
1 stop3h 55m
Delta
Sun 6/76:56 pm
GJT
- PDX
1 stop5h 50m
Delta
Deal found 4/16![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/15:00 am
PDX
- GUC
1 stop6h 39m
United Airlines
Tue 5/51:36 pm
GUC
- PDX
2 stops11h 57m
United Airlines
Deal found 4/16![United Airlines logo]()
$304
This Southwest deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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.
Sat 6/65:00 am
PDX
- COS
1 stop5h 20m
Southwest
Wed 6/106:00 am
COS
- PDX
2 stops7h 00m
Southwest
Deal found 4/17![Southwest logo]()
$300
This Expedia deal was found by Cheapflights users on 4/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:27 pm
PDX
- ASE
1 stop18h 54m
Alaska Airlines
Sun 6/215:51 pm
ASE
- PDX
1 stop7h 05m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$673
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/84:15 pm
PDX
- COS
1 stop6h 44m
United Airlines
Tue 5/126:00 am
COS
- PDX
1 stop4h 38m
United Airlines
Deal found 4/15![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 6/185:50 pm
PDX
- DEN
1 stop4h 55m
Delta
Mon 6/226:30 am
DEN
- PDX
1 stop5h 09m
Delta
Deal found 4/16![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Wed 6/36:50 pm
PDX
- COS
1 stop4h 09m
United Airlines
Sat 6/65:30 am
COS
- PDX
1 stop5h 17m
United Airlines
Deal found 4/18![United Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/2811:35 am
PDX
- COS
1 stop6h 50m
Southwest
Sat 5/302:15 pm
COS
- PDX
2 stops8h 45m
Southwest
Deal found 4/16![Southwest logo]()
$312
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/87:23 am
PDX
- EGE
2 stops10h 46m
American Airlines
Mon 5/118:00 am
EGE
- PDX
2 stops14h 35m
American Airlines
Deal found 4/15![American Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 9/245:15 am
PDX
- COS
1 stop6h 56m
United Airlines
Tue 9/2910:30 am
COS
- PDX
1 stop5h 38m
United Airlines
Deal found 4/14![United Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 4/18. 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.
Fri 6/54:25 pm
PDX
- COS
1 stop5h 15m
Southwest
Mon 6/89:05 pm
COS
- PDX
1 stop5h 15m
Southwest
Deal found 4/18![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 4/18. 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.
Fri 6/54:25 pm
PDX
- COS
2 stops7h 55m
Southwest
Sun 6/75:35 am
COS
- PDX
1 stop4h 55m
Southwest
Deal found 4/18![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 7/81:25 pm
PDX
- ASE
1 stop6h 01m
Delta
Wed 7/1512:03 pm
ASE
- PDX
1 stop5h 31m
Delta
Deal found 4/16![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/14:15 pm
PDX
- DEN
Nonstop2h 39m
United Airlines
Tue 5/54:00 pm
DEN
- PDX
Nonstop2h 44m
United Airlines
Deal found 4/15![United Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 7/1211:43 pm
PDX
- EGE
1 stop9h 12m
American Airlines
Wed 7/152:12 pm
EGE
- PDX
1 stop9h 41m
American Airlines
Deal found 4/16![American Airlines logo]()
$463
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 7/95:10 am
PDX
- DEN
2 stops6h 50m
Southwest
Tue 7/145:05 pm
DEN
- PDX
1 stop7h 45m
Southwest
Deal found 4/15![Southwest logo]()
$336
This United Airlines deal was found by Cheapflights users on 4/18. 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 5/55:00 am
PDX
- MTJ
1 stop6h 41m
United Airlines
Sat 5/91:43 pm
MTJ
- PDX
1 stop5h 01m
United Airlines
Deal found 4/18![United Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 4/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:28 pm
PDX
- DRO
1 stop5h 34m
American Airlines
Sun 7/196:43 pm
DRO
- PDX
1 stop5h 38m
American Airlines
Deal found 4/18![American Airlines logo]()
$473
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/205:05 pm
PDX
- GJT
1 stop3h 55m
Delta
Fri 5/226:51 pm
GJT
- PDX
1 stop5h 53m
Delta
Deal found 4/14![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/95:00 am
PDX
- GJT
1 stop4h 43m
United Airlines
Wed 5/136:04 pm
GJT
- PDX
1 stop5h 50m
United Airlines
Deal found 4/14![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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.
Sat 5/167:00 am
PDX
- DEN
2 stops6h 40m
Southwest
Tue 5/194:25 pm
DEN
- PDX
1 stop7h 35m
Southwest
Deal found 4/17![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/75:00 am
PDX
- GJT
1 stop6h 43m
United Airlines
Sun 5/105:30 am
GJT
- PDX
1 stop5h 08m
United Airlines
Deal found 4/14![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 6/87:25 am
PDX
- HDN
2 stops10h 55m
Southwest
Wed 6/108:00 am
HDN
- PDX
1 stop10h 10m
Southwest
Deal found 4/16![Southwest logo]()
$356
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/95:00 am
PDX
- HDN
1 stop6h 33m
United Airlines
Tue 5/121:40 pm
HDN
- PDX
2 stops11h 53m
United Airlines
Deal found 4/15![United Airlines logo]()
$356
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated April 19, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated April 19, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/2112:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2810:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/14![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Thu 5/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$118
This deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Thu 5/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/15![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/79:46 pm
PDX
- DEN
1 stop10h 52m
Frontier
Sun 5/103:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$132
This Cheapflightsfares deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 5/103:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/15![Frontier logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/88:46 pm
PDX
- DEN
1 stop20h 18m
Frontier
Sat 5/910:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 4/14![Frontier logo]()
$139
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Sat 5/910:25 am
PDX
- COS
1 stop4h 15m
Southwest
Sat 5/164:15 pm
COS
- PDX
1 stop6h 30m
Southwest
Deal found 4/15![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Sat 5/97:15 am
PDX
- COS
2 stops9h 11m
United Airlines
Sun 5/106:57 pm
COS
- PDX
1 stop4h 57m
United Airlines
Deal found 4/18![United Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/95:00 am
PDX
- COS
1 stop5h 05m
United Airlines
Sat 5/161:25 pm
COS
- PDX
2 stops8h 33m
United Airlines
Deal found 4/15![United Airlines logo]()
$261
This Cheapflightsfares deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/305:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Tue 6/23:15 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/305:31 pm
PDX
- DEN
2 stops32h 54m
Frontier
Sat 6/63:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/17![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/3111:15 am
PDX
- DEN
1 stop15h 10m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/16![Frontier logo]()
$131
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 April 19, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
This Super.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/2912:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 4/14![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/75:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Deal found 4/17![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 4/19. 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 5/155:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Deal found 4/19![Frontier logo]()
$90
This Super.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/1112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 4/16![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 7/612:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Deal found 4/17![Frontier logo]()
$95
This Cheapflightsfares deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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.
Sun 5/109:46 pm
PDX
- DEN
1 stop10h 52m
Frontier
Deal found 4/17![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 4/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 4/19![Frontier logo]()
$97
This Super.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/2112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 4/15![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 4/19. 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.
Sun 5/1712:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 4/19![Frontier logo]()
$104
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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 5/195:00 am
PDX
- COS
1 stop5h 05m
United Airlines
Deal found 4/16![United Airlines logo]()
$109
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:30 am
PDX
- COS
2 stops10h 44m
Delta
Deal found 4/16![Delta logo]()
$114
This American Airlines deal was found by Cheapflights users on 4/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:10 am
PDX
- MTJ
1 stop7h 20m
American Airlines
Deal found 4/18![American Airlines logo]()
$136
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 April 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $107 (Cheapflightsfares) |
One-way from | $83 (Super.com) |
Popular in | March |
Cheapest in | August |
Average price | $228 |
Good round-trip deal | $287 or less |
Good one-way deal | $157 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 April 19, 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
Tue 6/9
5:55 pm-11:45 pm
1 stop4h 50m
Colorado Springs
Mon 6/15
5:35 am-11:40 am
1 stop7h 05m
$217
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Tue 5/19
10:52 am-10:22 pm
2 stops10h 30m
Colorado Springs
Wed 5/20
11:55 am-4:00 pm
1 stop5h 05m
$222
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 6/3
3:30 pm-11:50 pm
1 stop7h 20m
Denver Intl
Wed 6/10
6:30 am-11:43 am
1 stop6h 13m
$252
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Thu 6/4
5:05 pm-10:00 pm
1 stop3h 55m
Grand Junction Regnl
Sun 6/7
6:56 pm-11:46 pm
1 stop5h 50m
$271
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Wed 6/3
1:10 pm-10:20 pm
2 stops8h 10m
Colorado Springs
Tue 6/9
7:05 pm-11:50 pm
1 stop5h 45m
$272
PortlandDurango
PDX - DRO
PDXDRO
Portland
Wed 4/29
5:00 am-10:54 am
1 stop4h 54m
Durango La Plata County
Sun 5/3
5:30 am-9:38 am
1 stop5h 08m
$288
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 6/18
5:50 pm-11:45 pm
1 stop4h 55m
Denver Intl
Mon 6/22
6:30 am-10:39 am
1 stop5h 09m
$293
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Sat 6/6
5:00 am-11:20 am
1 stop5h 20m
Colorado Springs
Wed 6/10
6:00 am-12:00 pm
2 stops7h 00m
$300
PortlandGunnison
PDX - GUC
PDXGUC
Portland
Fri 5/1
5:00 am-12:39 pm
1 stop6h 39m
Gunnison
Tue 5/5
1:36 pm-12:33 am
2 stops11h 57m
$304
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 5/8
4:15 pm-11:59 pm
1 stop6h 44m
Colorado Springs
Tue 5/12
6:00 am-9:38 am
1 stop4h 38m
$307
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-COS
PDX-DRO
PDX-EGE
PDX-DEN
PDX-GJT
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-COS
PDX-DRO
PDX-EGE
PDX-DEN
What is the cheapest month to book a flight from Portland to Colorado?
Currently, December is the cheapest month in which you can book a flight from Portland to Colorado (average of $29). Flying from Portland to Colorado in April is currently the most expensive (average of $620). 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 April 19, 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 16% on airfare.
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 April 11, 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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 April 19, 2026.
The most flights from PDX to USCO are scheduled on a Friday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Portland 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 April 19, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andHawaiian 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.
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 April 19, 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 7 airlines flying from Portland to Colorado
Discover the top 7 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 April 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$154 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$280 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$208 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$258 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$143 | Average$398 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$345 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$366 | FlexibilityNo cancel fee | On-time71% |