$75+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
May 24 — May 311
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 24, 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 24, 2026.
This Frontier deal was found by Cheapflights users on 4/20. 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 9/512:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Sun 9/63:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 4/20![Frontier logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Thu 5/283:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/21![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Wed 5/278:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Wed 5/2010:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 4/22![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Wed 5/208:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$134
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/710:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 4/22![Frontier logo]()
$137
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares 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
Thu 5/143:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/23![Frontier logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 5/187:00 am
DEN
- PDX
1 stop5h 50m
Frontier
Deal found 4/22![Frontier logo]()
$140
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Tue 5/268:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:31 pm
PDX
- DEN
1 stop15h 33m
Frontier
Tue 6/92:50 pm
DEN
- PDX
Nonstop2h 45m
Frontier
Deal found 4/23![Frontier logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sat 5/307:00 am
DEN
- PDX
1 stop5h 50m
Frontier
Deal found 4/20![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 4/22. 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 Frontier 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
Mon 5/113:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/22![Frontier logo]()
$144
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 24, 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 24, 2026.
This United Airlines deal was found by Cheapflights users on 4/22. 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 5/207:15 am
PDX
- DEN
1 stop6h 44m
United Airlines
Wed 5/279:15 pm
DEN
- PDX
Nonstop2h 43m
United Airlines
Deal found 4/22![United Airlines logo]()
$209
This Southwest deal was found by Cheapflights users on 4/22. 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.
Fri 5/2911:35 am
PDX
- COS
1 stop6h 50m
Southwest
Mon 6/18:00 pm
COS
- PDX
1 stop5h 25m
Southwest
Deal found 4/22![Southwest logo]()
$234
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/225:05 pm
PDX
- DEN
1 stop4h 35m
Delta
Fri 5/296:19 pm
DEN
- PDX
1 stop6h 25m
Delta
Deal found 4/23![Delta logo]()
$251
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Thu 5/285:28 pm
PDX
- DRO
1 stop5h 36m
American Airlines
Tue 6/26:00 am
DRO
- PDX
1 stop7h 55m
American Airlines
Deal found 4/21![American Airlines logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:45 am
PDX
- DEN
1 stop7h 26m
Alaska Airlines
Tue 5/126:45 am
DEN
- PDX
1 stop8h 05m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 4/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:05 pm
PDX
- COS
1 stop4h 17m
Delta
Tue 5/1211:55 am
COS
- PDX
1 stop5h 05m
Delta
Deal found 4/21![Delta logo]()
$253
This Southwest deal was found by Cheapflights users on 4/20. 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.
Thu 8/206:20 am
PDX
- COS
1 stop5h 25m
Southwest
Thu 8/272:15 pm
COS
- PDX
1 stop6h 05m
Southwest
Deal found 4/20![Southwest logo]()
$281
This Delta deal was found by Cheapflights users on 4/20. 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 7/173:30 pm
PDX
- DEN
1 stop7h 12m
Delta
Mon 7/206:30 am
DEN
- PDX
1 stop6h 13m
Delta
Deal found 4/20![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:15 am
PDX
- DRO
2 stops8h 51m
United Airlines
Wed 5/135:30 am
DRO
- PDX
1 stop5h 08m
United Airlines
Deal found 4/24![United Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 4/23. 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 8/143:25 pm
PDX
- COS
1 stop5h 25m
Southwest
Tue 8/187:20 am
COS
- PDX
2 stops7h 45m
Southwest
Deal found 4/23![Southwest logo]()
$289
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 7/16:00 am
PDX
- DEN
1 stop4h 51m
Delta
Mon 7/136:30 am
DEN
- PDX
1 stop5h 07m
Delta
Deal found 4/19![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 7/55:00 am
PDX
- DEN
Nonstop2h 31m
United Airlines
Tue 7/75:15 am
DEN
- PDX
1 stop6h 05m
United Airlines
Deal found 4/23![United Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 4/20. 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 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 4/20![American Airlines logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:50 pm
PDX
- DEN
Nonstop2h 47m
Alaska Airlines
Mon 5/256:40 am
DEN
- PDX
1 stop28h 06m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Tue 5/55:00 am
PDX
- GUC
1 stop6h 39m
United Airlines
Sat 5/97:10 am
GUC
- PDX
2 stops10h 23m
United Airlines
Deal found 4/20![United Airlines logo]()
$304
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:45 pm
PDX
- COS
2 stops7h 35m
Southwest
Fri 5/1511:30 am
COS
- PDX
1 stop11h 10m
Southwest
Deal found 4/24![Southwest logo]()
$308
This Delta deal was found by Cheapflights users on 4/23. 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 6/245:24 pm
PDX
- DEN
1 stop4h 17m
Delta
Sun 6/285:40 am
DEN
- PDX
1 stop3h 57m
Delta
Deal found 4/23![Delta logo]()
$282
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 6/35:00 am
PDX
- GJT
1 stop6h 31m
United Airlines
Sat 6/61:33 pm
GJT
- PDX
2 stops10h 15m
United Airlines
Deal found 4/23![United Airlines logo]()
$308
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.
Sun 6/285:50 pm
PDX
- DEN
1 stop4h 55m
Delta
Sun 7/56:30 am
DEN
- PDX
1 stop6h 13m
Delta
Deal found 4/19![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 4/23. 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 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
1 stop9h 59m
American Airlines
Deal found 4/23![American Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:25 am
PDX
- COS
2 stops8h 25m
Southwest
Mon 9/141:30 pm
COS
- PDX
1 stop6h 45m
Southwest
Deal found 4/21![Southwest logo]()
$341
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 5/85:00 am
PDX
- DRO
1 stop5h 06m
United Airlines
Wed 5/135:30 am
DRO
- PDX
2 stops8h 05m
United Airlines
Deal found 4/23![United Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 4/20. 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.
Sun 6/285:50 pm
PDX
- DEN
1 stop4h 55m
Delta
Tue 6/305:40 am
DEN
- PDX
1 stop3h 57m
Delta
Deal found 4/20![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:55 pm
PDX
- COS
2 stops10h 05m
Southwest
Sun 5/318:05 pm
COS
- PDX
1 stop6h 20m
Southwest
Deal found 4/21![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 4/22. 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.
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 4/22![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:05 pm
PDX
- COS
1 stop4h 17m
Delta
Mon 6/88:14 am
COS
- PDX
2 stops9h 28m
Delta
Deal found 4/24![Delta logo]()
$333
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:00 am
PDX
- DEN
2 stops6h 40m
Southwest
Sat 7/411:30 am
DEN
- PDX
2 stops9h 55m
Southwest
Deal found 4/19![Southwest logo]()
$376
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:15 am
PDX
- HDN
2 stops12h 02m
United Airlines
Wed 5/131:40 pm
HDN
- PDX
2 stops11h 53m
United Airlines
Deal found 4/24![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 4/21. 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 6/2111:43 pm
PDX
- EGE
1 stop9h 10m
American Airlines
Thu 6/2510:33 am
EGE
- PDX
1 stop8h 36m
American Airlines
Deal found 4/21![American Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 5/97:15 am
PDX
- DEN
1 stop6h 44m
United Airlines
Mon 5/119:05 pm
DEN
- PDX
Nonstop2h 49m
United Airlines
Deal found 4/22![United Airlines logo]()
$345
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated April 24, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/22. 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 Frontier 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
Mon 5/113:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/22![Frontier logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares 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
Thu 5/143:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/23![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Wed 5/2010:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 4/22![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Wed 5/208:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$134
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 5/187:00 am
DEN
- PDX
1 stop5h 50m
Frontier
Deal found 4/22![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 4/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 5/246:10 am
DEN
- PDX
1 stop5h 10m
Frontier
Deal found 4/22![Frontier logo]()
$145
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:31 pm
PDX
- DEN
1 stop15h 33m
Frontier
Tue 6/92:50 pm
DEN
- PDX
Nonstop2h 45m
Frontier
Deal found 4/23![Frontier logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Thu 5/283:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/21![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Wed 5/278:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$131
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Tue 5/268:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$141
This Expedia deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:46 pm
PDX
- DEN
Nonstop2h 52m
Multiple Airlines
Sat 5/308:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$147
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sat 5/307:00 am
DEN
- PDX
1 stop5h 50m
Frontier
Deal found 4/20![Frontier logo]()
$143
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 24, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:00 pm
PDX
- COS
1 stop4h 45m
Southwest
Deal found 4/21![Southwest logo]()
$75
This Delta deal was found by Cheapflights users on 4/23. 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 8/121:00 pm
PDX
- COS
2 stops8h 29m
Delta
Deal found 4/23![Delta logo]()
$80
This Southwest deal was found by Cheapflights users on 4/20. 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.
Wed 5/276:40 am
PDX
- DEN
Nonstop2h 25m
Southwest
Deal found 4/20![Southwest logo]()
$81
This Super.com deal was found by Cheapflights users on 4/20. 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.
Wed 4/2912:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 4/20![Frontier logo]()
$83
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Wed 8/123:43 pm
PDX
- DEN
1 stop6h 59m
United Airlines
Deal found 4/20![United Airlines logo]()
$85
This Booking.com deal was found by Cheapflights users on 4/23. 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 Booking.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 4/23![Frontier logo]()
$86
This Delta deal was found by Cheapflights users on 4/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:01 pm
PDX
- COS
1 stop4h 21m
Delta
Deal found 4/21![Delta logo]()
$88
This Super.com deal was found by Cheapflights users on 4/22. 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 Super.com 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
Deal found 4/22![Frontier logo]()
$89
This Delta deal was found by Cheapflights users on 4/20. 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 5/131:40 pm
PDX
- DEN
1 stop4h 35m
Delta
Deal found 4/20![Delta logo]()
$90
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Deal found 4/19![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 4/20. 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.
Fri 5/1512:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 4/20![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 4/21. 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.
Thu 5/79:46 pm
PDX
- DEN
1 stop10h 52m
Frontier
Deal found 4/21![Frontier logo]()
$95
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 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $118 (Frontier) |
One-way from | $81 (Southwest) |
Popular in | March |
Cheapest in | August |
Average price | $232 |
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 24, 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
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 5/20
7:15 am-2:59 pm
1 stop6h 44m
Denver Intl
Wed 5/27
9:15 pm-10:58 pm
Nonstop2h 43m
$209
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 5/29
11:35 am-7:25 pm
1 stop6h 50m
Colorado Springs
Mon 6/1
8:00 pm-12:25 am
1 stop5h 25m
$234
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 5/22
5:05 pm-10:40 pm
1 stop4h 35m
Denver Intl
Fri 5/29
6:19 pm-11:44 pm
1 stop6h 25m
$251
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 5/8
5:05 pm-10:22 pm
1 stop4h 17m
Colorado Springs
Tue 5/12
11:55 am-4:00 pm
1 stop5h 05m
$253
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 7/17
3:30 pm-11:42 pm
1 stop7h 12m
Denver Intl
Mon 7/20
6:30 am-11:43 am
1 stop6h 13m
$267
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 7/1
6:00 am-11:51 am
1 stop4h 51m
Denver Intl
Mon 7/13
6:30 am-10:37 am
1 stop5h 07m
$267
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Thu 8/20
6:20 am-12:45 pm
1 stop5h 25m
Colorado Springs
Thu 8/27
2:15 pm-7:20 pm
1 stop6h 05m
$281
Quickest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 6/24
5:24 pm-10:41 pm
1 stop4h 17m
Denver Intl
Sun 6/28
5:40 am-8:37 am
1 stop3h 57m
$282
PortlandDurango
PDX - DRO
PDXDRO
Portland
Thu 5/28
5:28 pm-12:04 am
1 stop5h 36m
Durango La Plata County
Tue 6/2
6:00 am-12:55 pm
1 stop7h 55m
$288
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 8/14
3:25 pm-9:50 pm
1 stop5h 25m
Colorado Springs
Tue 8/18
7:20 am-2:05 pm
2 stops7h 45m
$289
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-DEN
PDX-MTJ
PDX-GJT
PDX-EGE
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-DEN
PDX-MTJ
PDX-GJT
How far ahead should I book a flight from Portland to Colorado?
The best time to book flights from Portland to Colorado is 28 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 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 24, 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 18, 2026.
Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Friday afternoons 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 24, 2026.
The most flights from PDX to USCO are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 24, 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
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
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
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 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 24, 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 24, 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$202 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$141 | Average$259 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$144 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$344 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$366 | FlexibilityNo cancel fee | On-time71% |