$122+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jul 26 — Aug 21
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 June 26, 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 June 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Fri 10/912:34 pm
PDX
- DEN
Nonstop2h 32m
Frontier
Sun 10/112:45 pm
DEN
- PDX
Nonstop2h 50m
Frontier
Deal found 6/23![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 8/195:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 8/243:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/23![Frontier logo]()
$201
This Cheapflightsfares deal was found by Cheapflights users on 6/23. 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.
Sat 8/112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Wed 8/510:39 pm
DEN
- PDX
1 stop13h 56m
Frontier
Deal found 6/23![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:34 pm
PDX
- DEN
Nonstop2h 32m
Frontier
Mon 10/126:30 am
DEN
- PDX
1 stop6h 09m
Frontier
Deal found 6/24![Frontier logo]()
$203
This Travelocity deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Wed 9/3010:29 pm
DEN
- PDX
1 stop16h 58m
Frontier
Deal found 6/25![Frontier logo]()
$204
This Super.com deal was found by Cheapflights users on 6/23. 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.
Sat 9/123:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Wed 9/167:08 pm
DEN
- PDX
1 stop26h 31m
Frontier
Deal found 6/23![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Wed 9/2310:29 pm
DEN
- PDX
1 stop16h 58m
Frontier
Deal found 6/26![Frontier logo]()
$211
This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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.
Fri 9/119:34 pm
PDX
- DEN
1 stop25h 41m
Frontier
Sun 9/132:45 pm
DEN
- PDX
Nonstop2h 50m
Frontier
Deal found 6/21![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 9/73:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/25![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 10/1012:34 pm
PDX
- DEN
Nonstop2h 32m
Frontier
Wed 10/1412:17 pm
DEN
- PDX
1 stop24h 22m
Frontier
Deal found 6/21![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/75:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Wed 7/152:55 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/21![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/75:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/21![Frontier logo]()
$220
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 June 26, 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 June 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:03 pm
PDX
- DEN
1 stop7h 41m
Alaska Airlines
Tue 9/151:43 pm
DEN
- PDX
1 stop10h 02m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 6/22. 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 9/291:05 pm
PDX
- DEN
2 stops7h 15m
Southwest
Fri 10/27:30 pm
DEN
- PDX
Nonstop2h 45m
Southwest
Deal found 6/22![Southwest logo]()
$302
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Thu 8/274:07 pm
PDX
- COS
1 stop6h 48m
United Airlines
Tue 9/110:27 am
COS
- PDX
1 stop5h 39m
United Airlines
Deal found 6/21![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 6/23. 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.
Tue 8/115:54 pm
PDX
- DEN
1 stop5h 04m
Delta
Mon 8/176:20 am
DEN
- PDX
1 stop5h 22m
Delta
Deal found 6/23![Delta logo]()
$307
This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:18 am
PDX
- MTJ
1 stop7h 12m
American Airlines
Tue 8/182:21 pm
MTJ
- PDX
1 stop9h 48m
American Airlines
Deal found 6/24![American Airlines logo]()
$561
This Southwest deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:25 pm
PDX
- COS
1 stop7h 20m
Southwest
Wed 9/235:20 pm
COS
- PDX
1 stop5h 35m
Southwest
Deal found 6/26![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 6/22. 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.
Mon 8/3111:22 am
PDX
- DEN
1 stop5h 26m
Delta
Sun 9/66:20 am
DEN
- PDX
1 stop5h 22m
Delta
Deal found 6/22![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/22. 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 7/245:00 pm
PDX
- COS
1 stop7h 25m
Southwest
Thu 7/309:05 pm
COS
- PDX
1 stop5h 20m
Southwest
Deal found 6/22![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/199:45 am
PDX
- DEN
1 stop4h 08m
Delta
Tue 7/2112:45 pm
DEN
- PDX
1 stop6h 33m
Delta
Deal found 6/25![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:43 pm
PDX
- COS
2 stops7h 12m
United Airlines
Mon 8/246:00 am
COS
- PDX
1 stop4h 32m
United Airlines
Deal found 6/26![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:30 pm
PDX
- DEN
1 stop7h 14m
Delta
Tue 7/2112:45 pm
DEN
- PDX
1 stop6h 33m
Delta
Deal found 6/25![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:50 pm
PDX
- DEN
1 stop5h 30m
Southwest
Sat 7/254:10 pm
DEN
- PDX
2 stops6h 50m
Southwest
Deal found 6/25![Southwest logo]()
$312
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:05 am
PDX
- GJT
1 stop5h 23m
United Airlines
Wed 7/157:00 am
GJT
- PDX
1 stop7h 09m
United Airlines
Deal found 6/26![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:10 am
PDX
- DEN
1 stop5h 25m
Delta
Thu 10/86:45 am
DEN
- PDX
1 stop4h 53m
Delta
Deal found 6/25![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/22. 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
Mon 8/246:45 pm
COS
- PDX
1 stop5h 20m
Southwest
Deal found 6/22![Southwest logo]()
$313
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:54 pm
PDX
- DEN
1 stop4h 50m
Delta
Thu 7/236:30 am
DEN
- PDX
1 stop5h 05m
Delta
Deal found 6/25![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 6/22. 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 8/294:07 pm
PDX
- DRO
1 stop4h 53m
United Airlines
Wed 9/27:00 am
DRO
- PDX
1 stop7h 14m
United Airlines
Deal found 6/22![United Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:55 pm
PDX
- COS
1 stop4h 55m
Southwest
Fri 7/247:55 pm
COS
- PDX
1 stop5h 40m
Southwest
Deal found 6/25![Southwest logo]()
$313
This Delta deal was found by Cheapflights users on 6/21. 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.
Tue 9/225:40 am
PDX
- DEN
1 stop5h 29m
Delta
Thu 9/248:05 am
DEN
- PDX
1 stop5h 10m
Delta
Deal found 6/21![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/21. 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.
Thu 8/275:15 am
PDX
- COS
2 stops8h 00m
Southwest
Tue 9/11:15 pm
COS
- PDX
1 stop5h 30m
Southwest
Deal found 6/21![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Fri 8/214:07 pm
PDX
- COS
1 stop6h 48m
United Airlines
Sun 8/235:30 am
COS
- PDX
1 stop5h 02m
United Airlines
Deal found 6/22![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Tue 9/225:00 am
PDX
- COS
1 stop4h 44m
United Airlines
Wed 9/236:00 am
COS
- PDX
1 stop4h 32m
United Airlines
Deal found 6/21![United Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 6/22. 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 8/205:15 pm
PDX
- DEN
1 stop4h 50m
Southwest
Wed 8/269:05 am
DEN
- PDX
2 stops8h 05m
Southwest
Deal found 6/22![Southwest logo]()
$333
This American Airlines deal was found by Cheapflights users on 6/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:20 am
PDX
- EGE
2 stops12h 30m
American Airlines
Wed 7/292:12 pm
EGE
- PDX
1 stop9h 39m
American Airlines
Deal found 6/22![American Airlines logo]()
$594
This Delta deal was found by Cheapflights users on 6/24. 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 7/95:14 pm
PDX
- GJT
1 stop3h 41m
Delta
Mon 7/137:34 am
GJT
- PDX
2 stops10h 00m
Delta
Deal found 6/24![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:41 pm
PDX
- EGE
1 stop7h 42m
American Airlines
Tue 7/147:50 am
EGE
- PDX
2 stops9h 48m
American Airlines
Deal found 6/25![American Airlines logo]()
$594
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:07 pm
PDX
- DRO
1 stop4h 53m
United Airlines
Sun 9/65:15 am
DRO
- PDX
1 stop5h 18m
United Airlines
Deal found 6/26![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 6/22. 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 8/181:25 pm
PDX
- HDN
1 stop4h 55m
Southwest
Sat 8/229:05 am
HDN
- PDX
2 stops8h 45m
Southwest
Deal found 6/22![Southwest logo]()
$338
This United Airlines deal was found by Cheapflights users on 6/21. 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 8/294:07 pm
PDX
- GJT
1 stop4h 52m
United Airlines
Tue 9/11:40 pm
GJT
- PDX
1 stop5h 10m
United Airlines
Deal found 6/21![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 6/23. 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 9/99:46 am
PDX
- GJT
1 stop6h 04m
Delta
Mon 9/145:15 pm
GJT
- PDX
2 stops7h 39m
Delta
Deal found 6/23![Delta logo]()
$382
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated June 26, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated June 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/412:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/21![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/75:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Wed 7/152:55 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/21![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/75:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/21![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/75:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sun 7/123:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/21![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Wed 7/85:21 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/22![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:21 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Wed 7/152:55 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/24![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Wed 7/152:55 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/24![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Mon 7/1312:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sun 7/263:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/21![Frontier logo]()
$227
This Super.com deal was found by Cheapflights users on 6/23. 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.
Tue 7/145:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Thu 7/163:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/23![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 7/1612:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sun 7/193:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/23![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Sat 7/1812:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 7/203:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/22![Frontier logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 6/23. 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.
Fri 7/3112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Wed 8/510:39 pm
DEN
- PDX
1 stop13h 56m
Frontier
Deal found 6/23![Frontier logo]()
$202
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 June 26, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
This Super.com deal was found by Cheapflights users on 6/21. 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.
Mon 7/2012:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 6/21![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:56 pm
PDX
- DEN
1 stop29h 48m
Frontier
Deal found 6/25![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:56 pm
PDX
- DEN
1 stop15h 07m
Frontier
Deal found 6/25![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/75:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 6/21![Frontier logo]()
$129
This Super.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 6/25![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/412:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Deal found 6/21![Frontier logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 6/25![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 6/23. 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.
Fri 7/1012:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 6/23![Frontier logo]()
$134
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:40 am
PDX
- MTJ
1 stop4h 47m
United Airlines
Deal found 6/25![United Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Fri 7/315:36 pm
PDX
- DEN
1 stop15h 27m
Frontier
Deal found 6/21![Frontier logo]()
$138
This Southwest deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:50 am
PDX
- MTJ
2 stops10h 35m
Southwest
Deal found 6/25![Southwest logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:30 pm
PDX
- DEN
1 stop20h 07m
Frontier
Deal found 6/25![Frontier logo]()
$141
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 June 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $200 (Kiwi.com) |
One-way from | $122 (Super.com) |
Popular in | June |
Cheapest in | August |
Average price | $296 |
Good round-trip deal | $317 or less |
Good one-way deal | $174 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 June 26, 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
Thu 9/10
3:03 pm-11:44 pm
1 stop7h 41m
Denver Intl
Tue 9/15
1:43 pm-10:45 pm
1 stop10h 02m
$299
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 9/29
1:05 pm-9:20 pm
2 stops7h 15m
Denver Intl
Fri 10/2
7:30 pm-9:15 pm
Nonstop2h 45m
$302
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Thu 8/27
4:07 pm-11:55 pm
1 stop6h 48m
Colorado Springs
Tue 9/1
10:27 am-3:06 pm
1 stop5h 39m
$307
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 8/11
5:54 pm-11:58 pm
1 stop5h 04m
Denver Intl
Mon 8/17
6:20 am-10:42 am
1 stop5h 22m
$307
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Wed 9/16
1:25 pm-9:45 pm
1 stop7h 20m
Colorado Springs
Wed 9/23
5:20 pm-9:55 pm
1 stop5h 35m
$307
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 8/31
11:22 am-5:48 pm
1 stop5h 26m
Denver Intl
Sun 9/6
6:20 am-10:42 am
1 stop5h 22m
$307
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Fri 7/24
5:00 pm-1:25 am
1 stop7h 25m
Colorado Springs
Thu 7/30
9:05 pm-1:25 am
1 stop5h 20m
$307
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sun 7/19
9:45 am-2:53 pm
1 stop4h 08m
Denver Intl
Tue 7/21
12:45 pm-6:18 pm
1 stop6h 33m
$307
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 7/20
3:30 pm-11:44 pm
1 stop7h 14m
Denver Intl
Tue 7/21
12:45 pm-6:18 pm
1 stop6h 33m
$307
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 10/6
11:10 am-5:35 pm
1 stop5h 25m
Denver Intl
Thu 10/8
6:45 am-10:38 am
1 stop4h 53m
$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-DEN
PDX-COS
PDX-MTJ
PDX-GJT
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-MTJ
PDX-GJT
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 June is currently the most expensive (average of $602). 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 June 26, 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 June 26, 2026.
The most flights from PDX to USCO are scheduled on a Wednesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 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 76 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 June 20, 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 June 26, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andDelta 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.
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
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 June 26, 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 June 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$164 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$295 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$188 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$126 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$140 | Average$266 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$366 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$147 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$414 | FlexibilityNo cancel fee | On-time71% |