$78+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Mar 9 — Mar 161
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 February 7, 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 February 7, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/79:24 am
PDX
- DEN
1 stop22h 20m
Frontier
Mon 3/99:10 am
DEN
- PDX
Nonstop2h 59m
Frontier
Deal found 2/6![Frontier logo]()
$126
This Alaska Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
PDX
- DEN
1 stop5h 14m
Alaska Airlines
Wed 3/186:03 pm
DEN
- PDX
Nonstop2h 49m
Alaska Airlines
Deal found 2/5![Alaska Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:04 pm
PDX
- DEN
Nonstop2h 37m
Multiple Airlines
Tue 3/1711:38 am
DEN
- PDX
Nonstop3h 00m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:58 am
PDX
- DEN
Nonstop2h 38m
Multiple Airlines
Mon 4/66:03 pm
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/612:04 pm
PDX
- DEN
Nonstop2h 37m
Frontier
Sun 3/87:05 pm
DEN
- PDX
1 stop15h 08m
Frontier
Deal found 2/5![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:04 pm
PDX
- DEN
Nonstop2h 37m
Frontier
Sun 3/159:10 am
DEN
- PDX
Nonstop2h 59m
Frontier
Deal found 2/6![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:45 pm
PDX
- DEN
Nonstop2h 44m
Multiple Airlines
Sun 5/39:10 am
DEN
- PDX
Nonstop2h 53m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:05 am
PDX
- DEN
Nonstop2h 37m
Multiple Airlines
Mon 3/169:10 am
DEN
- PDX
Nonstop2h 59m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$135
This Cheapflightsfares deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:53 am
PDX
- DEN
1 stop6h 56m
Frontier
Thu 5/149:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 2/5![Frontier logo]()
$136
This Alaska Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:05 am
PDX
- DEN
Nonstop2h 37m
Alaska Airlines
Tue 3/1011:38 am
DEN
- PDX
Nonstop3h 00m
Alaska Airlines
Deal found 2/5![Alaska Airlines logo]()
$137
This Expedia deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” 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.
Sun 3/1512:04 pm
PDX
- DEN
Nonstop2h 37m
Multiple Airlines
Wed 3/186:03 pm
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$138
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:59 pm
PDX
- COS
1 stop8h 51m
American Airlines
Tue 3/171:59 pm
COS
- PDX
1 stop9h 03m
American Airlines
Deal found 2/5![American Airlines logo]()
$159
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 February 7, 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 February 7, 2026.
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/103:52 pm
PDX
- DEN
Nonstop2h 33m
United Airlines
Wed 3/117:15 pm
DEN
- PDX
Nonstop2h 55m
United Airlines
Deal found 2/6![United Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
PDX
- DEN
Nonstop2h 30m
Southwest
Wed 3/113:10 pm
DEN
- PDX
Nonstop2h 40m
Southwest
Deal found 2/6![Southwest logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:05 am
PDX
- DEN
Nonstop2h 37m
Alaska Airlines
Tue 3/101:10 pm
DEN
- PDX
1 stop8h 40m
Alaska Airlines
Deal found 2/4![Alaska Airlines logo]()
$147
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:45 am
PDX
- DEN
1 stop4h 48m
Delta
Wed 3/185:34 am
DEN
- PDX
1 stop4h 30m
Delta
Deal found 2/5![Delta logo]()
$157
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:59 pm
PDX
- COS
1 stop8h 51m
American Airlines
Tue 3/171:59 pm
COS
- PDX
1 stop9h 03m
American Airlines
Deal found 2/5![American Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:05 am
PDX
- DEN
Nonstop2h 33m
United Airlines
Sat 2/287:48 am
DEN
- PDX
Nonstop2h 54m
United Airlines
Deal found 2/3![United Airlines logo]()
$147
This Alaska Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:30 pm
PDX
- DEN
1 stop8h 14m
Alaska Airlines
Thu 4/26:03 pm
DEN
- PDX
Nonstop2h 49m
Alaska Airlines
Deal found 2/6![Alaska Airlines logo]()
$157
This United Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” 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 4/75:00 am
PDX
- DEN
Nonstop2h 38m
United Airlines
Sun 4/128:00 am
DEN
- PDX
Nonstop2h 48m
United Airlines
Deal found 2/7![United Airlines logo]()
$147
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:45 am
PDX
- COS
1 stop4h 39m
Delta
Tue 3/178:15 am
COS
- PDX
2 stops9h 28m
Delta
Deal found 2/5![Delta logo]()
$162
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:02 pm
PDX
- DEN
1 stop4h 28m
Delta
Wed 3/185:34 am
DEN
- PDX
1 stop4h 30m
Delta
Deal found 2/5![Delta logo]()
$167
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:00 am
PDX
- DEN
Nonstop2h 38m
United Airlines
Thu 4/98:00 am
DEN
- PDX
Nonstop2h 48m
United Airlines
Deal found 2/5![United Airlines logo]()
$157
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:05 am
PDX
- DEN
Nonstop2h 33m
United Airlines
Wed 3/258:00 am
DEN
- PDX
Nonstop2h 54m
United Airlines
Deal found 2/4![United Airlines logo]()
$157
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:30 am
PDX
- DEN
1 stop5h 56m
Delta
Mon 3/166:15 pm
DEN
- PDX
1 stop6h 39m
Delta
Deal found 2/6![Delta logo]()
$177
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” 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 3/63:59 pm
PDX
- DEN
1 stop6h 26m
Delta
Mon 3/95:34 am
DEN
- PDX
1 stop4h 30m
Delta
Deal found 2/7![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:00 am
PDX
- COS
1 stop7h 00m
Southwest
Tue 2/244:35 pm
COS
- PDX
1 stop6h 40m
Southwest
Deal found 2/3![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/233:40 pm
PDX
- COS
1 stop6h 05m
Southwest
Sat 2/287:05 pm
COS
- PDX
1 stop5h 50m
Southwest
Deal found 2/5![Southwest logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:40 pm
PDX
- GJT
1 stop9h 19m
American Airlines
Sat 3/74:46 pm
GJT
- PDX
1 stop7h 41m
American Airlines
Deal found 2/6![American Airlines logo]()
$295
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:00 am
PDX
- HDN
1 stop6h 40m
United Airlines
Wed 4/221:40 pm
HDN
- PDX
2 stops12h 04m
United Airlines
Deal found 2/4![United Airlines logo]()
$216
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:00 am
PDX
- GJT
1 stop5h 32m
American Airlines
Sun 4/56:53 pm
GJT
- PDX
1 stop6h 06m
American Airlines
Deal found 2/5![American Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:45 am
PDX
- COS
1 stop4h 30m
Delta
Sun 3/812:10 pm
COS
- PDX
2 stops9h 48m
Delta
Deal found 2/4![Delta logo]()
$222
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/64:03 pm
PDX
- COS
1 stop4h 59m
United Airlines
Sun 3/86:55 pm
COS
- PDX
1 stop5h 05m
United Airlines
Deal found 2/4![United Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:45 am
PDX
- COS
1 stop4h 30m
Delta
Mon 3/912:10 pm
COS
- PDX
2 stops9h 48m
Delta
Deal found 2/6![Delta logo]()
$233
This Southwest deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:35 am
PDX
- HDN
2 stops9h 35m
Southwest
Wed 4/229:00 am
HDN
- PDX
2 stops8h 25m
Southwest
Deal found 2/4![Southwest logo]()
$324
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:00 am
PDX
- COS
1 stop6h 36m
United Airlines
Tue 4/215:13 pm
COS
- PDX
2 stops8h 31m
United Airlines
Deal found 2/5![United Airlines logo]()
$222
This Orbitz deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:30 pm
PDX
- ASE
1 stop18h 47m
Alaska Airlines
Mon 8/35:47 pm
ASE
- PDX
1 stop7h 12m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:45 am
PDX
- COS
1 stop4h 30m
Delta
Tue 2/2412:00 pm
COS
- PDX
2 stops9h 55m
Delta
Deal found 2/3![Delta logo]()
$242
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:05 am
PDX
- DRO
1 stop6h 34m
United Airlines
Wed 2/256:00 pm
DRO
- PDX
1 stop6h 14m
United Airlines
Deal found 2/6![United Airlines logo]()
$228
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:44 pm
PDX
- COS
1 stop4h 15m
United Airlines
Wed 7/86:34 pm
COS
- PDX
1 stop5h 21m
United Airlines
Deal found 2/6![United Airlines logo]()
$238
This Alaska Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/610:30 am
PDX
- ASE
1 stop7h 24m
Alaska Airlines
Sun 3/87:24 pm
ASE
- PDX
1 stop15h 11m
Alaska Airlines
Deal found 2/6![Alaska Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:18 pm
PDX
- EGE
1 stop5h 54m
United Airlines
Wed 3/43:30 pm
EGE
- PDX
1 stop6h 45m
United Airlines
Deal found 2/3![United Airlines logo]()
$249
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated February 7, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated February 7, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/178:30 am
PDX
- DEN
Nonstop2h 25m
Southwest
Sat 2/288:10 am
DEN
- PDX
Nonstop2h 55m
Southwest
Deal found 2/3![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:50 pm
PDX
- DEN
1 stop5h 54m
United Airlines
Sat 2/287:48 am
DEN
- PDX
Nonstop2h 54m
United Airlines
Deal found 2/3![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:35 am
PDX
- COS
1 stop4h 45m
Southwest
Tue 3/33:10 pm
COS
- PDX
1 stop7h 55m
Southwest
Deal found 2/4![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:45 am
PDX
- COS
1 stop4h 30m
Delta
Tue 3/37:55 am
COS
- PDX
2 stops11h 53m
Delta
Deal found 2/4![Delta logo]()
$242
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:05 am
PDX
- GJT
1 stop6h 42m
United Airlines
Wed 2/256:15 pm
GJT
- PDX
1 stop5h 59m
United Airlines
Deal found 2/5![United Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:05 am
PDX
- DRO
1 stop6h 34m
United Airlines
Wed 2/256:00 pm
DRO
- PDX
1 stop6h 14m
United Airlines
Deal found 2/6![United Airlines logo]()
$228
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:05 am
PDX
- MTJ
1 stop6h 22m
United Airlines
Fri 2/273:33 pm
MTJ
- PDX
1 stop6h 42m
United Airlines
Deal found 2/5![United Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:05 am
PDX
- COS
1 stop6h 23m
United Airlines
Sun 3/86:55 pm
COS
- PDX
1 stop5h 05m
United Airlines
Deal found 2/4![United Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:45 am
PDX
- COS
1 stop4h 30m
Delta
Sun 3/812:10 pm
COS
- PDX
2 stops9h 48m
Delta
Deal found 2/4![Delta logo]()
$222
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:45 am
PDX
- COS
1 stop4h 30m
Delta
Mon 3/912:10 pm
COS
- PDX
2 stops9h 48m
Delta
Deal found 2/3![Delta logo]()
$223
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:59 pm
PDX
- COS
1 stop8h 51m
American Airlines
Tue 3/171:59 pm
COS
- PDX
1 stop9h 03m
American Airlines
Deal found 2/5![American Airlines logo]()
$159
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:45 am
PDX
- COS
1 stop4h 39m
Delta
Tue 3/178:15 am
COS
- PDX
2 stops9h 28m
Delta
Deal found 2/5![Delta logo]()
$162
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 February 7, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated February 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/309:43 am
PDX
- DEN
1 stop23h 01m
Frontier
Deal found 2/4![Frontier logo]()
$78
This Delta deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/145:45 am
PDX
- COS
1 stop4h 39m
Delta
Deal found 2/4![Delta logo]()
$79
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:59 pm
PDX
- DEN
1 stop4h 51m
Delta
Deal found 2/5![Delta logo]()
$79
This Cheapflightsfares deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:53 am
PDX
- DEN
1 stop6h 56m
Frontier
Deal found 2/4![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/311:58 am
PDX
- DEN
Nonstop2h 38m
Frontier
Deal found 2/5![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” 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 3/88:09 pm
PDX
- DEN
1 stop27h 09m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$84
This Super.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” 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 4/2712:52 pm
PDX
- DEN
1 stop21h 13m
Frontier
Deal found 2/7![Frontier logo]()
$85
This Cheapflightsfares deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” 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 5/412:52 pm
PDX
- DEN
1 stop21h 13m
Frontier
Deal found 2/7![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/210:18 pm
PDX
- DEN
1 stop10h 13m
Frontier
Deal found 2/5![Frontier logo]()
$87
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:05 am
PDX
- DEN
Nonstop2h 33m
United Airlines
Deal found 2/5![United Airlines logo]()
$88
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:05 pm
PDX
- DEN
1 stop4h 45m
Delta
Deal found 2/5![Delta logo]()
$89
This CheapOair deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:53 am
PDX
- DEN
1 stop22h 52m
Frontier
Deal found 2/4![Frontier logo]()
$92
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 February 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Cheapflightsfares) |
One-way from | $78 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $197 |
Good round-trip deal | $265 or less |
Good one-way deal | $156 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 February 7, 2026.
Use the filters below to find and compare flights from Portland to Colorado that are best for you.
Fly from
Portland
Fly to
Colorado
Route
Depart
Return
Price
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 3/10
3:52 pm-7:25 pm
Nonstop2h 33m
Denver Intl
Wed 3/11
7:15 pm-9:10 pm
Nonstop2h 55m
$137
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 3/10
6:00 am-9:30 am
Nonstop2h 30m
Denver Intl
Wed 3/11
3:10 pm-4:50 pm
Nonstop2h 40m
$137
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 3/4
7:05 am-10:42 am
Nonstop2h 37m
Denver Intl
Tue 3/10
1:10 pm-8:50 pm
1 stop8h 40m
$147
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 2/26
5:05 am-8:38 am
Nonstop2h 33m
Denver Intl
Sat 2/28
7:48 am-9:42 am
Nonstop2h 54m
$147
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 4/7
5:00 am-8:38 am
Nonstop2h 38m
Denver Intl
Sun 4/12
8:00 am-9:48 am
Nonstop2h 48m
$147
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 3/10
5:45 am-11:33 am
1 stop4h 48m
Denver Intl
Wed 3/18
5:34 am-9:04 am
1 stop4h 30m
$157
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 3/31
2:30 pm-11:44 pm
1 stop8h 14m
Denver Intl
Thu 4/2
6:03 pm-7:52 pm
Nonstop2h 49m
$157
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 4/2
5:00 am-8:38 am
Nonstop2h 38m
Denver Intl
Thu 4/9
8:00 am-9:48 am
Nonstop2h 48m
$157
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 3/17
5:05 am-8:38 am
Nonstop2h 33m
Denver Intl
Wed 3/25
8:00 am-9:54 am
Nonstop2h 54m
$157
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Tue 3/10
11:59 pm-9:50 am
1 stop8h 51m
Colorado Springs
Tue 3/17
1:59 pm-10:02 pm
1 stop9h 03m
$159
Showing 1-10 of 55 results
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-MTJ
PDX-GJT
PDX-DEN
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-COS
PDX-MTJ
PDX-GJT
PDX-DEN
What is the cheapest month to book a flight from Portland to Colorado?
Currently, February is the cheapest month in which you can book a flight from Portland to Colorado (average of $46). Flying from Portland to Colorado in July is currently the most expensive (average of $98). 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 February 7, 2026.
One of the essential ways to save on airfare from Portland to Colorado is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 12% 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 January 31, 2026.
Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Saturday 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 February 7, 2026.
The most flights from PDX to USCO are scheduled on a Friday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
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 February 7, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Hawaiian 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.
Food
7.1
Boarding
8.1
Entertainment
7.0
Overall
8.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Boarding
8.1
Entertainment
7.0
Overall
8.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Boarding
8.1
Entertainment
7.0
Overall
8.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Boarding
8.1
Entertainment
7.0
Overall
8.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Boarding
8.1
Entertainment
7.0
Overall
8.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Boarding
8.1
Entertainment
7.0
Overall
8.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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 February 7, 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 February 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$149 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$286 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$200 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$258 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$152 | Average$346 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$381 | FlexibilityNo cancel fee | On-time71% |