$54+ Cheap flights from Oregon 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Aug 28 — Sep 41
Round-trip
1 adult, Economy
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Find cheap flights from Oregon to Colorado with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Oregon to ColoradoExplore the most affordable flight options available from Oregon to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
Explore the most affordable flight options available from Oregon to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/283:40 pm
MFR
- DEN
1 stop17h 27m
Multiple Airlines
Wed 10/710:50 pm
DEN
- MFR
1 stop18h 09m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$179
This Frontier deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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.
Wed 8/265:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Thu 8/277:00 am
DEN
- PDX
1 stop5h 35m
Frontier
Deal found 7/28![Frontier logo]()
$189
This Super.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 10/2212:34 pm
PDX
- DEN
Nonstop2h 32m
Frontier
Sun 10/252:45 pm
DEN
- PDX
Nonstop2h 50m
Frontier
Deal found 7/27![Frontier logo]()
$190
This Cheapflightsfares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sun 8/233:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/27![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/2812:20 pm
PDX
- DEN
Nonstop2h 43m
Multiple Airlines
Wed 9/98:08 am
DEN
- PDX
Nonstop2h 42m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$192
This Expedia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:20 pm
PDX
- DEN
Nonstop2h 43m
Multiple Airlines
Mon 9/78:08 am
DEN
- PDX
Nonstop2h 42m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$193
This Frontier deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:17 pm
PDX
- DEN
1 stop8h 31m
Frontier
Thu 9/33:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/28![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Mon 9/76:17 pm
PDX
- DEN
1 stop8h 31m
Frontier
Mon 9/1410:00 am
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/24![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:17 pm
PDX
- DEN
1 stop8h 31m
Frontier
Tue 9/83:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/26![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 9/312:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Thu 9/1010:44 pm
DEN
- PDX
1 stop12h 23m
Frontier
Deal found 7/26![Frontier logo]()
$197
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Thu 8/277:00 am
DEN
- PDX
1 stop5h 35m
Frontier
Deal found 7/26![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/3112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Fri 9/43:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/28![Frontier logo]()
$199
Best flights from Oregon to ColoradoDiscover carefully curated flight deals from Oregon to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
Discover carefully curated flight deals from Oregon to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 9/124:07 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Tue 9/157:50 am
DEN
- PDX
Nonstop2h 42m
United Airlines
Deal found 7/25![United Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 7/26. 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.
Tue 10/206:35 am
BOI
- DEN
1 stop7h 00m
Southwest
Tue 10/272:10 pm
DEN
- BOI
2 stops8h 15m
Southwest
Deal found 7/26![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/245:58 pm
PDX
- DEN
Nonstop2h 48m
Alaska Airlines
Wed 9/308:08 am
DEN
- PDX
Nonstop2h 42m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$240
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/255:10 pm
PDX
- DEN
1 stop4h 30m
Delta
Mon 9/286:00 am
DEN
- PDX
1 stop5h 40m
Delta
Deal found 7/28![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/98:40 am
PDX
- DEN
Nonstop2h 38m
United Airlines
Sat 9/121:30 pm
DEN
- PDX
1 stop5h 55m
United Airlines
Deal found 7/27![United Airlines logo]()
$223
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/316:00 am
BOI
- DEN
2 stops8h 35m
Southwest
Mon 11/24:55 pm
DEN
- BOI
2 stops7h 10m
Southwest
Deal found 7/28![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/126:40 am
BOI
- DEN
2 stops7h 25m
Southwest
Sat 9/196:10 am
DEN
- BOI
2 stops7h 35m
Southwest
Deal found 7/28![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/163:31 pm
PDX
- DEN
1 stop7h 24m
Delta
Mon 10/196:10 am
DEN
- PDX
1 stop5h 35m
Delta
Deal found 7/28![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:49 pm
BOI
- DEN
1 stop17h 31m
Alaska Airlines
Sun 9/67:30 pm
DEN
- BOI
1 stop14h 22m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 7/24. 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.
Tue 9/17:50 am
PDX
- DEN
2 stops6h 55m
Southwest
Sat 9/57:45 pm
DEN
- PDX
Nonstop2h 40m
Southwest
Deal found 7/24![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am
PDX
- DEN
1 stop5h 00m
Delta
Sun 11/16:10 am
DEN
- PDX
1 stop6h 59m
Delta
Deal found 7/26![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/266:30 am
BOI
- DEN
Nonstop2h 01m
United Airlines
Wed 8/264:00 pm
DEN
- BOI
Nonstop1h 58m
United Airlines
Deal found 7/27![United Airlines logo]()
$272
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am
MFR
- DEN
1 stop11h 26m
Alaska Airlines
Sat 9/196:17 am
DEN
- MFR
1 stop14h 31m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/225:45 am
PDX
- DEN
1 stop5h 02m
Delta
Sat 8/296:28 pm
DEN
- PDX
1 stop5h 10m
Delta
Deal found 7/27![Delta logo]()
$262
This Southwest deal was found by Cheapflights users on 7/25. 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.
Sat 9/121:35 pm
PDX
- DEN
2 stops8h 15m
Southwest
Wed 9/167:35 am
DEN
- PDX
1 stop6h 45m
Southwest
Deal found 7/25![Southwest logo]()
$242
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/225:00 am
BOI
- DEN
Nonstop2h 10m
United Airlines
Mon 8/247:37 pm
DEN
- BOI
Nonstop2h 00m
United Airlines
Deal found 7/27![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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.
Fri 9/251:33 pm
RDM
- DEN
1 stop9h 11m
Alaska Airlines
Tue 9/298:22 am
DEN
- RDM
1 stop5h 18m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 8/175:44 pm
BOI
- DEN
Nonstop2h 01m
United Airlines
Thu 8/208:32 pm
DEN
- BOI
Nonstop2h 08m
United Airlines
Deal found 7/25![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 9/308:03 am
BOI
- DEN
1 stop6h 03m
Alaska Airlines
Fri 10/23:04 pm
DEN
- BOI
1 stop7h 34m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/282:55 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Mon 8/3110:15 am
DEN
- BOI
1 stop4h 50m
Southwest
Deal found 7/28![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:10 am
RDM
- DEN
1 stop5h 50m
Delta
Sun 10/116:10 am
DEN
- RDM
1 stop7h 35m
Delta
Deal found 7/27![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/276:30 am
BOI
- DEN
Nonstop2h 01m
United Airlines
Mon 8/318:32 pm
DEN
- BOI
Nonstop2h 08m
United Airlines
Deal found 7/28![United Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 7/24. 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.
Sat 8/2211:20 am
PDX
- DEN
2 stops6h 15m
Southwest
Wed 8/264:00 pm
DEN
- PDX
1 stop4h 50m
Southwest
Deal found 7/24![Southwest logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/211:33 pm
RDM
- DEN
1 stop9h 23m
Alaska Airlines
Tue 8/258:08 am
DEN
- RDM
1 stop4h 44m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Thu 9/175:00 am
RDM
- DEN
Nonstop2h 32m
United Airlines
Thu 9/247:25 pm
DEN
- RDM
Nonstop2h 36m
United Airlines
Deal found 7/26![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:28 pm
MFR
- DEN
1 stop5h 30m
Delta
Mon 9/76:00 am
DEN
- MFR
1 stop7h 53m
Delta
Deal found 7/27![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 9/910:29 am
MFR
- DEN
1 stop6h 41m
Alaska Airlines
Tue 9/151:43 pm
DEN
- MFR
1 stop7h 05m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 7/26. 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 8/197:50 am
PDX
- DEN
2 stops6h 55m
Southwest
Thu 8/274:10 pm
DEN
- PDX
2 stops7h 00m
Southwest
Deal found 7/26![Southwest logo]()
$288
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/156:00 am
RDM
- DEN
1 stop7h 32m
United Airlines
Sat 9/197:35 pm
DEN
- RDM
Nonstop2h 36m
United Airlines
Deal found 7/27![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/306:11 am
MFR
- DEN
1 stop5h 49m
Delta
Sun 11/16:42 pm
DEN
- MFR
1 stop5h 36m
Delta
Deal found 7/28![Delta logo]()
$319
Last-minute flights from Oregon to ColoradoDiscover last-minute flight deals from Oregon to Colorado. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from Oregon to Colorado. Data last updated July 29, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sun 8/233:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/27![Frontier logo]()
$191
This Priceline deal was found by Cheapflights users on 7/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:28 pm
BOI
- DEN
1 stop5h 18m
Multiple Airlines
Thu 8/279:29 am
DEN
- BOI
Nonstop2h 00m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 8/2112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sun 8/233:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/25![Frontier logo]()
$201
This Travelocity deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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.
Sat 8/225:56 pm
PDX
- DEN
1 stop5h 48m
Frontier
Tue 8/253:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/27![Frontier logo]()
$203
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sat 8/293:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/26![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:17 pm
PDX
- DEN
1 stop8h 31m
Frontier
Thu 9/33:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/28![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Thu 8/277:00 am
DEN
- PDX
1 stop5h 35m
Frontier
Deal found 7/26![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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.
Wed 8/265:56 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Thu 8/277:00 am
DEN
- PDX
1 stop5h 35m
Frontier
Deal found 7/28![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/2812:20 pm
PDX
- DEN
Nonstop2h 43m
Multiple Airlines
Wed 9/98:08 am
DEN
- PDX
Nonstop2h 42m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/307:18 am
PDX
- DEN
Nonstop2h 49m
Multiple Airlines
Fri 9/1110:00 am
DEN
- PDX
Nonstop2h 43m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$202
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:17 pm
PDX
- DEN
1 stop8h 31m
Frontier
Tue 9/83:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/26![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/3112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Fri 9/43:28 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 7/28![Frontier logo]()
$199
One-way flights from Oregon to ColoradoSearch for one-way flight options from Oregon to Colorado. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
Search for one-way flight options from Oregon to Colorado. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/26![Frontier logo]()
$54
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 7/26![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Mon 10/263:52 pm
BOI
- DEN
1 stop12h 00m
Frontier
Deal found 7/24![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Mon 10/53:52 pm
BOI
- DEN
1 stop20h 54m
Frontier
Deal found 7/26![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 11/163:52 pm
BOI
- DEN
1 stop21h 57m
Frontier
Deal found 7/25![Frontier logo]()
$93
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/122:25 pm
BOI
- DEN
Nonstop1h 55m
Southwest
Deal found 7/29![Southwest logo]()
$99
This Trip.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm
BOI
- DEN
1 stop8h 54m
Frontier
Deal found 7/27![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 9/242:50 pm
BOI
- DEN
1 stop8h 54m
Frontier
Deal found 7/26![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Fri 9/252:50 pm
BOI
- DEN
1 stop19h 17m
Frontier
Deal found 7/26![Frontier logo]()
$108
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/279:05 am
BOI
- DEN
2 stops6h 30m
Southwest
Deal found 7/28![Southwest logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Mon 9/143:52 pm
BOI
- DEN
2 stops25h 40m
Frontier
Deal found 7/24![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 10/258:14 pm
EUG
- DEN
1 stop6h 38m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$112
Find flight deals from Oregon to Colorado
Keep the following information in mind while searching for Oregon to Colorado flight deals. Data was last updated July 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $179 (Kiwi.com) |
One-way from | $54 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $289 |
Good round-trip deal | $296 or less |
Good one-way deal | $178 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Oregon 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 July 29, 2026.
Use the filters below to find and compare flights from Oregon to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sat 9/12
4:07 pm-7:45 pm
Nonstop2h 38m
Denver Intl
Tue 9/15
7:50 am-9:32 am
Nonstop2h 42m
$217
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Tue 10/20
6:35 am-1:35 pm
1 stop7h 00m
Denver Intl
Tue 10/27
2:10 pm-10:25 pm
2 stops8h 15m
$222
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 9/9
8:40 am-12:18 pm
Nonstop2h 38m
Denver Intl
Sat 9/12
1:30 pm-6:25 pm
1 stop5h 55m
$223
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Sat 10/31
6:00 am-2:35 pm
2 stops8h 35m
Denver Intl
Mon 11/2
4:55 pm-12:05 am
2 stops7h 10m
$227
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Sat 9/12
6:40 am-2:05 pm
2 stops7h 25m
Denver Intl
Sat 9/19
6:10 am-1:45 pm
2 stops7h 35m
$227
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 9/1
7:50 am-3:45 pm
2 stops6h 55m
Denver Intl
Sat 9/5
7:45 pm-9:25 pm
Nonstop2h 40m
$232
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 9/24
5:58 pm-9:46 pm
Nonstop2h 48m
Denver Intl
Wed 9/30
8:08 am-9:50 am
Nonstop2h 42m
$240
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sat 9/12
1:35 pm-10:50 pm
2 stops8h 15m
Denver Intl
Wed 9/16
7:35 am-1:20 pm
1 stop6h 45m
$242
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 9/25
5:10 pm-10:40 pm
1 stop4h 30m
Denver Intl
Mon 9/28
6:00 am-10:40 am
1 stop5h 40m
$257
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 10/16
3:31 pm-11:55 pm
1 stop7h 24m
Denver Intl
Mon 10/19
6:10 am-10:45 am
1 stop5h 35m
$257
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Oregon to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Oregon with our price prediction graph.
BOI-DEN
PDX-DEN
RDM-DEN
MFR-DEN
EUG-DEN
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 Oregon to Colorado
USOR-USCO
BOI-DEN
PDX-DEN
RDM-DEN
MFR-DEN
What is the cheapest month to book a flight from Oregon to Colorado?
Currently, October is the cheapest month in which you can book a flight from Oregon to Colorado (average of $254). Flying from Oregon to Colorado in June is currently the most expensive (average of $362). 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 OR to CO?
Find hourly flight availability from Oregon 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 July 29, 2026.
A simple way to save on the total cost of your ticket is to fly from Oregon to Colorado in the afternoon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the morning.
Weekly flight availability from Oregon to Colorado
Explore weekly flight availability from Oregon 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 July 29, 2026.
The most flights from USOR to USCO are scheduled on a Wednesday (22 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 Oregon to Colorado?
Airfare is typical for this route at the moment.
Oregon to Colorado flights typically cost between $161 and $289 in August.The cheapest round-trip price found within the last 5 days was $189 on Frontier (Aug 26-Aug 27).
How far ahead should I book a flight from Oregon to Colorado?
To ensure you get the cheapest price possible for a flight from Oregon to Colorado, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Oregon to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Oregon to Colorado. Price data was last updated on July 25, 2026.
Travelers seeking maximum savings on their Oregon 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 July 29, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from Oregon to Colorado. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Oregon to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Oregon 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 Oregon to Colorado by cabin class
Find flights from Oregon to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Oregon and Colorado flights
Browse other Oregon and Colorado flight options. Last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Colorado
Find the right flight back to Oregon after your stay in Colorado
Oregon to Colorado flights
Consider these flights traveling from Oregon to Colorado.
Top 8 airlines flying from Oregon to Colorado
Discover the top 8 airlines that operate flights from Oregon 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 July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$178 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$288 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$217 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$126 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$392 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$142 | Average$323 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$388 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$210 | Average$436 | FlexibilityNo cancel fee | On-time71% |