$108+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jun 10 — Jun 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Colorado
Cheapest
Best
Last-minute
One-way
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 May 11, 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 May 11, 2026.
This Super.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 6/13:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/10![Frontier logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 5/7. 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.
Thu 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sat 5/303:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/7![Frontier logo]()
$167
This Cheapflightsfares deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 6/16:10 am
DEN
- PDX
1 stop5h 10m
Frontier
Deal found 5/11![Frontier logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 6/83:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/11![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 5/6. 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.
Sun 5/3112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/6![Frontier logo]()
$170
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/710:33 am
DEN
- PDX
1 stop24h 47m
Frontier
Deal found 5/11![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
Fri 6/512:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Sat 6/68:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$172
This Frontier deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 9/103:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Tue 9/1512:37 pm
DEN
- PDX
Nonstop2h 50m
Frontier
Deal found 5/10![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 9/103:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Mon 9/149:15 am
DEN
- PDX
1 stop6h 12m
Frontier
Deal found 5/11![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 9/113:22 pm
PDX
- DEN
Nonstop2h 36m
Frontier
Wed 9/1612:37 pm
DEN
- PDX
Nonstop2h 50m
Frontier
Deal found 5/11![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 9/25:42 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sun 9/67:00 am
DEN
- PDX
1 stop5h 41m
Frontier
Deal found 5/9![Frontier logo]()
$176
This Orbitz deal was found by Cheapflights users on 5/7. 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.
Fri 6/55:50 pm
PDX
- DEN
Nonstop2h 47m
Multiple Airlines
Mon 6/83:00 pm
DEN
- PDX
Nonstop2h 46m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$177
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 May 11, 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 May 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:50 pm
PDX
- DEN
Nonstop2h 47m
Alaska Airlines
Tue 6/212:02 pm
DEN
- PDX
Nonstop2h 48m
Alaska Airlines
Deal found 5/7![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 9/36:30 am
PDX
- COS
2 stops9h 44m
Delta
Tue 9/85:55 pm
COS
- PDX
1 stop5h 46m
Delta
Deal found 5/8![Delta logo]()
$222
This Southwest deal was found by Cheapflights users on 5/6. 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.
Thu 5/2811:35 am
PDX
- DEN
1 stop5h 30m
Southwest
Tue 6/28:20 pm
DEN
- PDX
Nonstop2h 40m
Southwest
Deal found 5/6![Southwest logo]()
$247
This American Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/245:05 am
PDX
- MTJ
1 stop7h 25m
American Airlines
Thu 5/282:21 pm
MTJ
- PDX
1 stop9h 30m
American Airlines
Deal found 5/10![American Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 am
PDX
- HDN
1 stop6h 24m
United Airlines
Sat 5/301:20 pm
HDN
- PDX
1 stop5h 26m
United Airlines
Deal found 5/11![United Airlines logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/25:46 pm
PDX
- DEN
1 stop5h 13m
Alaska Airlines
Sat 6/65:58 pm
DEN
- PDX
Nonstop2h 48m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 5/7. 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.
Thu 8/2010:53 am
PDX
- COS
2 stops11h 03m
Delta
Sun 8/236:16 pm
COS
- PDX
1 stop6h 23m
Delta
Deal found 5/7![Delta logo]()
$232
This Southwest deal was found by Cheapflights users on 5/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:20 pm
PDX
- DEN
1 stop4h 45m
Southwest
Sun 7/59:00 pm
DEN
- PDX
1 stop5h 00m
Southwest
Deal found 5/7![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 5/6. 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.
Wed 6/31:35 pm
PDX
- COS
2 stops7h 47m
Delta
Wed 6/106:20 pm
COS
- PDX
1 stop6h 26m
Delta
Deal found 5/6![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 10/225:00 am
PDX
- GJT
1 stop6h 33m
United Airlines
Tue 10/275:30 am
GJT
- PDX
1 stop5h 10m
United Airlines
Deal found 5/8![United Airlines logo]()
$301
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/126:04 pm
PDX
- DEN
Nonstop2h 36m
Alaska Airlines
Mon 6/227:05 pm
DEN
- PDX
Nonstop2h 45m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 5/6. 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.
Thu 6/252:05 pm
PDX
- DEN
1 stop6h 20m
Southwest
Tue 6/302:40 pm
DEN
- PDX
1 stop6h 25m
Southwest
Deal found 5/6![Southwest logo]()
$282
This American Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:30 pm
PDX
- GJT
1 stop5h 25m
American Airlines
Sun 5/314:56 pm
GJT
- PDX
1 stop8h 53m
American Airlines
Deal found 5/9![American Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 10/95:45 pm
PDX
- DEN
1 stop4h 43m
Delta
Sun 10/116:45 am
DEN
- PDX
1 stop4h 53m
Delta
Deal found 5/10![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 5/6. 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.
Wed 6/175:55 pm
PDX
- COS
1 stop4h 50m
Southwest
Fri 6/197:55 pm
COS
- PDX
1 stop5h 35m
Southwest
Deal found 5/6![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sat 5/235:00 am
PDX
- MTJ
1 stop6h 44m
United Airlines
Sun 5/241:40 pm
MTJ
- PDX
2 stops10h 23m
United Airlines
Deal found 5/7![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 8/255:30 am
PDX
- DEN
1 stop5h 47m
Delta
Thu 8/276:20 am
DEN
- PDX
1 stop5h 17m
Delta
Deal found 5/8![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 5/6. 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.
Fri 6/267:20 am
PDX
- COS
2 stops9h 20m
Delta
Mon 6/296:20 pm
COS
- PDX
1 stop5h 20m
Delta
Deal found 5/6![Delta logo]()
$282
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/25:00 am
PDX
- GJT
1 stop6h 31m
United Airlines
Sat 6/61:33 pm
GJT
- PDX
1 stop5h 13m
United Airlines
Deal found 5/10![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 9/21:05 pm
PDX
- DEN
2 stops7h 15m
Southwest
Thu 9/310:40 am
DEN
- PDX
1 stop6h 55m
Southwest
Deal found 5/10![Southwest logo]()
$332
This United Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:50 am
PDX
- HDN
1 stop4h 49m
United Airlines
Wed 6/33:20 pm
HDN
- PDX
1 stop6h 50m
United Airlines
Deal found 5/9![United Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/175:33 pm
PDX
- DRO
1 stop5h 26m
American Airlines
Mon 6/226:00 am
DRO
- PDX
1 stop7h 55m
American Airlines
Deal found 5/10![American Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 5/6. 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.
Wed 9/306:30 am
PDX
- COS
2 stops9h 44m
Delta
Sun 10/115:55 pm
COS
- PDX
1 stop6h 56m
Delta
Deal found 5/6![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 8/165:00 am
PDX
- GJT
1 stop6h 38m
United Airlines
Sat 8/229:24 am
GJT
- PDX
1 stop6h 41m
United Airlines
Deal found 5/11![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 8/146:20 am
PDX
- DEN
2 stops8h 00m
Southwest
Mon 8/179:00 am
DEN
- PDX
2 stops6h 45m
Southwest
Deal found 5/10![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 5/7. 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.
Wed 5/275:05 pm
PDX
- GJT
1 stop3h 55m
Delta
Tue 6/27:40 am
GJT
- PDX
1 stop5h 53m
Delta
Deal found 5/7![Delta logo]()
$310
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/256:50 pm
PDX
- DEN
Nonstop2h 39m
United Airlines
Sun 6/286:00 am
DEN
- PDX
1 stop5h 20m
United Airlines
Deal found 5/10![United Airlines logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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.
Mon 7/137:00 am
PDX
- ASE
1 stop7h 59m
Alaska Airlines
Sat 7/186:01 pm
ASE
- PDX
1 stop6h 55m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 9/176:30 am
PDX
- COS
2 stops9h 44m
Delta
Mon 9/215:55 pm
COS
- PDX
1 stop6h 46m
Delta
Deal found 5/11![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 am
PDX
- GUC
1 stop6h 44m
United Airlines
Sat 5/301:25 pm
GUC
- PDX
1 stop5h 21m
United Airlines
Deal found 5/9![United Airlines logo]()
$379
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated May 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated May 11, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 6/13:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/10![Frontier logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 5/6. 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.
Thu 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sat 5/303:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/6![Frontier logo]()
$167
This Expedia deal was found by Cheapflights users on 5/7. 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.
Thu 5/2812:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Fri 5/295:58 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$173
This Cheapflightsfares deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 6/16:10 am
DEN
- PDX
1 stop5h 10m
Frontier
Deal found 5/11![Frontier logo]()
$168
This Frontier deal was found by Cheapflights users on 5/6. 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.
Sun 5/3112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/6![Frontier logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Mon 6/83:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/10![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/710:33 am
DEN
- PDX
1 stop24h 47m
Frontier
Deal found 5/11![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 5/7. 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.
Fri 6/512:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Sat 6/68:00 am
DEN
- PDX
Nonstop2h 49m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/512:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Fri 6/1210:39 pm
DEN
- PDX
1 stop14h 02m
Frontier
Deal found 5/8![Frontier logo]()
$176
This Orbitz deal was found by Cheapflights users on 5/7. 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.
Fri 6/55:50 pm
PDX
- DEN
Nonstop2h 47m
Multiple Airlines
Mon 6/83:00 pm
DEN
- PDX
Nonstop2h 46m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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.
Wed 6/105:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sun 6/1410:39 pm
DEN
- PDX
1 stop14h 02m
Frontier
Deal found 5/10![Frontier logo]()
$178
This Super.com deal was found by Cheapflights users on 5/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/158:42 pm
PDX
- DEN
1 stop6h 16m
Frontier
Wed 6/172:50 pm
DEN
- PDX
Nonstop2h 45m
Frontier
Deal found 5/6![Frontier logo]()
$174
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 May 11, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated May 11, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 7/115:42 pm
PDX
- DEN
1 stop5h 54m
Frontier
Deal found 5/10![Frontier logo]()
$108
This United Airlines deal was found by Cheapflights users on 5/6. 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 8/76:50 pm
PDX
- COS
1 stop4h 09m
United Airlines
Deal found 5/6![United Airlines logo]()
$109
This Alaska Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/35:50 pm
PDX
- DEN
Nonstop2h 47m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$109
This Super.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 6/158:42 pm
PDX
- DEN
1 stop6h 16m
Frontier
Deal found 5/11![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 8/812:26 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 5/10![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 5/7. 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.
Thu 5/2112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 5/7![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 5/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 5/6![Frontier logo]()
$113
This Southwest deal was found by Cheapflights users on 5/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:45 am
PDX
- COS
2 stops8h 55m
Southwest
Deal found 5/7![Southwest logo]()
$114
This Super.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/65:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Deal found 5/10![Frontier logo]()
$114
This Cheapflightsfares deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 5/10![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Deal found 5/11![Frontier logo]()
$116
This Southwest deal was found by Cheapflights users on 5/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:40 pm
PDX
- DEN
Nonstop2h 25m
Southwest
Deal found 5/7![Southwest logo]()
$119
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 May 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $166 (Super.com) |
One-way from | $108 (Cheapflightsfares) |
Popular in | March |
Cheapest in | August |
Average price | $255 |
Good round-trip deal | $304 or less |
Good one-way deal | $155 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 May 11, 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
Sat 5/30
5:50 pm-9:37 pm
Nonstop2h 47m
Denver Intl
Tue 6/2
12:02 pm-1:50 pm
Nonstop2h 48m
$217
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Thu 9/3
6:30 am-5:14 pm
2 stops9h 44m
Colorado Springs
Tue 9/8
5:55 pm-10:41 pm
1 stop5h 46m
$222
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 6/2
5:46 pm-11:59 pm
1 stop5h 13m
Denver Intl
Sat 6/6
5:58 pm-7:46 pm
Nonstop2h 48m
$227
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Thu 8/20
10:53 am-10:56 pm
2 stops11h 03m
Colorado Springs
Sun 8/23
6:16 pm-11:39 pm
1 stop6h 23m
$232
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 5/28
11:35 am-6:05 pm
1 stop5h 30m
Denver Intl
Tue 6/2
8:20 pm-10:00 pm
Nonstop2h 40m
$247
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 6/30
5:20 pm-11:05 pm
1 stop4h 45m
Denver Intl
Sun 7/5
9:00 pm-1:00 am
1 stop5h 00m
$262
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Wed 6/3
1:35 pm-10:22 pm
2 stops7h 47m
Colorado Springs
Wed 6/10
6:20 pm-11:46 pm
1 stop6h 26m
$267
PortlandMontrose
PDX - MTJ
PDXMTJ
Portland
Sun 5/24
5:05 am-1:30 pm
1 stop7h 25m
Montrose County
Thu 5/28
2:21 pm-10:51 pm
1 stop9h 30m
$271
PortlandHayden
PDX - HDN
PDXHDN
Portland
Tue 5/26
5:00 am-12:24 pm
1 stop6h 24m
Hayden Yampa Valley
Sat 5/30
1:20 pm-5:46 pm
1 stop5h 26m
$271
Quickest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 6/12
6:04 pm-9:40 pm
Nonstop2h 36m
Denver Intl
Mon 6/22
7:05 pm-8:50 pm
Nonstop2h 45m
$277
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-ASE
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
How far ahead should I book a flight from Portland to Colorado?
The best time to book flights from Portland to Colorado is 28 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Portland to Colorado?
Currently, December is the cheapest month in which you can book a flight from Portland to Colorado (average of $29). Flying from Portland to Colorado in April is currently the most expensive (average of $620). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PDX to CO?
Find hourly flight availability from Portland to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 11, 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 18% 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 May 9, 2026.
Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Portland to Colorado
Explore weekly flight availability from Portland to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 11, 2026.
The most flights from PDX to USCO are scheduled on a Monday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Portland to Colorado?
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated May 11, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andUnited 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.
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Portland to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 May 11, 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 May 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$152 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$285 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$190 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$140 | Average$261 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$144 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$302 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$413 | FlexibilityNo cancel fee | On-time71% |