$79+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Apr 21 — Apr 281
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Colorado with Cheapflights
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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 March 22, 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 March 22, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/141:48 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sat 4/189:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 3/17![Frontier logo]()
$97
This iWofly deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:28 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2110:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 3/20![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:28 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/2210:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 3/21![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2810:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 3/20![Frontier logo]()
$108
This Booking.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sun 4/268:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 3/17![Frontier logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/2912:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Thu 4/306:00 am
DEN
- PDX
1 stop6h 50m
Frontier
Deal found 3/17![Frontier logo]()
$117
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sun 4/268:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 3/20![Frontier logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Fri 5/153:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 3/20![Frontier logo]()
$122
This Booking.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sat 5/29:30 pm
DEN
- PDX
1 stop15h 20m
Frontier
Deal found 3/17![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sun 4/198:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 3/20![Frontier logo]()
$127
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/174:55 pm
PDX
- COS
1 stop6h 10m
Southwest
Fri 4/246:15 am
COS
- PDX
1 stop5h 30m
Southwest
Deal found 3/18![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:10 pm
PDX
- COS
1 stop9h 55m
Southwest
Mon 4/208:00 pm
COS
- PDX
1 stop5h 25m
Southwest
Deal found 3/19![Southwest logo]()
$222
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 March 22, 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 March 22, 2026.
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/165:00 am
PDX
- COS
1 stop5h 35m
Southwest
Thu 4/237:20 pm
COS
- PDX
1 stop6h 35m
Southwest
Deal found 3/18![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/75:35 pm
PDX
- DEN
1 stop6h 10m
United Airlines
Sat 4/181:40 pm
DEN
- PDX
1 stop5h 28m
United Airlines
Deal found 3/17![United Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:05 pm
PDX
- DEN
1 stop4h 45m
Delta
Mon 4/271:20 pm
DEN
- PDX
1 stop4h 50m
Delta
Deal found 3/19![Delta logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:32 pm
PDX
- DEN
1 stop25h 12m
Alaska Airlines
Thu 4/166:03 pm
DEN
- PDX
Nonstop2h 49m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/15:40 am
PDX
- GUC
1 stop7h 16m
American Airlines
Sun 4/52:26 pm
GUC
- PDX
1 stop8h 36m
American Airlines
Deal found 3/17![American Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
PDX
- COS
2 stops7h 30m
Southwest
Sat 4/251:10 pm
COS
- PDX
1 stop6h 35m
Southwest
Deal found 3/21![Southwest logo]()
$222
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:05 pm
PDX
- DEN
Nonstop2h 40m
United Airlines
Sun 4/198:00 am
DEN
- PDX
Nonstop2h 48m
United Airlines
Deal found 3/19![United Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:30 am
PDX
- DEN
1 stop5h 19m
Delta
Fri 5/156:19 pm
DEN
- PDX
1 stop6h 25m
Delta
Deal found 3/19![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:30 am
PDX
- DEN
1 stop7h 30m
Southwest
Mon 5/114:25 pm
DEN
- PDX
2 stops7h 15m
Southwest
Deal found 3/22![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 pm
PDX
- DEN
1 stop4h 45m
Delta
Mon 8/176:25 pm
DEN
- PDX
1 stop6h 16m
Delta
Deal found 3/21![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/144:15 pm
PDX
- GJT
1 stop5h 02m
United Airlines
Tue 4/215:30 am
GJT
- PDX
1 stop5h 18m
United Airlines
Deal found 3/17![United Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/286:10 am
PDX
- DEN
Nonstop2h 30m
Southwest
Tue 6/210:10 am
DEN
- PDX
2 stops7h 15m
Southwest
Deal found 3/17![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/154:15 pm
PDX
- GJT
1 stop5h 02m
United Airlines
Wed 4/225:30 am
GJT
- PDX
1 stop5h 18m
United Airlines
Deal found 3/18![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:24 pm
PDX
- GJT
1 stop4h 11m
Delta
Tue 4/287:45 am
GJT
- PDX
1 stop5h 32m
Delta
Deal found 3/22![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/18:40 am
PDX
- HDN
1 stop4h 47m
United Airlines
Sun 4/53:25 pm
HDN
- PDX
1 stop6h 49m
United Airlines
Deal found 3/17![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:42 am
PDX
- DEN
2 stops9h 04m
Delta
Sun 5/36:55 am
DEN
- PDX
1 stop6h 57m
Delta
Deal found 3/19![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/2711:59 am
PDX
- ASE
1 stop7h 19m
American Airlines
Sat 5/3012:51 pm
ASE
- PDX
1 stop9h 48m
American Airlines
Deal found 3/17![American Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
PDX
- COS
1 stop5h 35m
Southwest
Sun 5/178:35 pm
COS
- PDX
1 stop5h 40m
Southwest
Deal found 3/20![Southwest logo]()
$312
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/15:00 am
PDX
- DRO
1 stop4h 54m
United Airlines
Sun 4/57:00 am
DRO
- PDX
1 stop7h 08m
United Airlines
Deal found 3/17![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:50 pm
PDX
- DEN
1 stop6h 40m
Delta
Wed 7/226:45 am
DEN
- PDX
1 stop4h 51m
Delta
Deal found 3/19![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:25 pm
PDX
- DEN
1 stop7h 15m
Southwest
Tue 4/2110:10 am
DEN
- PDX
2 stops7h 15m
Southwest
Deal found 3/19![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 6/28:50 am
PDX
- GUC
1 stop4h 49m
United Airlines
Sat 6/61:25 pm
GUC
- PDX
1 stop5h 21m
United Airlines
Deal found 3/18![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:42 am
PDX
- COS
2 stops10h 31m
Delta
Tue 5/511:55 am
COS
- PDX
1 stop5h 12m
Delta
Deal found 3/18![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 7/95:35 pm
PDX
- DEN
Nonstop2h 25m
Southwest
Mon 7/139:35 am
DEN
- PDX
2 stops6h 40m
Southwest
Deal found 3/18![Southwest logo]()
$337
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:00 am
PDX
- COS
1 stop6h 36m
United Airlines
Wed 4/296:00 am
COS
- PDX
1 stop4h 49m
United Airlines
Deal found 3/20![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/2710:52 am
PDX
- ASE
1 stop8h 13m
Delta
Sat 5/3012:00 pm
ASE
- PDX
2 stops10h 18m
Delta
Deal found 3/17![Delta logo]()
$334
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:00 am
PDX
- COS
1 stop6h 36m
United Airlines
Sat 4/116:00 am
COS
- PDX
1 stop4h 48m
United Airlines
Deal found 3/20![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/2810:55 am
PDX
- MTJ
1 stop7h 15m
Southwest
Mon 6/18:10 am
MTJ
- PDX
2 stops10h 15m
Southwest
Deal found 3/17![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/145:00 am
PDX
- COS
1 stop5h 05m
United Airlines
Tue 4/211:33 pm
COS
- PDX
1 stop5h 11m
United Airlines
Deal found 3/17![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:50 am
PDX
- MTJ
2 stops10h 05m
Southwest
Mon 6/18:10 am
MTJ
- PDX
2 stops10h 15m
Southwest
Deal found 3/17![Southwest logo]()
$356
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated March 22, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated March 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/25:40 am
PDX
- MTJ
1 stop7h 16m
American Airlines
Sun 4/512:14 pm
MTJ
- PDX
1 stop8h 02m
American Airlines
Deal found 3/18![American Airlines logo]()
$271
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/141:48 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sat 4/189:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 3/17![Frontier logo]()
$97
This iWofly deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:28 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2110:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 3/20![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:28 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/2210:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 3/21![Frontier logo]()
$107
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:10 pm
PDX
- COS
1 stop9h 55m
Southwest
Mon 4/208:00 pm
COS
- PDX
1 stop5h 25m
Southwest
Deal found 3/19![Southwest logo]()
$222
This Cheapflightsfares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sun 4/198:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 3/20![Frontier logo]()
$127
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/174:55 pm
PDX
- COS
1 stop6h 10m
Southwest
Fri 4/246:15 am
COS
- PDX
1 stop5h 30m
Southwest
Deal found 3/18![Southwest logo]()
$217
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2810:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 3/20![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sun 4/268:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 3/20![Frontier logo]()
$118
This Booking.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sun 4/268:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 3/17![Frontier logo]()
$113
This Booking.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sat 5/29:30 pm
DEN
- PDX
1 stop15h 20m
Frontier
Deal found 3/17![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/2912:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Thu 4/306:00 am
DEN
- PDX
1 stop6h 50m
Frontier
Deal found 3/17![Frontier logo]()
$117
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 March 22, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated March 22, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/1512:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 3/17![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:12 pm
PDX
- DEN
Nonstop2h 44m
Frontier
Deal found 3/18![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Deal found 3/21![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 3/21![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:15 am
PDX
- DEN
Nonstop2h 38m
Frontier
Deal found 3/21![Frontier logo]()
$87
This Super.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:54 am
PDX
- DEN
1 stop7h 22m
Frontier
Deal found 3/21![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:31 pm
PDX
- DEN
1 stop15h 33m
Frontier
Deal found 3/20![Frontier logo]()
$94
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/179:54 am
PDX
- DEN
1 stop22h 51m
Frontier
Deal found 3/17![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Deal found 3/22![Frontier logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/3012:23 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 3/17![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:00 am
PDX
- COS
1 stop5h 45m
Southwest
Deal found 3/17![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:25 am
PDX
- COS
1 stop11h 05m
Southwest
Deal found 3/21![Southwest logo]()
$114
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 March 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $97 (Cheapflightsfares) |
One-way from | $79 (Cheapflightsfares) |
Popular in | March |
Cheapest in | August |
Average price | $278 |
Good round-trip deal | $265 or less |
Good one-way deal | $151 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 March 22, 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
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Thu 4/16
5:00 am-11:35 am
1 stop5h 35m
Colorado Springs
Thu 4/23
7:20 pm-12:55 am
1 stop6h 35m
$217
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Tue 4/21
7:00 am-3:30 pm
2 stops7h 30m
Colorado Springs
Sat 4/25
1:10 pm-6:45 pm
1 stop6h 35m
$222
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 4/7
5:35 pm-12:45 am
1 stop6h 10m
Denver Intl
Sat 4/18
1:40 pm-6:08 pm
1 stop5h 28m
$232
Quickest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 4/17
7:05 pm-10:45 pm
Nonstop2h 40m
Denver Intl
Sun 4/19
8:00 am-9:48 am
Nonstop2h 48m
$237
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 4/23
6:05 pm-11:50 pm
1 stop4h 45m
Denver Intl
Mon 4/27
1:20 pm-5:10 pm
1 stop4h 50m
$245
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sun 5/10
5:30 am-11:49 am
1 stop5h 19m
Denver Intl
Fri 5/15
6:19 pm-11:44 pm
1 stop6h 25m
$257
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 5/8
5:30 am-2:00 pm
1 stop7h 30m
Denver Intl
Mon 5/11
4:25 pm-10:40 pm
2 stops7h 15m
$262
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 5/28
6:10 am-9:40 am
Nonstop2h 30m
Denver Intl
Tue 6/2
10:10 am-4:25 pm
2 stops7h 15m
$262
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 8/11
5:45 pm-11:30 pm
1 stop4h 45m
Denver Intl
Mon 8/17
6:25 pm-11:41 pm
1 stop6h 16m
$267
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Tue 4/14
4:15 pm-10:17 pm
1 stop5h 02m
Grand Junction Regnl
Tue 4/21
5:30 am-9:48 am
1 stop5h 18m
$271
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-EGE
PDX-HDN
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-EGE
What is the cheapest month to book a flight from Portland to Colorado?
Currently, January is the cheapest month in which you can book a flight from Portland to Colorado (average of $58). Flying from Portland to Colorado in February is currently the most expensive (average of $137). 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 March 22, 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 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 March 14, 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 March 22, 2026.
The most flights from PDX to USCO are scheduled on a Friday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 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 March 22, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andHawaiian Airlines from Portland to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Overall
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.
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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 March 22, 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 March 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$153 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$291 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$205 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$250 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$140 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$376 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$359 | FlexibilityNo cancel fee | On-time71% |