$81+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
May 8 — May 151
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Portland to ColoradoExplore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 8, 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 April 8, 2026.
This Frontier deal was found by Cheapflights users on 4/6. 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.
Tue 4/2112:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/2210:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/6![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Mon 4/279:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/5![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 4/6. 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.
Tue 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Mon 5/49:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sat 5/29:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$101
This Cheapflightsfares deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/291:40 pm
DEN
- PDX
1 stop23h 10m
Frontier
Deal found 4/4![Frontier logo]()
$102
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:15 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sat 5/29:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sat 5/29:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 4/6. 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.
Thu 4/3011:58 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sun 5/38:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 4/6![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Mon 5/49:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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.
Tue 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/299:30 pm
DEN
- PDX
1 stop15h 20m
Frontier
Deal found 4/6![Frontier logo]()
$113
This Delta deal was found by Cheapflights users on 4/7. 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.
Tue 4/285:45 am
PDX
- COS
1 stop4h 27m
Delta
Sat 5/98:15 am
COS
- PDX
1 stop5h 11m
Delta
Deal found 4/7![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 4/7. 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 4/2812:45 pm
PDX
- COS
2 stops7h 35m
Southwest
Fri 5/85:20 pm
COS
- PDX
2 stops8h 35m
Southwest
Deal found 4/7![Southwest logo]()
$227
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 April 8, 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 April 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
PDX
- DEN
Nonstop2h 50m
Alaska Airlines
Wed 5/611:46 am
DEN
- PDX
Nonstop2h 49m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 4/7. 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.
Wed 6/312:45 pm
PDX
- COS
2 stops7h 35m
Southwest
Sun 6/75:35 am
COS
- PDX
1 stop4h 55m
Southwest
Deal found 4/7![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:05 pm
PDX
- DEN
1 stop4h 35m
Delta
Sun 5/245:30 am
DEN
- PDX
1 stop4h 22m
Delta
Deal found 4/7![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 4/6. 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 6/126:50 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Mon 6/155:20 am
DEN
- PDX
1 stop6h 00m
United Airlines
Deal found 4/6![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
PDX
- MTJ
1 stop9h 59m
American Airlines
Wed 4/2212:42 pm
MTJ
- PDX
2 stops11h 21m
American Airlines
Deal found 4/3![American Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 4/6. 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.
Tue 5/125:05 pm
PDX
- DEN
1 stop4h 35m
Delta
Wed 5/2012:35 pm
DEN
- PDX
1 stop4h 25m
Delta
Deal found 4/6![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/6. 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.
Sat 5/27:10 am
PDX
- DEN
1 stop6h 10m
Southwest
Sat 5/910:30 am
DEN
- PDX
2 stops9h 20m
Southwest
Deal found 4/6![Southwest logo]()
$242
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:15 pm
PDX
- GJT
1 stop5h 03m
United Airlines
Sat 5/91:48 pm
GJT
- PDX
1 stop4h 56m
United Airlines
Deal found 4/3![United Airlines logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Tue 4/282:30 pm
PDX
- DEN
1 stop8h 29m
Alaska Airlines
Sat 5/28:00 am
DEN
- PDX
1 stop5h 52m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/113:30 pm
PDX
- DEN
1 stop7h 12m
Delta
Mon 7/136:30 am
DEN
- PDX
1 stop5h 07m
Delta
Deal found 4/5![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:00 am
PDX
- GJT
1 stop4h 49m
United Airlines
Sat 4/251:43 pm
GJT
- PDX
2 stops8h 05m
United Airlines
Deal found 4/5![United Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 pm
PDX
- DEN
1 stop4h 45m
Delta
Mon 8/176:25 pm
DEN
- PDX
1 stop6h 16m
Delta
Deal found 4/5![Delta logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:00 pm
PDX
- DEN
1 stop7h 56m
Alaska Airlines
Tue 9/15:32 pm
DEN
- PDX
1 stop5h 29m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:00 am
PDX
- DRO
1 stop4h 51m
United Airlines
Sat 9/195:20 am
DRO
- PDX
1 stop5h 01m
United Airlines
Deal found 4/3![United Airlines logo]()
$288
This Southwest deal was found by Cheapflights users on 4/7. 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 4/2010:55 am
PDX
- HDN
1 stop7h 15m
Southwest
Wed 4/229:00 am
HDN
- PDX
2 stops9h 35m
Southwest
Deal found 4/7![Southwest logo]()
$320
This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:05 pm
PDX
- COS
1 stop4h 08m
Delta
Wed 5/611:55 am
COS
- PDX
2 stops8h 22m
Delta
Deal found 4/3![Delta logo]()
$273
This American Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/3![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:00 am
PDX
- HDN
1 stop6h 40m
United Airlines
Wed 4/227:00 am
HDN
- PDX
1 stop7h 09m
United Airlines
Deal found 4/5![United Airlines logo]()
$288
This Southwest deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:35 am
PDX
- DEN
2 stops6h 50m
Southwest
Sat 5/3010:30 am
DEN
- PDX
2 stops9h 20m
Southwest
Deal found 4/3![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:50 pm
PDX
- DEN
1 stop4h 55m
Delta
Tue 6/236:41 pm
DEN
- PDX
1 stop6h 13m
Delta
Deal found 4/7![Delta logo]()
$287
This United Airlines deal was found by Cheapflights users on 4/6. 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 5/15:00 am
PDX
- GJT
1 stop4h 43m
United Airlines
Sun 5/35:30 am
GJT
- PDX
1 stop5h 08m
United Airlines
Deal found 4/6![United Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:50 am
PDX
- COS
1 stop5h 45m
Southwest
Tue 8/187:20 am
COS
- PDX
2 stops7h 45m
Southwest
Deal found 4/3![Southwest logo]()
$344
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
PDX
- DRO
1 stop6h 33m
United Airlines
Sun 5/105:30 am
DRO
- PDX
2 stops9h 36m
United Airlines
Deal found 4/5![United Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:05 pm
PDX
- COS
1 stop4h 17m
Delta
Tue 5/1211:55 am
COS
- PDX
1 stop7h 06m
Delta
Deal found 4/4![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:10 am
PDX
- EGE
1 stop7h 21m
American Airlines
Sun 5/242:12 pm
EGE
- PDX
1 stop9h 39m
American Airlines
Deal found 4/6![American Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 4/7. 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.
Sat 5/27:00 am
PDX
- DEN
2 stops8h 45m
Southwest
Sun 5/33:25 pm
DEN
- PDX
2 stops7h 45m
Southwest
Deal found 4/7![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:00 am
PDX
- COS
1 stop6h 26m
United Airlines
Wed 5/136:00 am
COS
- PDX
1 stop4h 38m
United Airlines
Deal found 4/5![United Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
PDX
- EGE
2 stops12h 09m
American Airlines
Tue 5/58:00 am
EGE
- PDX
2 stops14h 35m
American Airlines
Deal found 4/4![American Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:50 pm
PDX
- COS
1 stop4h 09m
United Airlines
Mon 8/106:32 pm
COS
- PDX
1 stop5h 31m
United Airlines
Deal found 4/3![United Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:35 pm
PDX
- ASE
1 stop5h 30m
Delta
Sat 5/3012:00 pm
ASE
- PDX
2 stops10h 18m
Delta
Deal found 4/3![Delta logo]()
$374
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated April 8, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated April 8, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/6. 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.
Tue 4/2112:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/2210:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/6![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sat 5/29:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Fri 5/19:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Mon 4/279:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/5![Frontier logo]()
$97
This Cheapflightsfares deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/291:40 pm
DEN
- PDX
1 stop23h 10m
Frontier
Deal found 4/4![Frontier logo]()
$102
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:15 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sat 5/29:49 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:48 am
PDX
- DEN
Nonstop2h 38m
Frontier
Wed 4/2910:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/6![Frontier logo]()
$106
This Frontier deal was found by Cheapflights users on 4/6. 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.
Tue 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Mon 5/49:10 am
DEN
- PDX
Nonstop2h 53m
Frontier
Deal found 4/6![Frontier logo]()
$98
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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.
Tue 4/2812:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/299:30 pm
DEN
- PDX
1 stop15h 20m
Frontier
Deal found 4/6![Frontier logo]()
$113
This Delta deal was found by Cheapflights users on 4/7. 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.
Tue 4/285:45 am
PDX
- COS
1 stop4h 27m
Delta
Sat 5/98:15 am
COS
- PDX
1 stop5h 11m
Delta
Deal found 4/7![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 4/7. 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.
Tue 4/2810:42 am
PDX
- COS
2 stops10h 31m
Delta
Wed 5/611:55 am
COS
- PDX
2 stops8h 22m
Delta
Deal found 4/7![Delta logo]()
$227
This Super.com deal was found by Cheapflights users on 4/6. 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.
Thu 4/3011:58 am
PDX
- DEN
Nonstop2h 38m
Frontier
Sun 5/38:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 4/6![Frontier logo]()
$107
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 April 8, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated April 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 4/4![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Sun 5/109:46 pm
PDX
- DEN
1 stop28h 39m
Frontier
Deal found 4/8![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 4/5![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 4/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2212:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Deal found 4/7![Frontier logo]()
$84
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:00 am
PDX
- DEN
Nonstop2h 37m
United Airlines
Deal found 4/7![United Airlines logo]()
$89
This Frontier deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:15 am
PDX
- DEN
1 stop5h 49m
Frontier
Deal found 4/5![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:15 am
PDX
- DEN
1 stop9h 12m
Frontier
Deal found 4/3![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 4/6. 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.
Thu 4/232:54 pm
PDX
- DEN
1 stop26h 22m
Frontier
Deal found 4/6![Frontier logo]()
$94
This Expedia deal was found by Cheapflights users on 4/7. 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.
Sat 4/2512:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 4/7![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 4/7. 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.
Wed 8/55:42 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Deal found 4/7![Frontier logo]()
$98
This Alaska Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:00 am
PDX
- DEN
Nonstop2h 50m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 4/6. 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 7/25:00 am
PDX
- COS
1 stop5h 45m
Southwest
Deal found 4/6![Southwest logo]()
$109
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 April 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $93 (Frontier) |
One-way from | $81 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $219 |
Good round-trip deal | $275 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 April 8, 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
Quickest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 5/5
7:00 am-10:50 am
Nonstop2h 50m
Denver Intl
Wed 5/6
11:46 am-1:35 pm
Nonstop2h 49m
$217
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Wed 6/3
12:45 pm-9:20 pm
2 stops7h 35m
Colorado Springs
Sun 6/7
5:35 am-9:30 am
1 stop4h 55m
$222
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 5/22
5:05 pm-10:40 pm
1 stop4h 35m
Denver Intl
Sun 5/24
5:30 am-8:52 am
1 stop4h 22m
$237
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 5/12
5:05 pm-10:40 pm
1 stop4h 35m
Denver Intl
Wed 5/20
12:35 pm-4:00 pm
1 stop4h 25m
$237
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sat 5/2
7:10 am-2:20 pm
1 stop6h 10m
Denver Intl
Sat 5/9
10:30 am-6:50 pm
2 stops9h 20m
$242
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 6/12
6:50 pm-10:28 pm
Nonstop2h 38m
Denver Intl
Mon 6/15
5:20 am-10:20 am
1 stop6h 00m
$257
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sat 7/11
3:30 pm-11:42 pm
1 stop7h 12m
Denver Intl
Mon 7/13
6:30 am-10:37 am
1 stop5h 07m
$267
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
Wed 5/6
4:15 pm-10:18 pm
1 stop5h 03m
Grand Junction Regnl
Sat 5/9
1:48 pm-5:44 pm
1 stop4h 56m
$271
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 4/28
2:30 pm-11:59 pm
1 stop8h 29m
Denver Intl
Sat 5/2
8:00 am-12:52 pm
1 stop5h 52m
$272
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Portland to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Portland with our price prediction graph.
PDX-DEN
PDX-COS
PDX-MTJ
PDX-GJT
PDX-DRO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portland to Colorado
PDX-USCO
PDX-DEN
PDX-COS
PDX-MTJ
PDX-GJT
What is the cheapest month to book a flight from Portland to Colorado?
Currently, March is the cheapest month in which you can book a flight from Portland to Colorado (average of $56). 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 April 8, 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 16% 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 April 4, 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 April 8, 2026.
The most flights from PDX to USCO are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 April 8, 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
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
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 April 8, 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 April 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$154 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$280 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$204 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$140 | Average$254 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$142 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$346 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$378 | FlexibilityNo cancel fee | On-time71% |