$89+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jun 5 — Jun 121
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 May 6, 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 6, 2026.
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Tue 5/263:15 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/4![Frontier logo]()
$148
This Cheapflightsfares deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/710:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 5/4![Frontier logo]()
$149
This Booking.com deal was found by Cheapflights users on 5/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Sat 5/303:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/3![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 5/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Wed 5/275:58 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$153
This Super.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/3012:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sat 6/63:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/2![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/2512:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 5/312:00 pm
DEN
- PDX
1 stop22h 50m
Frontier
Deal found 5/2![Frontier logo]()
$157
This Frontier deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/25:46 pm
PDX
- DEN
Nonstop2h 52m
Frontier
Sat 6/63:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/2![Frontier logo]()
$158
This Super.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 5/243:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/1![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Tue 5/265:46 pm
PDX
- DEN
Nonstop2h 52m
Multiple Airlines
Sat 5/305:58 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Tue 5/265:46 pm
PDX
- DEN
Nonstop2h 52m
Multiple Airlines
Wed 6/312:02 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$162
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:30 am
PDX
- COS
1 stop6h 05m
Southwest
Sat 6/64:50 pm
COS
- PDX
1 stop6h 30m
Southwest
Deal found 5/4![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:45 am
PDX
- COS
2 stops8h 55m
Southwest
Mon 8/101:30 pm
COS
- PDX
2 stops6h 50m
Southwest
Deal found 5/5![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 May 6, 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 6, 2026.
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:30 am
PDX
- COS
1 stop6h 05m
Southwest
Sat 6/67:10 pm
COS
- PDX
1 stop5h 15m
Southwest
Deal found 5/4![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:30 am
PDX
- COS
2 stops9h 44m
Delta
Tue 9/85:55 pm
COS
- PDX
1 stop5h 46m
Delta
Deal found 5/4![Delta logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/256:04 pm
PDX
- DEN
Nonstop2h 36m
Alaska Airlines
Sat 6/278:00 am
DEN
- PDX
Nonstop2h 46m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:50 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Sun 7/55:15 am
DEN
- PDX
1 stop6h 05m
United Airlines
Deal found 5/2![United Airlines logo]()
$270
This American Airlines deal was found by Cheapflights users on 5/4. 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.
Fri 6/123:30 pm
PDX
- GJT
1 stop5h 25m
American Airlines
Tue 6/164:56 pm
GJT
- PDX
1 stop8h 54m
American Airlines
Deal found 5/4![American Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 5/3. 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.
Tue 8/259:29 am
PDX
- DEN
1 stop7h 19m
Delta
Thu 8/275:18 am
DEN
- PDX
1 stop4h 19m
Delta
Deal found 5/3![Delta logo]()
$267
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.
Wed 5/275:00 am
PDX
- HDN
1 stop6h 24m
United Airlines
Mon 6/13:20 pm
HDN
- PDX
1 stop6h 50m
United Airlines
Deal found 5/6![United Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 7/207:40 pm
PDX
- DEN
Nonstop2h 25m
Southwest
Tue 7/215:05 pm
DEN
- PDX
1 stop7h 45m
Southwest
Deal found 5/2![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/125:24 pm
PDX
- GJT
1 stop3h 30m
Delta
Tue 6/167:40 am
GJT
- PDX
1 stop5h 30m
Delta
Deal found 5/1![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/156:50 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Fri 6/199:15 pm
DEN
- PDX
Nonstop2h 45m
United Airlines
Deal found 5/2![United Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 5/3. 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 5/2212:40 am
PDX
- DRO
1 stop9h 15m
American Airlines
Thu 6/46:48 pm
DRO
- PDX
1 stop5h 20m
American Airlines
Deal found 5/3![American Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 5/4. 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.
Wed 6/310:52 am
PDX
- COS
2 stops10h 30m
Delta
Sat 6/68:15 am
COS
- PDX
2 stops7h 31m
Delta
Deal found 5/4![Delta logo]()
$278
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/235:10 am
PDX
- DEN
1 stop5h 50m
Southwest
Tue 6/238:55 pm
DEN
- PDX
Nonstop2h 40m
Southwest
Deal found 5/1![Southwest logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/165:50 pm
PDX
- DEN
1 stop5h 09m
Alaska Airlines
Sun 5/178:00 am
DEN
- PDX
Nonstop2h 49m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/295:00 am
PDX
- HDN
1 stop6h 24m
United Airlines
Tue 6/23:20 pm
HDN
- PDX
1 stop6h 50m
United Airlines
Deal found 5/1![United Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:20 am
PDX
- GJT
1 stop5h 11m
American Airlines
Sun 7/196:54 pm
GJT
- PDX
1 stop5h 14m
American Airlines
Deal found 5/5![American Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/187:50 am
PDX
- DEN
2 stops8h 20m
Southwest
Wed 8/193:30 pm
DEN
- PDX
2 stops7h 25m
Southwest
Deal found 5/1![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:43 pm
PDX
- COS
2 stops7h 06m
United Airlines
Wed 8/195:30 am
COS
- PDX
1 stop4h 51m
United Airlines
Deal found 5/3![United Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 8/205:17 pm
PDX
- COS
1 stop4h 39m
Delta
Sun 8/237:50 am
COS
- PDX
1 stop5h 21m
Delta
Deal found 5/5![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/125:00 am
PDX
- COS
2 stops8h 05m
Southwest
Mon 6/154:55 pm
COS
- PDX
2 stops8h 35m
Southwest
Deal found 5/4![Southwest logo]()
$322
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 stop8h 27m
American Airlines
Deal found 5/2![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 5/3. 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 6/311:45 am
PDX
- MTJ
2 stops7h 10m
Southwest
Wed 6/108:15 am
MTJ
- PDX
1 stop9h 55m
Southwest
Deal found 5/3![Southwest logo]()
$322
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 6/247:20 am
PDX
- COS
2 stops9h 20m
Delta
Thu 7/26:20 pm
COS
- PDX
1 stop5h 20m
Delta
Deal found 5/6![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:50 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Fri 6/199:15 pm
DEN
- PDX
Nonstop2h 45m
United Airlines
Deal found 5/5![United Airlines logo]()
$327
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.
Tue 8/111:25 pm
PDX
- MTJ
1 stop5h 00m
Southwest
Tue 8/189:05 am
MTJ
- PDX
2 stops10h 10m
Southwest
Deal found 5/6![Southwest logo]()
$326
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/25:00 am
PDX
- GUC
1 stop6h 44m
United Airlines
Tue 6/93:20 pm
GUC
- PDX
1 stop6h 50m
United Airlines
Deal found 5/5![United Airlines logo]()
$336
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:28 pm
PDX
- DRO
1 stop5h 34m
American Airlines
Sun 7/196:43 pm
DRO
- PDX
1 stop5h 25m
American Airlines
Deal found 5/6![American Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:15 pm
PDX
- DEN
1 stop4h 50m
Southwest
Mon 8/314:10 pm
DEN
- PDX
2 stops7h 00m
Southwest
Deal found 5/5![Southwest logo]()
$327
This Orbitz deal was found by Cheapflights users on 5/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:27 pm
PDX
- ASE
1 stop18h 56m
Alaska Airlines
Sun 7/196:01 pm
ASE
- PDX
1 stop6h 55m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/210:52 am
PDX
- ASE
1 stop8h 13m
Delta
Wed 6/1012:03 pm
ASE
- PDX
1 stop5h 39m
Delta
Deal found 5/2![Delta logo]()
$369
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated May 6, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Tue 5/263:15 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/4![Frontier logo]()
$148
This Booking.com deal was found by Cheapflights users on 5/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Sat 5/303:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/3![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 5/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Wed 5/275:58 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$153
This Super.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/2312:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 5/243:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/1![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/2512:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 5/312:00 pm
DEN
- PDX
1 stop22h 50m
Frontier
Deal found 5/2![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Tue 5/265:46 pm
PDX
- DEN
Nonstop2h 52m
Multiple Airlines
Sat 5/305:58 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Tue 5/265:46 pm
PDX
- DEN
Nonstop2h 52m
Multiple Airlines
Wed 6/312:02 pm
DEN
- PDX
Nonstop2h 48m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$162
This Super.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/3012:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sat 6/63:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/2![Frontier logo]()
$156
This Frontier deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/25:46 pm
PDX
- DEN
Nonstop2h 52m
Frontier
Sat 6/63:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 5/2![Frontier logo]()
$158
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:30 am
PDX
- COS
1 stop6h 05m
Southwest
Sat 6/64:50 pm
COS
- PDX
1 stop6h 30m
Southwest
Deal found 5/4![Southwest logo]()
$217
This Cheapflightsfares deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/710:39 pm
DEN
- PDX
1 stop14h 11m
Frontier
Deal found 5/4![Frontier logo]()
$149
This Delta deal was found by Cheapflights users on 5/3. 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.
Fri 6/55:45 am
PDX
- COS
1 stop4h 30m
Delta
Mon 6/88:14 am
COS
- PDX
2 stops9h 28m
Delta
Deal found 5/3![Delta logo]()
$242
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 6, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Super.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/305:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Deal found 5/1![Frontier logo]()
$89
This Cheapflightsfares deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/158:46 pm
PDX
- DEN
1 stop5h 39m
Frontier
Deal found 5/1![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Thu 5/285:31 pm
PDX
- DEN
1 stop6h 07m
Frontier
Deal found 5/4![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:31 pm
PDX
- DEN
1 stop15h 33m
Frontier
Deal found 5/2![Frontier logo]()
$103
This Cheapflightsfares deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:42 pm
PDX
- DEN
1 stop5h 54m
Frontier
Deal found 5/5![Frontier logo]()
$108
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:00 am
PDX
- COS
1 stop5h 20m
Southwest
Deal found 5/4![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/266:40 am
PDX
- DEN
Nonstop2h 25m
Southwest
Deal found 5/1![Southwest logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/298:42 pm
PDX
- DEN
1 stop6h 16m
Frontier
Deal found 5/4![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 5/5. 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.
Tue 6/235:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Deal found 5/5![Frontier logo]()
$113
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:45 am
PDX
- COS
2 stops8h 55m
Southwest
Deal found 5/5![Southwest logo]()
$114
This Cheapflightsfares deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/128:42 pm
PDX
- DEN
1 stop6h 16m
Frontier
Deal found 5/5![Frontier logo]()
$114
This Cheapflightsfares deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:26 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 5/5![Frontier logo]()
$115
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $148 (Frontier) |
One-way from | $89 (Super.com) |
Popular in | March |
Cheapest in | August |
Average price | $244 |
Good round-trip deal | $300 or less |
Good one-way deal | $152 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 6, 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
Wed 6/3
5:30 am-12:35 pm
1 stop6h 05m
Colorado Springs
Sat 6/6
7:10 pm-11:25 pm
1 stop5h 15m
$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
Quickest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 6/25
6:04 pm-9:40 pm
Nonstop2h 36m
Denver Intl
Sat 6/27
8:00 am-9:46 am
Nonstop2h 46m
$262
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 8/25
9:29 am-5:48 pm
1 stop7h 19m
Denver Intl
Thu 8/27
5:18 am-8:37 am
1 stop4h 19m
$267
PortlandDenver
PDX - DEN
PDXDEN
Portland
Fri 7/3
6:50 pm-10:28 pm
Nonstop2h 38m
Denver Intl
Sun 7/5
5:15 am-10:20 am
1 stop6h 05m
$270
PortlandHayden
PDX - HDN
PDXHDN
Portland
Wed 5/27
5:00 am-12:24 pm
1 stop6h 24m
Hayden Yampa Valley
Mon 6/1
3:20 pm-9:10 pm
1 stop6h 50m
$271
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Fri 6/12
5:24 pm-9:54 pm
1 stop3h 30m
Grand Junction Regnl
Tue 6/16
7:40 am-12:10 pm
1 stop5h 30m
$271
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 7/20
7:40 pm-11:05 pm
Nonstop2h 25m
Denver Intl
Tue 7/21
5:05 pm-11:50 pm
1 stop7h 45m
$272
PortlandColorado Springs
PDX - COS
PDXCOS
Portland
Wed 6/3
10:52 am-10:22 pm
2 stops10h 30m
Colorado Springs
Sat 6/6
8:15 am-2:46 pm
2 stops7h 31m
$278
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Fri 6/12
3:30 pm-9:55 pm
1 stop5h 25m
Grand Junction Regnl
Tue 6/16
4:56 pm-12:50 am
1 stop8h 54m
$280
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-GJT
PDX-HDN
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-GJT
PDX-HDN
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 6, 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 17% 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 2, 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 6, 2026.
The most flights from PDX to USCO are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 6, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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.
Comfort
7.8
Food
7.1
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Food
7.1
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Food
7.1
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Food
7.1
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Food
7.1
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Food
7.1
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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 May 6, 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 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$154 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$285 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$196 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$258 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$145 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$302 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$402 | FlexibilityNo cancel fee | On-time71% |