$109+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jul 11 — Jul 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portland to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Colorado
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to ColoradoExplore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
This Super.com deal was found by Cheapflights users on 6/6. 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 7/912:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/6![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/9![Frontier logo]()
$196
This Booking.com deal was found by Cheapflights users on 6/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2412:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 7/273:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/8![Frontier logo]()
$197
This Frontier deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:21 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sat 8/13:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/9![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:26 pm
PDX
- DEN
Nonstop2h 42m
Multiple Airlines
Wed 9/212:05 pm
DEN
- PDX
Nonstop2h 43m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:58 pm
PDX
- DEN
Nonstop2h 48m
Multiple Airlines
Thu 9/33:10 pm
DEN
- PDX
Nonstop2h 47m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$200
This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:42 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Thu 8/2710:39 pm
DEN
- PDX
1 stop14h 02m
Frontier
Deal found 6/10![Frontier logo]()
$201
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:35 am
PDX
- DEN
1 stop7h 35m
Southwest
Sat 9/124:50 pm
DEN
- PDX
Nonstop2h 35m
Southwest
Deal found 6/9![Southwest logo]()
$202
This Expedia deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:03 pm
PDX
- DEN
1 stop8h 41m
Multiple Airlines
Sun 9/202:45 pm
DEN
- PDX
Nonstop2h 50m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$203
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:50 pm
PDX
- DEN
Nonstop2h 38m
United Airlines
Mon 8/109:30 pm
DEN
- PDX
Nonstop2h 45m
United Airlines
Deal found 6/9![United Airlines logo]()
$204
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:50 am
PDX
- DEN
2 stops8h 20m
Southwest
Tue 9/14:00 pm
DEN
- PDX
1 stop4h 50m
Southwest
Deal found 6/9![Southwest logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/6. 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.
Tue 7/285:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 8/33:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/6![Frontier logo]()
$206
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 June 11, 2026.
Discover carefully curated flight deals from Portland to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:35 pm
PDX
- DEN
Nonstop2h 30m
Southwest
Mon 8/107:30 pm
DEN
- PDX
Nonstop2h 40m
Southwest
Deal found 6/8![Southwest logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 pm
PDX
- DEN
Nonstop2h 36m
Alaska Airlines
Wed 10/287:05 am
DEN
- PDX
1 stop7h 22m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:54 pm
PDX
- DEN
1 stop5h 04m
Delta
Mon 8/316:20 am
DEN
- PDX
1 stop5h 22m
Delta
Deal found 6/9![Delta logo]()
$243
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:00 am
PDX
- GJT
1 stop6h 38m
United Airlines
Tue 9/17:00 am
GJT
- PDX
1 stop7h 14m
United Airlines
Deal found 6/10![United Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:28 pm
PDX
- GJT
1 stop5h 48m
American Airlines
Thu 7/166:54 pm
GJT
- PDX
1 stop5h 14m
American Airlines
Deal found 6/9![American Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:15 pm
PDX
- DEN
1 stop4h 50m
Southwest
Wed 9/309:00 am
DEN
- PDX
2 stops7h 25m
Southwest
Deal found 6/10![Southwest logo]()
$243
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 8/35:45 am
PDX
- DEN
1 stop5h 19m
Delta
Wed 8/261:21 pm
DEN
- PDX
1 stop4h 53m
Delta
Deal found 6/7![Delta logo]()
$272
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:00 pm
PDX
- DEN
Nonstop2h 30m
Southwest
Sun 10/46:20 pm
DEN
- PDX
Nonstop2h 45m
Southwest
Deal found 6/10![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:45 am
PDX
- DEN
1 stop5h 02m
Delta
Thu 8/65:35 am
DEN
- PDX
1 stop4h 02m
Delta
Deal found 6/9![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:15 am
PDX
- MTJ
1 stop6h 26m
United Airlines
Wed 11/181:35 pm
MTJ
- PDX
1 stop5h 03m
United Airlines
Deal found 6/10![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 6/5. 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.
Thu 7/27:40 pm
PDX
- DEN
Nonstop2h 25m
Southwest
Mon 7/67:25 pm
DEN
- PDX
Nonstop2h 35m
Southwest
Deal found 6/5![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:00 am
PDX
- EGE
1 stop6h 03m
United Airlines
Sat 7/47:05 am
EGE
- PDX
1 stop6h 53m
United Airlines
Deal found 6/10![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:20 am
PDX
- DEN
1 stop5h 26m
Delta
Tue 7/75:40 am
DEN
- PDX
1 stop3h 57m
Delta
Deal found 6/10![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:25 pm
PDX
- COS
1 stop5h 25m
Southwest
Mon 8/106:30 am
COS
- PDX
2 stops13h 50m
Southwest
Deal found 6/9![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 11/1112:40 pm
PDX
- COS
1 stop6h 28m
United Airlines
Thu 11/126:35 pm
COS
- PDX
1 stop5h 03m
United Airlines
Deal found 6/7![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 6/7. 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 6/305:30 am
PDX
- DEN
1 stop5h 50m
Delta
Tue 7/75:40 am
DEN
- PDX
1 stop3h 57m
Delta
Deal found 6/7![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:00 pm
PDX
- COS
1 stop7h 25m
Southwest
Wed 7/157:05 pm
COS
- PDX
1 stop5h 50m
Southwest
Deal found 6/8![Southwest logo]()
$307
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 pm
PDX
- DRO
1 stop7h 09m
United Airlines
Sun 9/65:15 am
DRO
- PDX
1 stop5h 18m
United Airlines
Deal found 6/10![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:00 pm
PDX
- COS
1 stop7h 25m
Southwest
Fri 7/247:55 pm
COS
- PDX
1 stop5h 40m
Southwest
Deal found 6/8![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:08 pm
PDX
- COS
1 stop4h 20m
Delta
Sun 8/236:16 pm
COS
- PDX
1 stop6h 23m
Delta
Deal found 6/10![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:00 am
PDX
- DRO
1 stop4h 51m
United Airlines
Wed 10/286:00 pm
DRO
- PDX
1 stop5h 38m
United Airlines
Deal found 6/8![United Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:55 pm
PDX
- COS
1 stop4h 50m
Southwest
Fri 7/39:05 pm
COS
- PDX
1 stop5h 15m
Southwest
Deal found 6/9![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Sat 8/295:00 am
PDX
- DRO
1 stop6h 32m
United Airlines
Tue 9/15:15 am
DRO
- PDX
1 stop5h 17m
United Airlines
Deal found 6/6![United Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:15 pm
PDX
- GUC
2 stops11h 50m
American Airlines
Wed 7/2912:45 pm
GUC
- PDX
1 stop9h 44m
American Airlines
Deal found 6/10![American Airlines logo]()
$621
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:20 am
PDX
- GJT
2 stops10h 58m
Delta
Sun 8/96:53 pm
GJT
- PDX
1 stop5h 46m
Delta
Deal found 6/10![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Fri 8/285:00 am
PDX
- MTJ
1 stop6h 45m
United Airlines
Sat 9/51:42 pm
MTJ
- PDX
2 stops10h 03m
United Airlines
Deal found 6/7![United Airlines logo]()
$378
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:50 am
PDX
- MTJ
1 stop9h 55m
Southwest
Fri 7/108:00 am
MTJ
- PDX
2 stops8h 45m
Southwest
Deal found 6/8![Southwest logo]()
$346
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:30 am
PDX
- GJT
2 stops10h 47m
Delta
Fri 7/316:56 pm
GJT
- PDX
1 stop5h 48m
Delta
Deal found 6/7![Delta logo]()
$403
This Southwest deal was found by Cheapflights users on 6/6. 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.
Fri 7/34:25 pm
PDX
- COS
2 stops7h 55m
Southwest
Thu 7/99:05 pm
COS
- PDX
1 stop5h 20m
Southwest
Deal found 6/6![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:00 am
PDX
- DRO
1 stop4h 51m
United Airlines
Mon 9/215:15 am
DRO
- PDX
1 stop5h 17m
United Airlines
Deal found 6/9![United Airlines logo]()
$408
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated June 11, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 6/7. 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 7/15:20 pm
PDX
- DEN
Nonstop2h 41m
Frontier
Sat 7/43:10 pm
DEN
- PDX
Nonstop2h 47m
Frontier
Deal found 6/7![Frontier logo]()
$227
This Super.com deal was found by Cheapflights users on 6/6. 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 7/212:26 pm
PDX
- DEN
Nonstop2h 42m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/6![Frontier logo]()
$230
This Super.com deal was found by Cheapflights users on 6/6. 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 7/912:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/6![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1112:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/142:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/9![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:21 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/282:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/9![Frontier logo]()
$224
This Flightnetwork deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 7/273:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/9![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Tue 7/282:50 pm
DEN
- PDX
Nonstop2h 41m
Frontier
Deal found 6/9![Frontier logo]()
$225
This Booking.com deal was found by Cheapflights users on 6/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2412:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 7/273:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/8![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 6/6. 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.
Tue 7/285:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 8/33:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/6![Frontier logo]()
$206
This Super.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Mon 8/173:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/10![Frontier logo]()
$214
This Super.com deal was found by Cheapflights users on 6/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:16 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Fri 8/73:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/8![Frontier logo]()
$218
This Frontier deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:21 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Sat 8/13:08 pm
DEN
- PDX
Nonstop2h 43m
Frontier
Deal found 6/9![Frontier logo]()
$198
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 June 11, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:49 pm
PDX
- DEN
Nonstop2h 39m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:20 pm
PDX
- DEN
Nonstop2h 43m
Frontier
Deal found 6/9![Frontier logo]()
$110
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:00 am
PDX
- DEN
Nonstop2h 39m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$112
This United Airlines deal was found by Cheapflights users on 6/6. 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 9/23:43 pm
PDX
- DEN
1 stop6h 59m
United Airlines
Deal found 6/6![United Airlines logo]()
$114
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:43 pm
PDX
- DEN
1 stop6h 59m
United Airlines
Deal found 6/9![United Airlines logo]()
$117
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:25 pm
PDX
- DEN
1 stop7h 33m
Delta
Deal found 6/8![Delta logo]()
$119
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:30 am
PDX
- DEN
1 stop5h 47m
Delta
Deal found 6/10![Delta logo]()
$122
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:43 pm
PDX
- DEN
1 stop6h 59m
United Airlines
Deal found 6/8![United Airlines logo]()
$124
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:25 pm
PDX
- COS
1 stop5h 25m
Southwest
Deal found 6/10![Southwest logo]()
$126
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:20 am
PDX
- DEN
2 stops6h 15m
Southwest
Deal found 6/8![Southwest logo]()
$127
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:45 pm
PDX
- DEN
1 stop4h 43m
Delta
Deal found 6/8![Delta logo]()
$128
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 8/315:54 pm
PDX
- DEN
1 stop5h 04m
Delta
Deal found 6/7![Delta logo]()
$129
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $195 (Super.com) |
One-way from | $109 (CheapOair) |
Popular in | March |
Cheapest in | August |
Average price | $281 |
Good round-trip deal | $300 or less |
Good one-way deal | $172 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 June 11, 2026.
Use the filters below to find and compare flights from Portland to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 8/6
7:35 pm-11:05 pm
Nonstop2h 30m
Denver Intl
Mon 8/10
7:30 pm-9:10 pm
Nonstop2h 40m
$223
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sat 10/24
6:00 pm-9:36 pm
Nonstop2h 36m
Denver Intl
Wed 10/28
7:05 am-1:27 pm
1 stop7h 22m
$227
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 8/17
5:54 pm-11:58 pm
1 stop5h 04m
Denver Intl
Mon 8/31
6:20 am-10:42 am
1 stop5h 22m
$243
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 9/28
5:15 pm-11:05 pm
1 stop4h 50m
Denver Intl
Wed 9/30
9:00 am-3:25 pm
2 stops7h 25m
$243
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 9/30
4:00 pm-7:30 pm
Nonstop2h 30m
Denver Intl
Sun 10/4
6:20 pm-8:05 pm
Nonstop2h 45m
$261
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Fri 8/28
5:00 am-12:38 pm
1 stop6h 38m
Grand Junction Regnl
Tue 9/1
7:00 am-1:14 pm
1 stop7h 14m
$271
PortlandDenver
PDX - DEN
PDXDEN
Portland
Mon 8/3
5:45 am-12:04 pm
1 stop5h 19m
Denver Intl
Wed 8/26
1:21 pm-5:14 pm
1 stop4h 53m
$272
PortlandDenver
PDX - DEN
PDXDEN
Portland
Sun 8/2
5:45 am-11:47 am
1 stop5h 02m
Denver Intl
Thu 8/6
5:35 am-8:37 am
1 stop4h 02m
$275
Quickest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Thu 7/2
7:40 pm-11:05 pm
Nonstop2h 25m
Denver Intl
Mon 7/6
7:25 pm-9:00 pm
Nonstop2h 35m
$287
PortlandGrand Junction
PDX - GJT
PDXGJT
Portland
Thu 7/9
5:28 pm-12:16 am
1 stop5h 48m
Grand Junction Regnl
Thu 7/16
6:54 pm-11:08 pm
1 stop5h 14m
$295
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-GJT
PDX-MTJ
PDX-EGE
PDX-COS
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-GJT
PDX-MTJ
PDX-EGE
What is the cheapest month to book a flight from Portland to Colorado?
Currently, April is the cheapest month in which you can book a flight from Portland to Colorado (average of $28). Flying from Portland to Colorado in June is currently the most expensive (average of $580). 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 June 11, 2026.
One of the essential ways to save on airfare from Portland to Colorado is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.
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 June 11, 2026.
The most flights from PDX to USCO are scheduled on a Wednesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Portland to Colorado?
How far ahead should I book a flight from Portland to Colorado?
The best time to book flights from Portland to Colorado is 76 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 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 June 8, 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. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated June 11, 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.
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Portland to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Portland to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Colorado by cabin class
Find flights from Portland to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Colorado flights
Browse other Portland and Colorado flight options. Last updated on June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Colorado flights
Consider these flights traveling from Portland to Colorado.
Top 8 airlines flying from Portland to Colorado
Discover the top 8 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$159 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$295 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$207 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$126 | Average$244 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$140 | Average$263 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$363 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$147 | Average$398 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$413 | FlexibilityNo cancel fee | On-time71% |