$114+ Cheap flights from Portland (PDX) to Colorado
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Oct 24 — Oct 311
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 September 24, 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 September 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:02 pm -
Nonstop2h 33m
Sun 11/19:15 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:02 pm -
Nonstop2h 33m
Sun 11/19:15 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:02 pm -
Nonstop2h 33m
Thu 10/299:10 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$189
This Super.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:07 pm -
Nonstop2h 33m
Tue 11/39:10 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$198
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:49 am -
Nonstop2h 38m
Tue 10/279:10 am -
Nonstop2h 57m
Deal found 9/20![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/261:52 pm -
Nonstop2h 38m
Thu 12/32:12 pm -
Nonstop2h 55m
Deal found 9/22![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/314:35 pm -
Nonstop2h 32m
Thu 1/71:03 pm -
Nonstop3h 00m
Deal found 9/21![Frontier logo]()
$206
This Super.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:49 am -
Nonstop2h 38m
Sun 10/259:00 am -
Nonstop2h 54m
Deal found 9/21![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/314:35 pm -
Nonstop2h 32m
Tue 1/51:03 pm -
Nonstop3h 00m
Deal found 9/21![Frontier logo]()
$211
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:40 am -
1 stop5h 09m
Sat 10/311:35 pm -
1 stop5h 34m
Deal found 9/21![United Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
1 stop4h 51m
Sat 10/2410:25 am -
1 stop5h 40m
Deal found 9/21![United Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
1 stop6h 33m
Mon 10/265:00 am -
1 stop5h 36m
Deal found 9/20![United Airlines logo]()
$330
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 September 24, 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 September 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:03 pm -
Nonstop2h 33m
Mon 10/267:53 am -
Nonstop2h 49m
Deal found 9/21![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:30 pm -
1 stop7h 15m
Wed 11/112:25 pm -
2 stops10h 00m
Deal found 9/21![Southwest logo]()
$292
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:49 pm -
1 stop5h 06m
Mon 11/210:45 am -
1 stop6h 25m
Deal found 9/19![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
1 stop4h 51m
Sat 10/2410:25 am -
1 stop5h 40m
Deal found 9/21![United Airlines logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:08 am -
1 stop5h 50m
Mon 11/237:29 am -
Nonstop3h 11m
Deal found 9/20![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:55 pm -
1 stop7h 15m
Thu 10/292:55 pm -
2 stops6h 40m
Deal found 9/21![Southwest logo]()
$302
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
1 stop6h 33m
Mon 10/265:00 am -
1 stop5h 36m
Deal found 9/20![United Airlines logo]()
$330
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:49 pm -
1 stop7h 23m
Wed 11/48:20 am -
2 stops9h 14m
Deal found 9/22![Alaska Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:51 am -
2 stops8h 47m
Sat 10/315:00 am -
2 stops8h 22m
Deal found 9/21![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:30 am -
2 stops6h 55m
Sun 10/255:55 am -
1 stop7h 30m
Deal found 9/19![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 12/15:45 am -
1 stop5h 51m
Mon 12/71:11 pm -
2 stops9h 55m
Deal found 9/23![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:45 pm -
1 stop6h 52m
Sat 10/173:23 pm -
1 stop6h 47m
Deal found 9/20![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/305:18 pm -
1 stop4h 06m
Sat 1/95:55 pm -
1 stop5h 41m
Deal found 9/20![Delta logo]()
$406
This Southwest deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:55 pm -
2 stops8h 20m
Wed 10/214:10 pm -
1 stop7h 05m
Deal found 9/20![Southwest logo]()
$371
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:40 am -
1 stop4h 47m
Sat 10/247:15 am -
1 stop7h 00m
Deal found 9/22![United Airlines logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/52:53 pm -
1 stop24h 52m
Sun 1/104:15 pm -
1 stop22h 20m
Deal found 9/20![Alaska Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
2 stops8h 10m
Tue 11/38:45 am -
2 stops7h 50m
Deal found 9/19![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:00 am -
1 stop6h 45m
Sat 11/147:00 am -
2 stops8h 37m
Deal found 9/20![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:45 pm -
1 stop6h 45m
Sat 10/241:34 pm -
2 stops8h 26m
Deal found 9/20![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:45 am -
1 stop5h 51m
Sun 12/61:11 pm -
2 stops9h 55m
Deal found 9/22![Delta logo]()
$458
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/216:50 am -
2 stops11h 20m
Sat 10/249:05 am -
2 stops10h 35m
Deal found 9/23![Southwest logo]()
$381
This Alaska Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1810:40 am -
Nonstop2h 25m
Wed 3/245:25 pm -
1 stop7h 45m
Deal found 9/20![Alaska Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 2/1310:25 am -
1 stop7h 45m
Wed 2/179:00 am -
2 stops11h 00m
Deal found 9/23![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:55 pm -
1 stop4h 04m
Mon 10/265:30 am -
1 stop5h 06m
Deal found 9/21![United Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:20 pm -
1 stop7h 30m
Sun 11/18:30 am -
2 stops7h 30m
Deal found 9/22![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:25 pm -
1 stop6h 34m
Sat 10/315:10 pm -
1 stop5h 03m
Deal found 9/23![United Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 2/259:00 am -
2 stops10h 05m
Sun 2/288:20 am -
1 stop7h 25m
Deal found 9/24![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/304:25 pm -
1 stop6h 34m
Sun 11/15:30 am -
1 stop5h 06m
Deal found 9/23![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:15 am -
2 stops7h 20m
Sun 1/101:15 pm -
2 stops7h 35m
Deal found 9/22![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/2412:45 pm -
1 stop6h 52m
Sun 11/11:40 pm -
1 stop5h 29m
Deal found 9/23![United Airlines logo]()
$388
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated September 24, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/145:00 am -
1 stop6h 35m
Sat 10/177:15 am -
1 stop7h 00m
Deal found 9/23![United Airlines logo]()
$339
This Super.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:49 am -
Nonstop2h 38m
Tue 10/209:00 am -
Nonstop2h 54m
Deal found 9/20![Frontier logo]()
$215
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:49 am -
Nonstop2h 38m
Tue 10/279:10 am -
Nonstop2h 57m
Deal found 9/20![Frontier logo]()
$199
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
1 stop4h 51m
Sat 10/2410:25 am -
1 stop5h 40m
Deal found 9/21![United Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 am -
1 stop6h 33m
Mon 10/265:00 am -
1 stop5h 36m
Deal found 9/20![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/215:00 am -
1 stop6h 31m
Sat 10/241:34 pm -
1 stop5h 12m
Deal found 9/24![United Airlines logo]()
$339
This Super.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:49 am -
Nonstop2h 38m
Sun 10/259:00 am -
Nonstop2h 54m
Deal found 9/21![Frontier logo]()
$208
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:40 am -
1 stop5h 09m
Sat 10/311:35 pm -
1 stop5h 34m
Deal found 9/21![United Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:02 pm -
Nonstop2h 33m
Sun 11/19:15 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:02 pm -
Nonstop2h 33m
Thu 10/299:10 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:02 pm -
Nonstop2h 33m
Sun 11/19:15 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$186
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:06 am -
1 stop5h 57m
Tue 11/39:10 am -
Nonstop2h 57m
Deal found 9/21![Frontier logo]()
$220
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 September 24, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Super.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:49 am -
Nonstop2h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/224:35 pm -
Nonstop2h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$115
This Expedia deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:07 pm -
Nonstop2h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$117
This deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/261:52 pm -
Nonstop2h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:06 am -
1 stop27h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$124
This Super.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:06 am -
1 stop5h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$125
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:06 am -
1 stop21h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:49 am -
Nonstop2h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Alaska Airlines logo]()
$128
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:43 am -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:49 am -
Nonstop2h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:49 am -
Nonstop2h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$131
This Southwest deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/101:50 pm -
1 stop5h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Southwest logo]()
$170
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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $186 (Cheapflightsfares) |
One-way from | $114 (Super.com) |
Popular in | June |
Cheapest in | January |
Average price | $307 |
Good round-trip deal | $338 or less |
Good one-way deal | $175 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 7,457,451 searches. Data last updated September 24, 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 Portland - DEN Denver Intl
PDXDEN
Portland
Wed 11/18
5:51 pm-11:47 pm
1 stop4h 56m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$139
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Mon 10/19
5:49 pm-11:55 pm
1 stop5h 06m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Wed 11/18
7:04 am-5:39 pm
2 stops9h 35m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$153
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Tue 11/17
7:04 am-7:19 pm
2 stops11h 15m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$157
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Thu 10/29
7:18 am-11:59 pm
2 stops15h 41m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$163
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Sat 10/31
9:03 am-10:12 pm
1 stop12h 09m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$167
PortlandMontrose
PDX Portland - MTJ Montrose County
PDXMTJ
Portland
Thu 12/10
1:50 pm-7:50 pm
1 stop5h 00m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$170
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Wed 10/21
1:49 pm-6:01 pm
1 stop27h 12m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$177
PortlandColorado Springs
PDX Portland - COS Colorado Springs
PDXCOS
Portland
Mon 1/25
4:05 pm-8:56 pm
1 stop3h 51m
Colorado Springs
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$178
PortlandColorado Springs
PDX Portland - COS Colorado Springs
PDXCOS
Portland
Tue 12/8
5:00 am-10:34 am
1 stop4h 34m
Colorado Springs
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$178
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-DRO
PDX-MTJ
PDX-GJT
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-DRO
PDX-MTJ
PDX-GJT
What is the cheapest month to book a flight from Portland to Colorado?
Currently, January is the cheapest month in which you can book a flight from Portland to Colorado (average of $228). Flying from Portland to Colorado in June is currently the most expensive (average of $340). 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 September 24, 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 afternoon could potentially save you up to 18% 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 September 24, 2026.
The most flights from PDX to USCO are scheduled on a Wednesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Portland to Colorado?
Airfare is below average for this route at the moment.
Portland to Colorado flights typically cost between $202 and $354 in October.The cheapest round-trip price found within the last 5 days was $186 on Frontier (Oct 22-Oct 25).
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 September 19, 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. Monday mornings 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 September 24, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andUnited Airlines from Portland to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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 September 24, 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 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$201 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$309 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$126 | Average$279 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$286 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$429 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$149 | Average$425 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$412 | FlexibilityNo cancel fee | On-time71% |