$107+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Sep 24 — Oct 11
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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
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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 August 25, 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 August 25, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 10/811:49 am -
Nonstop2h 38m
Sun 10/119:00 am -
Nonstop2h 54m
Deal found 8/21![Frontier logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 8/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/212:38 pm -
Nonstop2h 40m
Mon 10/510:00 am -
Nonstop2h 43m
Deal found 8/23![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:38 pm -
Nonstop2h 40m
Thu 10/299:10 am -
Nonstop2h 57m
Deal found 8/20![Frontier logo]()
$178
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 9/1712:38 pm -
Nonstop2h 40m
Thu 9/2410:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/2411:02 am -
1 stop5h 57m
Mon 9/2810:00 am -
Nonstop2h 43m
Deal found 8/20![Frontier logo]()
$185
This Super.com deal was found by Cheapflights users on 8/21. 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.
Fri 9/1812:38 pm -
Nonstop2h 40m
Fri 9/2510:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Fri 9/2512:38 pm -
Nonstop2h 40m
Mon 10/510:00 am -
Nonstop2h 43m
Deal found 8/20![Frontier logo]()
$189
This Super.com deal was found by Cheapflights users on 8/21. 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 9/1012:38 pm -
Nonstop2h 40m
Mon 9/1410:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$190
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 10/112:38 pm -
Nonstop2h 40m
Sat 10/310:44 pm -
1 stop12h 23m
Deal found 8/21![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:02 pm -
Nonstop2h 33m
Sat 10/3110:55 pm -
1 stop13h 16m
Deal found 8/23![Frontier logo]()
$193
This American Airlines deal was found by Cheapflights users on 8/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:18 am -
1 stop4h 56m
Sat 10/1711:44 am -
1 stop5h 42m
Deal found 8/20![American Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 11/95:00 am -
1 stop6h 25m
Fri 11/131:27 pm -
2 stops12h 17m
Deal found 8/20![United Airlines logo]()
$302
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 August 25, 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 August 25, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Fri 10/304:25 pm -
Nonstop2h 29m
Mon 11/27:15 pm -
Nonstop2h 58m
Deal found 8/21![United Airlines logo]()
$268
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:00 am -
1 stop8h 05m
Sat 10/312:30 pm -
2 stops10h 10m
Deal found 8/21![Southwest logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 8/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:13 am -
1 stop9h 13m
Fri 10/28:06 pm -
1 stop14h 25m
Deal found 8/23![Alaska Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 8/23. 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.
Thu 10/155:33 am -
1 stop5h 57m
Sat 10/171:15 pm -
1 stop3h 55m
Deal found 8/23![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 10/236:55 pm -
Nonstop2h 34m
Mon 10/267:15 pm -
Nonstop2h 58m
Deal found 8/20![United Airlines logo]()
$268
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2010:55 am -
2 stops7h 15m
Sat 2/2711:45 am -
2 stops10h 25m
Deal found 8/21![Southwest logo]()
$300
This Alaska Airlines deal was found by Cheapflights users on 8/22. 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.
Fri 10/29:13 am -
1 stop25h 19m
Sun 10/49:45 am -
1 stop24h 46m
Deal found 8/22![Alaska Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 8/23. 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 1/3012:40 pm -
1 stop6h 53m
Thu 2/41:29 pm -
1 stop5h 09m
Deal found 8/23![United Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 8/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:10 pm -
1 stop3h 47m
Tue 9/227:41 am -
2 stops9h 56m
Deal found 8/24![Delta logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 8/22. 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 10/1010:49 am -
Nonstop2h 43m
Mon 10/126:59 pm -
1 stop15h 32m
Deal found 8/22![Alaska Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 8/23. 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 1/306:20 am -
2 stops10h 15m
Thu 2/49:00 am -
1 stop8h 25m
Deal found 8/23![Southwest logo]()
$314
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 1/75:35 am -
2 stops9h 38m
Wed 1/137:30 am -
2 stops12h 01m
Deal found 8/21![United Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 8/21. 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 1/711:35 am -
1 stop6h 45m
Wed 1/139:00 am -
1 stop8h 25m
Deal found 8/21![Southwest logo]()
$315
This Alaska Airlines deal was found by Cheapflights users on 8/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:30 am -
1 stop6h 31m
Mon 11/21:55 pm -
2 stops7h 52m
Deal found 8/24![Alaska Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Fri 1/85:15 am -
1 stop6h 10m
Wed 1/131:15 pm -
1 stop5h 23m
Deal found 8/21![United Airlines logo]()
$306
This Southwest deal was found by Cheapflights users on 8/20. 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.
Sun 9/276:25 am -
1 stop5h 05m
Tue 9/299:00 am -
2 stops7h 25m
Deal found 8/20![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 8/20. 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.
Tue 10/65:33 am -
1 stop5h 57m
Tue 10/131:15 pm -
1 stop3h 55m
Deal found 8/20![Delta logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 8/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:30 pm -
Nonstop2h 45m
Sun 10/117:53 am -
Nonstop2h 49m
Deal found 8/23![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 8/21. 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 1/65:15 am -
1 stop4h 30m
Wed 1/131:15 pm -
2 stops12h 39m
Deal found 8/21![United Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:20 am -
2 stops7h 20m
Fri 11/138:20 am -
2 stops12h 15m
Deal found 8/20![Southwest logo]()
$333
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Thu 11/55:00 am -
1 stop6h 33m
Mon 11/91:35 pm -
1 stop5h 34m
Deal found 8/24![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:45 am -
1 stop7h 30m
Sun 9/135:30 am -
1 stop6h 35m
Deal found 8/22![Southwest logo]()
$337
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/18:45 am -
Nonstop2h 34m
Sun 12/67:45 am -
1 stop5h 40m
Deal found 8/20![United Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 8/20. 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.
Fri 9/115:45 am -
1 stop7h 30m
Sat 9/267:00 am -
1 stop4h 55m
Deal found 8/20![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 8/23. 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.
Thu 9/171:49 pm -
1 stop5h 31m
Sat 9/1912:02 pm -
1 stop5h 35m
Deal found 8/23![Delta logo]()
$519
This United Airlines deal was found by Cheapflights users on 8/23. 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 10/105:00 am -
1 stop6h 27m
Tue 10/135:30 am -
1 stop5h 06m
Deal found 8/23![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 8/20. 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.
Fri 9/1812:40 pm -
1 stop8h 15m
Thu 9/246:45 pm -
1 stop5h 25m
Deal found 8/20![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 8/23. 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.
Fri 9/181:49 pm -
1 stop5h 31m
Mon 9/2112:02 pm -
1 stop8h 22m
Deal found 8/23![Delta logo]()
$519
This Alaska Airlines deal was found by Cheapflights users on 8/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/310:36 am -
1 stop6h 10m
Sun 2/76:26 pm -
2 stops20h 03m
Deal found 8/23![Alaska Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Sun 12/64:05 pm -
1 stop4h 58m
Sat 12/121:40 pm -
1 stop4h 58m
Deal found 8/24![United Airlines logo]()
$337
Last-minute flights from Portland to ColoradoDiscover last-minute flight deals from Portland to Colorado. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Colorado. Data last updated August 25, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/21. 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 9/1012:38 pm -
Nonstop2h 40m
Mon 9/1410:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 8/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:38 pm -
Nonstop2h 40m
Fri 9/1110:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$196
This Expedia deal was found by Cheapflights users on 8/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:38 pm -
Nonstop2h 40m
Mon 9/1410:00 am -
Nonstop2h 43m
Deal found 8/22![Frontier logo]()
$194
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Fri 9/115:00 am -
1 stop4h 51m
Thu 9/175:15 am -
1 stop5h 17m
Deal found 8/21![United Airlines logo]()
$318
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 9/1712:38 pm -
Nonstop2h 40m
Thu 9/2410:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$181
This Delta deal was found by Cheapflights users on 8/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:10 pm -
1 stop3h 47m
Tue 9/227:41 am -
1 stop5h 34m
Deal found 8/24![Delta logo]()
$319
This Super.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:38 pm -
Nonstop2h 40m
Thu 9/2410:00 am -
Nonstop2h 43m
Deal found 8/20![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 8/21. 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.
Fri 9/1812:38 pm -
Nonstop2h 40m
Fri 9/2510:00 am -
Nonstop2h 43m
Deal found 8/21![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/2411:02 am -
1 stop5h 57m
Mon 9/2810:00 am -
Nonstop2h 43m
Deal found 8/20![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Fri 9/2512:38 pm -
Nonstop2h 40m
Mon 10/510:00 am -
Nonstop2h 43m
Deal found 8/20![Frontier logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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.
Fri 9/2512:38 pm -
Nonstop2h 40m
Wed 9/3010:50 pm -
1 stop13h 46m
Deal found 8/21![Frontier logo]()
$202
This Orbitz deal was found by Cheapflights users on 8/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:38 pm -
Nonstop2h 40m
Thu 10/110:00 am -
Nonstop2h 43m
Deal found 8/21![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 August 25, 2026.
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 9/1711:02 am -
1 stop5h 57m
Deal found 8/21![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Fri 9/1812:38 pm -
Nonstop2h 40m
Deal found 8/22![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:38 pm -
Nonstop2h 40m
Deal found 8/21![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/2412:38 pm -
Nonstop2h 40m
Deal found 8/22![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 10/2912:31 pm -
1 stop10h 18m
Deal found 8/21![Frontier logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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.
Fri 9/1111:02 am -
1 stop5h 57m
Deal found 8/21![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” 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 10/1911:06 am -
1 stop21h 24m
Deal found 8/25![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:25 pm -
1 stop6h 25m
Deal found 8/21![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 8/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:38 pm -
Nonstop2h 40m
Deal found 8/24![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:06 am -
1 stop27h 05m
Deal found 8/23![Frontier logo]()
$123
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Fri 9/1110:50 am -
1 stop6h 03m
Deal found 8/24![United Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sat 9/1212:24 pm -
1 stop23h 06m
Deal found 8/20![Multiple Airlines logo]()
$191
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 August 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $176 (Cheapflightsfares) |
One-way from | $107 (Cheapflightsfares) |
Popular in | June |
Cheapest in | January |
Average price | $264 |
Good round-trip deal | $308 or less |
Good one-way deal | $173 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 August 25, 2026.
Use the filters below to find and compare flights from Portland to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Fri 10/30
4:25 pm-7:54 pm
Nonstop2h 29m
Denver Intl
Mon 11/2
7:15 pm-9:13 pm
Nonstop2h 58m
$268
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Fri 10/23
6:55 pm-10:29 pm
Nonstop2h 34m
Denver Intl
Mon 10/26
7:15 pm-9:13 pm
Nonstop2h 58m
$268
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Tue 9/29
8:00 am-5:05 pm
1 stop8h 05m
Denver Intl
Sat 10/3
12:30 pm-9:40 pm
2 stops10h 10m
$282
PortlandHayden
PDX Portland - HDN Hayden Yampa Valley
PDXHDN
Portland
Sat 1/30
12:40 pm-8:33 pm
1 stop6h 53m
Hayden Yampa Valley
Thu 2/4
1:29 pm-5:38 pm
1 stop5h 09m
$290
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Wed 9/30
9:13 am-7:26 pm
1 stop9h 13m
Denver Intl
Fri 10/2
8:06 pm-9:31 am
1 stop14h 25m
$293
PortlandHayden
PDX Portland - HDN Hayden Yampa Valley
PDXHDN
Portland
Thu 1/7
5:35 am-4:13 pm
2 stops9h 38m
Hayden Yampa Valley
Wed 1/13
7:30 am-6:31 pm
2 stops12h 01m
$295
PortlandHayden
PDX Portland - HDN Hayden Yampa Valley
PDXHDN
Portland
Sat 2/20
10:55 am-7:10 pm
2 stops7h 15m
Hayden Yampa Valley
Sat 2/27
11:45 am-9:10 pm
2 stops10h 25m
$300
PortlandDurango
PDX Portland - DRO Durango La Plata County
PDXDRO
Portland
Fri 1/8
5:15 am-12:25 pm
1 stop6h 10m
Durango La Plata County
Wed 1/13
1:15 pm-5:38 pm
1 stop5h 23m
$306
PortlandDurango
PDX Portland - DRO Durango La Plata County
PDXDRO
Portland
Wed 1/6
5:15 am-10:45 am
1 stop4h 30m
Durango La Plata County
Wed 1/13
1:15 pm-12:54 am
2 stops12h 39m
$308
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Fri 10/2
9:13 am-11:32 am
1 stop25h 19m
Denver Intl
Sun 10/4
9:45 am-9:31 am
1 stop24h 46m
$310
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-DRO
PDX-HDN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portland to Colorado
PDX-USCO
PDX-DEN
PDX-COS
PDX-GJT
PDX-DRO
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 $232). 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 August 25, 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 15% 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 August 25, 2026.
The most flights from PDX to USCO are scheduled on a Monday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 $186 and $335 in October.The cheapest round-trip price found within the last 5 days was $176 on Frontier (Oct 8-Oct 11).
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 August 22, 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 August 25, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta 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.
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
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.
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Alternative routes for Portland to Colorado
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Complete your trip
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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 August 25, 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 7,457,451 searches. Data last updated August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$187 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$308 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$126 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$280 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$401 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$149 | Average$395 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$177 | Average$255 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$264 | Average$428 | FlexibilityNo cancel fee | On-time71% |