$79+ Cheap flights from Washington 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Oct 1 — Oct 81
Round-trip
1 adult, Economy
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Find cheap flights from Washington 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 Washington to Colorado
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Cheapest flights from Washington to ColoradoExplore the most affordable flight options available from Washington to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.
Explore the most affordable flight options available from Washington to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.
This CheapOair deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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.
Tue 9/294:27 pm -
Nonstop2h 54m
Tue 10/61:07 pm -
Nonstop3h 01m
Deal found 8/29![Frontier logo]()
$138
This eDestinos deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:27 pm -
Nonstop2h 54m
Sat 9/261:07 pm -
Nonstop3h 01m
Deal found 8/30![Frontier logo]()
$139
This deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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.
Mon 10/124:27 pm -
Nonstop2h 50m
Fri 10/161:07 pm -
Nonstop3h 05m
Deal found 8/28![Frontier logo]()
$147
This deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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.
Wed 9/304:27 pm -
Nonstop2h 54m
Wed 10/71:07 pm -
Nonstop3h 01m
Deal found 8/30![Frontier logo]()
$152
This Flightnetwork deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Tue 9/224:27 pm -
Nonstop2h 54m
Mon 9/281:07 pm -
Nonstop3h 01m
Deal found 8/31![Frontier logo]()
$155
This Cheapflightsfares deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/224:27 pm -
Nonstop2h 54m
Thu 10/11:07 pm -
Nonstop3h 01m
Deal found 8/27![Frontier logo]()
$156
This deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Sun 9/61:47 pm -
1 stop6h 54m
Thu 9/107:30 am -
1 stop5h 06m
Deal found 8/31![Frontier logo]()
$186
This Frontier deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:35 pm -
Nonstop2h 32m
Sun 12/61:40 pm -
Nonstop3h 00m
Deal found 8/27![Frontier logo]()
$208
This Super.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 8/27![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:49 am -
Nonstop2h 38m
Tue 10/209:00 am -
Nonstop2h 54m
Deal found 8/31![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/911:06 am -
1 stop21h 24m
Tue 10/139:00 am -
Nonstop2h 54m
Deal found 8/27![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/811:06 am -
1 stop5h 55m
Tue 10/139:00 am -
Nonstop2h 54m
Deal found 8/31![Frontier logo]()
$233
Best flights from Washington to ColoradoDiscover carefully curated flight deals from Washington to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
Discover carefully curated flight deals from Washington to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
This Southwest deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/225:45 am -
2 stops8h 25m
Wed 9/236:00 pm -
1 stop5h 10m
Deal found 8/27![Southwest logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/2210:30 am -
1 stop6h 31m
Sun 10/2512:31 pm -
1 stop22h 00m
Deal found 8/27![Alaska Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 11/78:00 pm -
Nonstop2h 55m
Tue 11/106:35 pm -
Nonstop3h 07m
Deal found 8/29![Delta logo]()
$287
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/176:15 pm -
Nonstop2h 44m
Tue 9/227:30 pm -
Nonstop3h 01m
Deal found 8/27![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 11/92:35 pm -
2 stops8h 05m
Wed 11/116:05 am -
2 stops8h 25m
Deal found 8/27![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 -
1 stop6h 27m
Tue 10/2711:34 am -
2 stops7h 52m
Deal found 8/31![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/712:30 pm -
2 stops8h 52m
Wed 10/146:07 pm -
1 stop4h 58m
Deal found 8/28![Delta logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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.
Mon 11/25:52 pm -
1 stop18h 05m
Mon 11/91:55 pm -
1 stop6h 02m
Deal found 8/29![Alaska Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/302:45 pm -
Nonstop2h 10m
Sat 10/3111:10 am -
2 stops7h 25m
Deal found 8/27![Southwest logo]()
$288
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 11/108:30 am -
1 stop6h 54m
Wed 11/115:10 pm -
1 stop7h 05m
Deal found 8/29![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/1712:30 pm -
2 stops8h 52m
Tue 10/208:17 am -
2 stops9h 28m
Deal found 8/31![Delta logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/1712:42 pm -
1 stop4h 43m
Tue 10/207:53 am -
1 stop5h 09m
Deal found 8/28![Alaska Airlines logo]()
$307
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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
Wed 10/146:03 pm -
1 stop5h 56m
Deal found 8/28![United Airlines logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/612:42 pm -
1 stop4h 43m
Tue 10/137:53 am -
1 stop5h 09m
Deal found 8/29![Alaska Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/2610:50 am -
1 stop5h 40m
Sat 10/38:45 am -
2 stops7h 50m
Deal found 8/30![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/163:30 pm -
1 stop7h 25m
Mon 10/196:00 am -
1 stop7h 02m
Deal found 8/31![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/2012:42 pm -
1 stop4h 43m
Wed 10/217:53 am -
1 stop5h 09m
Deal found 8/27![Alaska Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/218:55 am -
2 stops9h 30m
Sat 10/244:15 pm -
2 stops7h 10m
Deal found 8/28![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/295:00 am -
1 stop4h 51m
Tue 10/65:15 am -
1 stop5h 46m
Deal found 8/27![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/265:10 pm -
1 stop3h 47m
Sat 10/311:33 am -
2 stops10h 14m
Deal found 8/30![Delta logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/162:30 pm -
Nonstop2h 45m
Sat 10/249:45 am -
1 stop8h 06m
Deal found 8/30![Alaska Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:15 am -
1 stop7h 10m
Mon 11/237:15 pm -
2 stops7h 00m
Deal found 9/1![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 2/286:00 am -
1 stop5h 20m
Sat 3/61:11 pm -
2 stops6h 52m
Deal found 8/31![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/1512:45 pm -
Nonstop2h 40m
Sat 10/171:25 pm -
Nonstop2h 40m
Deal found 8/31![United Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 9/2212:21 pm -
1 stop5h 11m
Wed 9/238:08 am -
1 stop4h 33m
Deal found 8/29![Alaska Airlines logo]()
$312
This Southwest deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/1711:40 am -
2 stops10h 00m
Mon 10/191:45 pm -
2 stops8h 15m
Deal found 8/29![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/95:15 pm -
1 stop4h 07m
Mon 10/128:17 am -
1 stop4h 46m
Deal found 8/27![Delta logo]()
$337
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 12/245:00 am -
Nonstop2h 34m
Sun 12/277:40 am -
Nonstop3h 00m
Deal found 8/28![United Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 9/2212:21 pm -
1 stop5h 11m
Sat 9/268:08 am -
1 stop4h 33m
Deal found 8/28![Alaska Airlines logo]()
$312
This Southwest deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 10/317:55 am -
2 stops7h 25m
Mon 11/26:30 pm -
2 stops7h 45m
Deal found 8/29![Southwest logo]()
$322
Last-minute flights from Washington to ColoradoDiscover last-minute flight deals from Washington to Colorado. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Colorado. Data last updated September 1, 2026 and is based on user searches.
This deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Sun 9/61:47 pm -
1 stop6h 54m
Thu 9/107:30 am -
1 stop5h 06m
Deal found 8/31![Frontier logo]()
$186
This Super.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/1712:38 pm -
Nonstop2h 40m
Mon 9/2110:00 am -
Nonstop2h 43m
Deal found 8/27![Frontier logo]()
$245
This Frontier deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/1812:39 pm -
1 stop10h 05m
Sun 9/2010:00 am -
Nonstop2h 43m
Deal found 8/30![Frontier logo]()
$234
This eDestinos deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:27 pm -
Nonstop2h 54m
Sat 9/261:07 pm -
Nonstop3h 01m
Deal found 8/30![Frontier logo]()
$139
This Flightnetwork deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Tue 9/224:27 pm -
Nonstop2h 54m
Mon 9/281:07 pm -
Nonstop3h 01m
Deal found 8/31![Frontier logo]()
$155
This Cheapflightsfares deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 9/224:27 pm -
Nonstop2h 54m
Thu 10/11:07 pm -
Nonstop3h 01m
Deal found 8/27![Frontier logo]()
$156
This Priceline deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:38 pm -
Nonstop2h 40m
Thu 10/110:00 am -
Nonstop2h 43m
Deal found 8/27![Frontier logo]()
$248
This Super.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 9/2512:38 pm -
Nonstop2h 40m
Sun 9/2710:00 am -
Nonstop2h 43m
Deal found 8/28![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:02 am -
1 stop21h 30m
Wed 9/3010:44 pm -
1 stop12h 23m
Deal found 8/27![Frontier logo]()
$241
This CheapOair deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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.
Tue 9/294:27 pm -
Nonstop2h 54m
Tue 10/61:07 pm -
Nonstop3h 01m
Deal found 8/29![Frontier logo]()
$138
This deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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.
Wed 9/304:27 pm -
Nonstop2h 54m
Wed 10/71:07 pm -
Nonstop3h 01m
Deal found 8/30![Frontier logo]()
$152
This deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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.
Mon 10/124:27 pm -
Nonstop2h 50m
Fri 10/161:07 pm -
Nonstop3h 05m
Deal found 8/28![Frontier logo]()
$147
One-way flights from Washington to ColoradoSearch for one-way flight options from Washington to Colorado. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
Search for one-way flight options from Washington to Colorado. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
This Super.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:27 pm -
Nonstop2h 54m
Deal found 9/1![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/268:00 pm -
1 stop20h 35m
Deal found 8/28![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/304:27 pm -
Nonstop2h 48m
Deal found 8/31![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/208:00 pm -
1 stop20h 34m
Deal found 8/28![Frontier logo]()
$85
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:27 pm -
Nonstop2h 54m
Deal found 9/1![Frontier logo]()
$86
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 9/294:27 pm -
Nonstop2h 54m
Deal found 8/28![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” 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 10/148:00 pm -
1 stop12h 30m
Deal found 8/27![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:27 pm -
Nonstop2h 48m
Deal found 9/1![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/14:27 pm -
Nonstop2h 54m
Deal found 8/28![Frontier logo]()
$93
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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.
Sun 10/2511:49 am -
Nonstop2h 38m
Deal found 8/28![Frontier logo]()
$102
This Frontier deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:35 pm -
Nonstop2h 32m
Deal found 8/31![Frontier logo]()
$104
This eDestinos deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:13 am -
1 stop23h 46m
Deal found 8/28![Multiple Airlines logo]()
$116
Find flight deals from Washington to Colorado
Keep the following information in mind while searching for Washington to Colorado flight deals. Data was last updated September 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $138 (CheapOair) |
One-way from | $79 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $258 |
Good round-trip deal | $285 or less |
Good one-way deal | $183 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 1, 2026.
Use the filters below to find and compare flights from Washington to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneDenver
GEG Spokane - DEN Denver Intl
GEGDEN
Spokane
Tue 9/22
5:45 am-3:10 pm
2 stops8h 25m
Denver Intl
Wed 9/23
6:00 pm-10:10 pm
1 stop5h 10m
$282
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Thu 10/22
10:30 am-6:01 pm
1 stop6h 31m
Denver Intl
Sun 10/25
12:31 pm-9:31 am
1 stop22h 00m
$283
SeattleDenver
SEA Seattle/Tacoma Intl - DEN Denver Intl
SEADEN
Seattle/Tacoma Intl
Sat 11/7
8:00 pm-11:55 pm
Nonstop2h 55m
Denver Intl
Tue 11/10
6:35 pm-8:42 pm
Nonstop3h 07m
$287
SpokaneDenver
GEG Spokane - DEN Denver Intl
GEGDEN
Spokane
Mon 11/9
2:35 pm-11:40 pm
2 stops8h 05m
Denver Intl
Wed 11/11
6:05 am-1:30 pm
2 stops8h 25m
$287
SpokaneDenver
GEG Spokane - DEN Denver Intl
GEGDEN
Spokane
Fri 10/30
2:45 pm-5:55 pm
Nonstop2h 10m
Denver Intl
Sat 10/31
11:10 am-5:35 pm
2 stops7h 25m
$288
SeattleDenver
SEA Seattle/Tacoma Intl - DEN Denver Intl
SEADEN
Seattle/Tacoma Intl
Thu 9/17
6:15 pm-9:59 pm
Nonstop2h 44m
Denver Intl
Tue 9/22
7:30 pm-9:31 pm
Nonstop3h 01m
$292
SeattleColorado Springs
SEA Seattle/Tacoma Intl - COS Colorado Springs
SEACOS
Seattle/Tacoma Intl
Sat 10/24
5:00 am-12:27 pm
1 stop6h 27m
Colorado Springs
Tue 10/27
11:34 am-6:26 pm
2 stops7h 52m
$292
SeattleColorado Springs
SEA Seattle/Tacoma Intl - COS Colorado Springs
SEACOS
Seattle/Tacoma Intl
Wed 10/7
12:30 pm-10:22 pm
2 stops8h 52m
Colorado Springs
Wed 10/14
6:07 pm-10:05 pm
1 stop4h 58m
$292
PortlandDenver
PDX Portland - DEN Denver Intl
PDXDEN
Portland
Mon 11/2
5:52 pm-12:57 pm
1 stop18h 05m
Denver Intl
Mon 11/9
1:55 pm-6:57 pm
1 stop6h 02m
$293
SeattleColorado Springs
SEA Seattle/Tacoma Intl - COS Colorado Springs
SEACOS
Seattle/Tacoma Intl
Tue 11/10
8:30 am-4:24 pm
1 stop6h 54m
Colorado Springs
Wed 11/11
5:10 pm-11:15 pm
1 stop7h 05m
$297
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Washington with our price prediction graph.
GEG-DEN
PDX-DEN
SEA-DEN
SEA-COS
PAE-DEN
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 Washington to Colorado
USWA-USCO
GEG-DEN
PDX-DEN
SEA-DEN
SEA-COS
What is the cheapest month to book a flight from State of Washington to Colorado?
Currently, January is the cheapest month in which you can book a flight from State of Washington to Colorado (average of $207). Flying from State of Washington to Colorado in June is currently the most expensive (average of $358). 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 WA to CO?
Find hourly flight availability from Washington 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 1, 2026.
When flying from State of Washington to Colorado, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 10% versus a flight in the morning.
Weekly flight availability from State of Washington to Colorado
Explore weekly flight availability from Washington 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 1, 2026.
The most flights from USWA to USCO are scheduled on a Monday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).
How much does it cost to fly round-trip from State of Washington to Colorado?
Airfare is below average for this route at the moment.
State of Washington to Colorado flights typically cost between $164 and $336 in September.The cheapest round-trip price found within the last 5 days was $138 on Frontier (Sep 29-Oct 6).
How far ahead should I book a flight from State of Washington to Colorado?
The best time to book flights from State of Washington to Colorado is 73 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 State of Washington to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Washington to Colorado. Price data was last updated on August 29, 2026.
Travelers seeking maximum savings on their State of Washington to Colorado flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday afternoons 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 1, 2026.
Read through reviews of airlines operating flights from Washington to Colorado, such as Southwest,Alaska Airlines, andDelta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
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 Washington 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 Washington 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 Washington to Colorado by cabin class
Find flights from Washington to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Colorado flights
Browse other Washington and Colorado flight options. Last updated on September 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Colorado
Find the right flight back to Washington after your stay in Colorado
Washington to Colorado flights
Consider these flights traveling from Washington to Colorado.
Top 8 airlines flying from Washington to Colorado
Discover the top 8 airlines that operate flights from Washington 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$165 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$78 | Average$250 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$97 | Average$311 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$113 | Average$370 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$115 | Average$407 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$138 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$200 | Average$328 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$274 | Average$518 | FlexibilityNo cancel fee | On-time71% |