$63+ Cheap flights from Washington to Denver (DEN)
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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
May 15 — May 221
Round-trip
1 adult, Economy
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Cheapest flights from Washington to DenverExplore the most affordable flight options available from Washington to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
Explore the most affordable flight options available from Washington to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
This Super.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Sun 5/107:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/14![Frontier logo]()
$97
This Super.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Sun 5/38:24 am
DEN
- PDX
Nonstop2h 56m
Frontier
Deal found 4/11![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 5/47:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Wed 5/67:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/13![Frontier logo]()
$98
This Cheapflightsfares deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Sun 5/248:00 am
DEN
- SEA
Nonstop3h 06m
Frontier
Deal found 4/13![Frontier logo]()
$102
This Frontier deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Sun 5/177:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Sun 5/248:00 am
DEN
- SEA
Nonstop3h 06m
Frontier
Deal found 4/13![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Sat 5/97:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/12![Frontier logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/77:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Sun 5/107:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/14![Frontier logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/14![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 5/117:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Thu 5/147:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/14![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:35 pm
PDX
- DEN
Nonstop2h 48m
Frontier
Sun 6/73:00 pm
DEN
- PDX
Nonstop2h 46m
Frontier
Deal found 4/10![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Sun 5/248:00 am
DEN
- SEA
Nonstop3h 06m
Frontier
Deal found 4/13![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Wed 5/67:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/14![Frontier logo]()
$112
Best flights from Washington to DenverDiscover carefully curated flight deals from Washington to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
Discover carefully curated flight deals from Washington to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:05 pm
PDX
- DEN
Nonstop2h 39m
United Airlines
Sat 5/167:45 am
DEN
- PDX
1 stop8h 12m
United Airlines
Deal found 4/12![United Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 6/41:21 pm
BLI
- DEN
1 stop13h 04m
Multiple Airlines
Mon 6/84:07 pm
DEN
- BLI
1 stop6h 47m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$234
This Alaska Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:44 pm
SEA
- DEN
1 stop7h 15m
Alaska Airlines
Wed 5/66:00 am
DEN
- SEA
Nonstop3h 03m
Alaska Airlines
Deal found 4/10![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/135:51 pm
PDX
- DEN
1 stop5h 01m
Delta
Sat 5/166:05 am
DEN
- PDX
1 stop6h 34m
Delta
Deal found 4/12![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” 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 5/211:15 am
SEA
- DEN
2 stops7h 45m
Southwest
Wed 5/68:35 am
DEN
- SEA
1 stop6h 00m
Southwest
Deal found 4/11![Southwest logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Sun 5/101:17 pm
SEA
- DEN
Nonstop2h 54m
Alaska Airlines
Wed 5/136:40 am
DEN
- SEA
1 stop7h 45m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 7/155:50 pm
PDX
- DEN
1 stop4h 52m
Delta
Wed 7/227:09 pm
DEN
- PDX
1 stop5h 35m
Delta
Deal found 4/14![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 5/185:30 am
SEA
- DEN
Nonstop2h 35m
Southwest
Wed 6/106:55 pm
DEN
- SEA
1 stop5h 15m
Southwest
Deal found 4/13![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:50 pm
PDX
- DEN
1 stop6h 40m
Delta
Mon 8/176:25 pm
DEN
- PDX
1 stop6h 16m
Delta
Deal found 4/11![Delta logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 8/113:59 pm
PSC
- DEN
1 stop4h 41m
Alaska Airlines
Tue 8/188:00 am
DEN
- PSC
1 stop8h 22m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 5/137:50 am
SEA
- DEN
2 stops8h 20m
Southwest
Wed 5/203:35 pm
DEN
- SEA
1 stop8h 20m
Southwest
Deal found 4/15![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:15 pm
PDX
- DEN
Nonstop2h 36m
United Airlines
Mon 6/229:10 pm
DEN
- PDX
Nonstop2h 45m
United Airlines
Deal found 4/10![United Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/95:30 am
SEA
- DEN
1 stop5h 15m
Delta
Sat 5/96:35 pm
DEN
- SEA
Nonstop3h 02m
Delta
Deal found 4/12![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 5/79:40 am
SEA
- DEN
2 stops8h 20m
Southwest
Thu 5/143:50 pm
DEN
- SEA
1 stop7h 45m
Southwest
Deal found 4/13![Southwest logo]()
$302
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/285:00 am
SEA
- DEN
Nonstop2h 43m
United Airlines
Sun 6/287:10 pm
DEN
- SEA
Nonstop3h 00m
United Airlines
Deal found 4/10![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/223:30 pm
PSC
- DEN
1 stop7h 22m
Delta
Mon 5/255:30 am
DEN
- PSC
1 stop4h 49m
Delta
Deal found 4/12![Delta logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:27 am
GEG
- DEN
1 stop27h 39m
Alaska Airlines
Fri 5/158:00 am
DEN
- GEG
1 stop4h 52m
Alaska Airlines
Deal found 4/11![Alaska Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:00 am
BLI
- DEN
2 stops14h 58m
Multiple Airlines
Sun 5/1710:33 am
DEN
- BLI
1 stop11h 37m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 7/285:00 am
PDX
- DEN
Nonstop2h 31m
United Airlines
Tue 7/283:47 pm
DEN
- PDX
1 stop8h 02m
United Airlines
Deal found 4/14![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/67:50 am
SEA
- DEN
2 stops8h 20m
Southwest
Sun 5/108:25 am
DEN
- SEA
1 stop6h 15m
Southwest
Deal found 4/12![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/233:36 pm
PSC
- DEN
1 stop7h 06m
Delta
Sun 7/266:30 am
DEN
- PSC
1 stop6h 15m
Delta
Deal found 4/13![Delta logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 8/512:33 pm
PAE
- DEN
1 stop4h 36m
Alaska Airlines
Tue 8/118:00 am
DEN
- PAE
1 stop4h 53m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$335
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 7/75:14 am
PSC
- DEN
Nonstop2h 22m
United Airlines
Sat 7/117:24 pm
DEN
- PSC
Nonstop2h 28m
United Airlines
Deal found 4/15![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 7/83:36 pm
PSC
- DEN
1 stop7h 06m
Delta
Sat 7/1112:57 pm
DEN
- PSC
1 stop7h 01m
Delta
Deal found 4/15![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:00 pm
PDX
- DEN
Nonstop2h 30m
Southwest
Mon 9/2110:25 am
DEN
- PDX
Nonstop2h 40m
Southwest
Deal found 4/15![Southwest logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
PDX
- DEN
2 stops10h 25m
Alaska Airlines
Sun 5/106:00 am
DEN
- PDX
1 stop7h 52m
Alaska Airlines
Deal found 4/10![Alaska Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:00 pm
PSC
- DEN
1 stop4h 31m
Delta
Tue 8/186:45 am
DEN
- PSC
1 stop6h 12m
Delta
Deal found 4/13![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 5/66:30 am
PDX
- DEN
2 stops7h 35m
Southwest
Mon 5/114:25 pm
DEN
- PDX
2 stops7h 15m
Southwest
Deal found 4/13![Southwest logo]()
$332
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 6/241:41 pm
GEG
- DEN
Nonstop2h 16m
United Airlines
Sat 6/271:46 pm
DEN
- GEG
Nonstop2h 26m
United Airlines
Deal found 4/14![United Airlines logo]()
$366
This Trip.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Mon 4/278:00 am
BLI
- DEN
2 stops25h 50m
Multiple Airlines
Sun 5/108:41 am
DEN
- BLI
2 stops13h 29m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$494
Last-minute flights from Washington to DenverDiscover last-minute flight deals from Washington to Denver. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Denver. Data last updated April 15, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 4/2112:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2810:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/14![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 4/217:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Wed 4/297:15 am
DEN
- SEA
Nonstop3h 12m
Frontier
Deal found 4/15![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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 4/2112:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Wed 4/2210:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/15![Frontier logo]()
$156
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Wed 4/227:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Wed 5/67:50 am
DEN
- SEA
Nonstop2h 59m
Frontier
Deal found 4/14![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Wed 4/227:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Wed 4/297:15 am
DEN
- SEA
Nonstop3h 12m
Frontier
Deal found 4/14![Frontier logo]()
$137
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Wed 4/227:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Tue 4/287:15 am
DEN
- SEA
Nonstop3h 12m
Frontier
Deal found 4/14![Frontier logo]()
$152
This Frontier deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Sat 5/27:15 am
DEN
- SEA
Nonstop3h 12m
Frontier
Deal found 4/15![Frontier logo]()
$163
This Super.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Sun 5/37:15 am
DEN
- SEA
Nonstop3h 12m
Frontier
Deal found 4/10![Frontier logo]()
$157
This Cheapflightsfares deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Mon 5/412:51 pm
DEN
- SEA
Nonstop3h 14m
Frontier
Deal found 4/10![Frontier logo]()
$147
This Frontier deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:27 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Tue 4/2810:00 am
DEN
- PDX
Nonstop2h 52m
Frontier
Deal found 4/12![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/39:19 pm
GEG
- DEN
1 stop26h 00m
Multiple Airlines
Wed 5/610:29 pm
DEN
- GEG
1 stop23h 00m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/39:19 pm
GEG
- DEN
1 stop26h 00m
Multiple Airlines
Wed 5/137:01 pm
DEN
- GEG
1 stop26h 28m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$157
One-way flights from Washington to DenverSearch for one-way flight options from Washington to Denver. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
Search for one-way flight options from Washington to Denver. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:12 pm
SEA
- DEN
1 stop6h 46m
Frontier
Deal found 4/10![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:06 am
SEA
- DEN
1 stop21h 58m
Frontier
Deal found 4/13![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:20 pm
SEA
- DEN
1 stop6h 38m
Frontier
Deal found 4/15![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:12 pm
SEA
- DEN
Nonstop2h 47m
Frontier
Deal found 4/14![Frontier logo]()
$68
This deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Tue 6/307:41 pm
SEA
- DEN
Nonstop2h 55m
Frontier
Deal found 4/12![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 5/217:50 pm
SEA
- DEN
Nonstop3h 04m
Frontier
Deal found 4/13![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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 5/109:46 pm
PDX
- DEN
1 stop28h 39m
Frontier
Deal found 4/12![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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 7/47:41 pm
SEA
- DEN
Nonstop2h 55m
Frontier
Deal found 4/13![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:31 pm
PDX
- DEN
1 stop15h 46m
Frontier
Deal found 4/11![Frontier logo]()
$82
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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 6/167:41 pm
SEA
- DEN
Nonstop2h 55m
Frontier
Deal found 4/14![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:38 pm
PDX
- DEN
Nonstop2h 40m
Frontier
Deal found 4/14![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1012:28 pm
GEG
- DEN
Nonstop2h 35m
Frontier
Deal found 4/14![Frontier logo]()
$84
Find flight deals from Washington to Denver
Keep the following information in mind while searching for Washington to Denver flight deals. Data was last updated April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $97 (Super.com) |
One-way from | $63 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $236 |
Good round-trip deal | $253 or less |
Good one-way deal | $155 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2026.
Use the filters below to find and compare flights from Washington to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 5/13
7:05 pm-10:44 pm
Nonstop2h 39m
Denver Intl
Sat 5/16
7:45 am-2:57 pm
1 stop8h 12m
$227
BellinghamDenver
BLI - DEN
BLIDEN
Bellingham
Thu 6/4
1:21 pm-3:25 am
1 stop13h 04m
Denver Intl
Mon 6/8
4:07 pm-9:54 pm
1 stop6h 47m
$234
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Tue 5/5
3:44 pm-11:59 pm
1 stop7h 15m
Denver Intl
Wed 5/6
6:00 am-8:03 am
Nonstop3h 03m
$237
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 5/13
5:51 pm-11:52 pm
1 stop5h 01m
Denver Intl
Sat 5/16
6:05 am-11:39 am
1 stop6h 34m
$237
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Sun 5/10
1:17 pm-5:11 pm
Nonstop2h 54m
Denver Intl
Wed 5/13
6:40 am-1:25 pm
1 stop7h 45m
$247
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Sat 5/2
11:15 am-8:00 pm
2 stops7h 45m
Denver Intl
Wed 5/6
8:35 am-1:35 pm
1 stop6h 00m
$252
PortlandDenver
PDX - DEN
PDXDEN
Portland
Wed 7/15
5:50 pm-11:42 pm
1 stop4h 52m
Denver Intl
Wed 7/22
7:09 pm-11:44 pm
1 stop5h 35m
$267
PortlandDenver
PDX - DEN
PDXDEN
Portland
Tue 8/11
3:50 pm-11:30 pm
1 stop6h 40m
Denver Intl
Mon 8/17
6:25 pm-11:41 pm
1 stop6h 16m
$267
PascoDenver
PSC - DEN
PSCDEN
Pasco Tri Cities
Tue 8/11
3:59 pm-9:40 pm
1 stop4h 41m
Denver Intl
Tue 8/18
8:00 am-3:22 pm
1 stop8h 22m
$269
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Mon 5/18
5:30 am-9:05 am
Nonstop2h 35m
Denver Intl
Wed 6/10
6:55 pm-11:10 pm
1 stop5h 15m
$272
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Washington with our price prediction graph.
BLI-DEN
SEA-DEN
PDX-DEN
PSC-DEN
GEG-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 Denver
USWA-DEN
BLI-DEN
SEA-DEN
PDX-DEN
PSC-DEN
What is the cheapest month to book a flight from State of Washington to Denver?
Currently, January is the cheapest month in which you can book a flight from State of Washington to Denver (average of $37). Flying from State of Washington to Denver in July is currently the most expensive (average of $101). 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 DEN?
Find hourly flight availability from Washington to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2026.
One of the essential ways to save on airfare from State of Washington to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 7% on airfare.
What is the cheapest day to fly from State of Washington to Denver?
Use this chart to determine the cheapest time to fly round-trip from Washington to Denver. Price data was last updated on April 11, 2026.
Travelers seeking maximum savings on their State of Washington to Denver flight should consider departing on Friday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from State of Washington to Denver
Explore weekly flight availability from Washington to Denver. 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 April 15, 2026.
The most flights from USWA to DEN are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).
How much does it cost to fly round-trip from State of Washington to Denver?
Related info for your journey
Find useful and relevant information for your journey from Washington to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Lakewood
Westminster
Broomfield
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Fort Morgan
Glendale
Evergreen
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Washington to Denver
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Complete your trip
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Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 15, 2026.
Search flights from Washington to Denver by cabin class
Find flights from Washington to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Denver flights
Browse other Washington and Denver flight options. Last updated on April 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington to Denver flights
Consider these flights traveling from Washington to Denver.
Top 6 airlines flying from Washington to Denver
Discover the top 6 airlines that operate flights from Washington to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$156 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$78 | Average$376 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$95 | Average$245 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$110 | Average$361 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$313 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$130 | Average$332 | FlexibilityNo cancel fee | On-time69% |