$92+ Cheap flights from Denver (DEN) to Washington
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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
Aug 15 — Aug 221
Round-trip
1 adult, Economy
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Cheapest flights from Denver to WashingtonExplore the most affordable flight options available from Denver to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2026.
Explore the most affordable flight options available from Denver to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2026.
This Frontier deal was found by Cheapflights users on 7/15. 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.
Thu 8/67:00 am
DEN
- SEA
Nonstop3h 04m
Frontier
Tue 8/118:13 pm
SEA
- DEN
1 stop6h 37m
Frontier
Deal found 7/15![Frontier logo]()
$167
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Fri 7/317:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/15![Frontier logo]()
$168
This Frontier deal was found by Cheapflights users on 7/13. 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.
Tue 8/188:45 am
DEN
- SEA
1 stop11h 53m
Frontier
Sat 8/292:37 pm
SEA
- DEN
Nonstop2h 56m
Frontier
Deal found 7/13![Frontier logo]()
$169
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Wed 7/297:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/14![Frontier logo]()
$170
This Super.com deal was found by Cheapflights users on 7/13. 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 8/87:00 am
DEN
- SEA
Nonstop3h 04m
Frontier
Mon 8/107:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/13![Frontier logo]()
$171
This Cheapflightsfares deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:00 am
DEN
- SEA
1 stop25h 39m
Frontier
Fri 8/211:35 pm
SEA
- DEN
Nonstop2h 59m
Frontier
Deal found 7/16![Frontier logo]()
$172
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 7/287:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Tue 8/48:13 pm
SEA
- DEN
1 stop6h 37m
Frontier
Deal found 7/14![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 7/15. 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.
Sun 9/67:15 am
DEN
- SEA
Nonstop3h 04m
Frontier
Wed 9/99:16 pm
SEA
- DEN
1 stop5h 36m
Frontier
Deal found 7/15![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 7/13. 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.
Fri 8/2110:10 am
DEN
- SEA
Nonstop3h 10m
Frontier
Mon 8/241:35 pm
SEA
- DEN
Nonstop2h 59m
Frontier
Deal found 7/13![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 10/86:23 am
DEN
- SEA
1 stop12h 22m
Frontier
Wed 10/147:41 pm
SEA
- DEN
Nonstop2h 53m
Frontier
Deal found 7/13![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 7/15. 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 10/146:30 am
DEN
- SEA
1 stop12h 56m
Frontier
Tue 10/207:41 pm
SEA
- DEN
Nonstop2h 53m
Frontier
Deal found 7/15![Frontier logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 7/13. 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 8/2810:10 am
DEN
- SEA
Nonstop3h 10m
Frontier
Fri 9/41:35 pm
SEA
- DEN
Nonstop2h 59m
Frontier
Deal found 7/13![Frontier logo]()
$178
Best flights from Denver to WashingtonDiscover carefully curated flight deals from Denver to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 16, 2026.
Discover carefully curated flight deals from Denver to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:55 pm
DEN
- PDX
Nonstop2h 54m
Alaska Airlines
Sat 11/145:49 pm
PDX
- DEN
Nonstop2h 39m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/106:10 am
DEN
- BLI
1 stop16h 44m
Multiple Airlines
Fri 8/143:52 pm
BLI
- DEN
1 stop16h 13m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$230
This Southwest deal was found by Cheapflights users on 7/15. 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.
Mon 9/710:00 pm
DEN
- PDX
Nonstop2h 40m
Southwest
Wed 9/97:50 am
PDX
- DEN
2 stops8h 20m
Southwest
Deal found 7/15![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 7/15. 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 9/91:00 pm
DEN
- PDX
1 stop4h 05m
Delta
Sun 9/135:49 pm
PDX
- DEN
1 stop4h 58m
Delta
Deal found 7/15![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 9/511:15 am
DEN
- PSC
Nonstop2h 39m
United Airlines
Sun 9/135:15 am
PSC
- DEN
Nonstop2h 21m
United Airlines
Deal found 7/16![United Airlines logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:04 pm
DEN
- SEA
Nonstop2h 56m
Alaska Airlines
Sat 9/127:32 pm
SEA
- DEN
Nonstop2h 47m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 7/15. 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.
Thu 8/206:20 am
DEN
- PDX
1 stop6h 25m
Delta
Sun 8/235:30 am
PDX
- DEN
1 stop5h 56m
Delta
Deal found 7/15![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 7/11. 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.
Wed 8/2612:50 pm
DEN
- SEA
2 stops8h 25m
Southwest
Tue 9/17:40 am
SEA
- DEN
1 stop6h 00m
Southwest
Deal found 7/11![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Mon 8/177:14 pm
DEN
- SEA
Nonstop3h 01m
United Airlines
Thu 8/203:54 pm
SEA
- DEN
Nonstop2h 51m
United Airlines
Deal found 7/14![United Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 7/12. 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.
Sat 10/312:30 pm
DEN
- SEA
2 stops10h 05m
Southwest
Wed 10/77:30 am
SEA
- DEN
1 stop6h 45m
Southwest
Deal found 7/12![Southwest logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:02 am
DEN
- PSC
1 stop4h 51m
Alaska Airlines
Wed 8/191:51 pm
PSC
- DEN
1 stop8h 25m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$288
This Southwest deal was found by Cheapflights users on 7/11. 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.
Tue 8/42:40 pm
DEN
- SEA
2 stops7h 35m
Southwest
Wed 8/51:45 pm
SEA
- DEN
1 stop6h 35m
Southwest
Deal found 7/11![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 7/14. 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 8/196:28 pm
DEN
- PSC
1 stop6h 05m
Delta
Thu 8/275:24 pm
PSC
- DEN
1 stop4h 31m
Delta
Deal found 7/14![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 7/12. 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.
Sat 10/314:15 pm
DEN
- SEA
2 stops7h 05m
Southwest
Tue 11/37:40 am
SEA
- DEN
1 stop6h 40m
Southwest
Deal found 7/12![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 7/15. 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.
Sat 9/1910:45 am
DEN
- PSC
1 stop6h 58m
Delta
Sat 9/263:25 pm
PSC
- DEN
1 stop7h 22m
Delta
Deal found 7/15![Delta logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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.
Tue 9/18:08 am
DEN
- PAE
1 stop4h 33m
Alaska Airlines
Sun 11/112:54 pm
PAE
- DEN
1 stop7h 34m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:22 pm
DEN
- GEG
Nonstop2h 24m
United Airlines
Fri 8/215:00 am
GEG
- DEN
Nonstop2h 22m
United Airlines
Deal found 7/13![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 7/15. 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.
Mon 9/284:10 pm
DEN
- PDX
2 stops7h 00m
Southwest
Fri 10/211:35 pm
PDX
- DEN
1 stop7h 20m
Southwest
Deal found 7/15![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 9/56:20 am
DEN
- PSC
1 stop6h 25m
Delta
Sun 9/133:25 pm
PSC
- DEN
1 stop7h 22m
Delta
Deal found 7/16![Delta logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:08 am
DEN
- PAE
1 stop4h 33m
Alaska Airlines
Wed 9/212:21 pm
PAE
- DEN
1 stop5h 11m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Tue 10/277:10 pm
DEN
- PSC
Nonstop2h 38m
United Airlines
Sat 10/315:15 am
PSC
- DEN
Nonstop2h 21m
United Airlines
Deal found 7/12![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 7/15. 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 8/2612:50 pm
DEN
- SEA
2 stops8h 25m
Southwest
Sat 8/299:20 am
SEA
- DEN
2 stops9h 15m
Southwest
Deal found 7/15![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 7/14. 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.
Sat 12/55:40 am
DEN
- PDX
1 stop4h 36m
Delta
Sun 12/65:30 am
PDX
- DEN
1 stop5h 47m
Delta
Deal found 7/14![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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.
Tue 10/2711:58 am
DEN
- PSC
1 stop6h 25m
Alaska Airlines
Sat 10/314:01 pm
PSC
- DEN
1 stop4h 35m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 7/15. 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.
Thu 8/138:55 pm
DEN
- SEA
Nonstop3h 00m
Southwest
Thu 8/203:45 pm
SEA
- DEN
Nonstop2h 45m
Southwest
Deal found 7/15![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Sat 8/1511:15 am
DEN
- GEG
Nonstop2h 20m
United Airlines
Wed 8/191:37 pm
GEG
- DEN
Nonstop2h 19m
United Airlines
Deal found 7/15![United Airlines logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:56 pm
DEN
- ALW
1 stop5h 53m
Alaska Airlines
Wed 11/43:13 pm
ALW
- DEN
1 stop6h 25m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 7/11. 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.
Tue 8/189:05 am
DEN
- SEA
1 stop6h 00m
Southwest
Thu 8/203:25 pm
SEA
- DEN
2 stops7h 20m
Southwest
Deal found 7/11![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 7/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:22 pm
DEN
- GEG
Nonstop2h 24m
United Airlines
Sat 8/295:00 am
GEG
- DEN
Nonstop2h 22m
United Airlines
Deal found 7/11![United Airlines logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:30 pm
DEN
- ALW
1 stop5h 24m
Alaska Airlines
Sun 8/305:00 am
ALW
- DEN
1 stop5h 04m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$329
Last-minute flights from Denver to WashingtonDiscover last-minute flight deals from Denver to Washington. Data last updated July 16, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Washington. Data last updated July 16, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Fri 7/317:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/15![Frontier logo]()
$168
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Wed 7/297:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/14![Frontier logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 7/287:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Tue 8/48:13 pm
SEA
- DEN
1 stop6h 37m
Frontier
Deal found 7/14![Frontier logo]()
$173
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:13 am
DEN
- SEA
Nonstop3h 07m
Frontier
Sat 8/157:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/14![Frontier logo]()
$177
This Super.com deal was found by Cheapflights users on 7/14. 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.
Thu 7/307:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Wed 8/57:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/14![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 8/57:00 am
DEN
- SEA
Nonstop3h 04m
Frontier
Mon 8/108:53 pm
SEA
- DEN
1 stop5h 57m
Frontier
Deal found 7/15![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 7/15. 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.
Thu 8/67:00 am
DEN
- SEA
Nonstop3h 04m
Frontier
Tue 8/118:13 pm
SEA
- DEN
1 stop6h 37m
Frontier
Deal found 7/15![Frontier logo]()
$167
This Super.com deal was found by Cheapflights users on 7/13. 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 8/87:00 am
DEN
- SEA
Nonstop3h 04m
Frontier
Mon 8/107:06 pm
SEA
- DEN
Nonstop2h 52m
Frontier
Deal found 7/13![Frontier logo]()
$171
This Frontier deal was found by Cheapflights users on 7/13. 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.
Tue 8/188:45 am
DEN
- SEA
1 stop11h 53m
Frontier
Sat 8/292:37 pm
SEA
- DEN
Nonstop2h 56m
Frontier
Deal found 7/13![Frontier logo]()
$169
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:00 am
DEN
- SEA
1 stop25h 39m
Frontier
Fri 8/211:35 pm
SEA
- DEN
Nonstop2h 59m
Frontier
Deal found 7/15![Frontier logo]()
$172
This Frontier deal was found by Cheapflights users on 7/13. 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.
Fri 8/2110:10 am
DEN
- SEA
Nonstop3h 10m
Frontier
Mon 8/241:35 pm
SEA
- DEN
Nonstop2h 59m
Frontier
Deal found 7/13![Frontier logo]()
$175
This Cheapflightsfares deal was found by Cheapflights users on 7/13. 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 8/2810:10 am
DEN
- SEA
Nonstop3h 10m
Frontier
Fri 9/41:35 pm
SEA
- DEN
Nonstop2h 59m
Frontier
Deal found 7/13![Frontier logo]()
$178
One-way flights from Denver to WashingtonSearch for one-way flight options from Denver to Washington. Find affordable one-way fares based on user searches. Data last updated July 16, 2026.
Search for one-way flight options from Denver to Washington. Find affordable one-way fares based on user searches. Data last updated July 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Wed 9/98:30 am
DEN
- GEG
1 stop25h 49m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 7/12. 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.
Wed 10/710:30 pm
DEN
- GEG
1 stop18h 04m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Sat 9/127:08 pm
DEN
- GEG
1 stop15h 11m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 9/161:24 pm
DEN
- GEG
1 stop20h 55m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Wed 8/1210:29 pm
DEN
- GEG
1 stop22h 55m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/3110:49 pm
DEN
- SEA
2 stops20h 02m
Frontier
Deal found 7/15![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Tue 9/1510:54 pm
DEN
- GEG
2 stops35h 25m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 10/1410:30 pm
DEN
- GEG
1 stop18h 04m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$111
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:13 am
DEN
- SEA
Nonstop3h 04m
Frontier
Deal found 7/15![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/1312:47 pm
DEN
- BLI
1 stop21h 20m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/1010:54 pm
DEN
- SEA
2 stops19h 51m
Frontier
Deal found 7/15![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/246:00 am
DEN
- SEA
2 stops12h 51m
Frontier
Deal found 7/15![Frontier logo]()
$114
Find flight deals from Denver to Washington
Keep the following information in mind while searching for Denver to Washington flight deals. Data was last updated July 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $167 (Frontier) |
One-way from | $92 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $308 |
Good round-trip deal | $119 or less |
Good one-way deal | $114 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Washington 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 July 16, 2026.
Use the filters below to find and compare flights from Denver to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverPortland
DEN - PDX
DENPDX
Denver Intl
Mon 11/9
2:55 pm-4:49 pm
Nonstop2h 54m
Portland
Sat 11/14
5:49 pm-9:28 pm
Nonstop2h 39m
$227
DenverBellingham
DEN - BLI
DENBLI
Denver Intl
Mon 8/10
6:10 am-9:54 pm
1 stop16h 44m
Bellingham
Fri 8/14
3:52 pm-9:05 am
1 stop16h 13m
$230
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Sat 9/12
3:04 pm-5:00 pm
Nonstop2h 56m
Seattle/Tacoma Intl
Sat 9/12
7:32 pm-11:19 pm
Nonstop2h 47m
$232
DenverPortland
DEN - PDX
DENPDX
Denver Intl
Mon 9/7
10:00 pm-11:40 pm
Nonstop2h 40m
Portland
Wed 9/9
7:50 am-5:10 pm
2 stops8h 20m
$242
DenverPortland
DEN - PDX
DENPDX
Denver Intl
Wed 9/9
1:00 pm-4:05 pm
1 stop4h 05m
Portland
Sun 9/13
5:49 pm-11:47 pm
1 stop4h 58m
$247
DenverPortland
DEN - PDX
DENPDX
Denver Intl
Thu 8/20
6:20 am-11:45 am
1 stop6h 25m
Portland
Sun 8/23
5:30 am-12:26 pm
1 stop5h 56m
$257
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Wed 8/26
12:50 pm-8:15 pm
2 stops8h 25m
Seattle/Tacoma Intl
Tue 9/1
7:40 am-2:40 pm
1 stop6h 00m
$262
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Sat 10/3
12:30 pm-9:35 pm
2 stops10h 05m
Seattle/Tacoma Intl
Wed 10/7
7:30 am-3:15 pm
1 stop6h 45m
$262
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Tue 8/4
2:40 pm-9:15 pm
2 stops7h 35m
Seattle/Tacoma Intl
Wed 8/5
1:45 pm-9:20 pm
1 stop6h 35m
$262
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Sat 10/31
4:15 pm-10:20 pm
2 stops7h 05m
Seattle/Tacoma Intl
Tue 11/3
7:40 am-3:20 pm
1 stop6h 40m
$262
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Denver to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Denver with our price prediction graph.
DEN-BLI
DEN-SEA
DEN-PAE
DEN-PSC
DEN-PDX
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 Denver to Washington
DEN-USWA
DEN-BLI
DEN-SEA
DEN-PAE
DEN-PSC
What is the cheapest month to book a flight from Denver to State of Washington?
Currently, November is the cheapest month in which you can book a flight from Denver to State of Washington (average of $213). Flying from Denver to State of Washington in January is currently the most expensive (average of $488). 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 DEN to WA?
Find hourly flight availability from Denver to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 16, 2026.
It’s typically best to fly out from Denver to State of Washington in the morning. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.
Weekly flight availability from Denver to State of Washington
Explore weekly flight availability from Denver to Washington. 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 July 16, 2026.
The most flights from DEN to USWA are scheduled on a Thursday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).
How much does it cost to fly round-trip from Denver to State of Washington?
How far ahead should I book a flight from Denver to State of Washington?
The price you pay for your flight from Denver to State of Washington may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Denver to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from Denver to Washington. Price data was last updated on July 11, 2026.
Travelers seeking maximum savings on their Denver to State of Washington flight should consider departing on Sunday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated July 16, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Denver to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Denver to Washington. 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 Denver to Washington
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Complete your trip
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Denver and Washington flights
Browse other Denver and Washington flight options. Last updated on July 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Denver to Washington flights
Consider these flights traveling from Denver to Washington.
Top 6 airlines flying from Denver to Washington
Discover the top 6 airlines that operate flights from Denver to Washington. 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 July 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$175 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$87 | Average$273 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$96 | Average$215 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$117 | Average$349 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$117 | Average$351 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$124 | Average$413 | FlexibilityNo cancel fee | On-time75% |