$111+ Cheap flights from Dulles Intl (IAD) to Washington
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SEA
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Cheapest flights from Dulles Intl to WashingtonExplore the most affordable flight options available from Dulles Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from Dulles Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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 10/76:13 am -
1 stop9h 06m
Sat 10/107:05 am -
1 stop10h 01m
Deal found 9/15![Delta logo]()
$221
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 11/267:00 am -
1 stop8h 15m
Tue 12/11:16 pm -
1 stop8h 26m
Deal found 9/14![Delta logo]()
$236
This Delta deal was found by Cheapflights users on 9/15. 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 11/57:23 am -
1 stop7h 52m
Mon 11/910:55 pm -
1 stop7h 14m
Deal found 9/15![Delta logo]()
$251
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 11/137:25 am -
1 stop7h 41m
Mon 11/161:59 pm -
1 stop6h 22m
Deal found 9/14![Delta logo]()
$265
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/107:02 am -
Nonstop5h 42m
Sat 10/173:56 pm -
Nonstop5h 03m
Deal found 9/15![Alaska Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/56:00 am -
1 stop30h 42m
Mon 10/199:16 pm -
2 stops16h 57m
Deal found 9/11![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/56:00 am -
1 stop30h 42m
Thu 10/229:16 pm -
1 stop30h 04m
Deal found 9/11![Frontier logo]()
$284
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 11/247:25 am -
1 stop7h 41m
Wed 12/21:44 pm -
1 stop7h 03m
Deal found 9/14![Delta logo]()
$286
This Delta deal was found by Cheapflights users on 9/15. 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 10/227:05 am -
Nonstop5h 51m
Mon 10/2611:59 pm -
1 stop8h 33m
Deal found 9/15![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 9/15. 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 12/27:00 am -
1 stop8h 15m
Sun 12/61:44 pm -
1 stop7h 03m
Deal found 9/15![Delta logo]()
$288
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am -
1 stop30h 42m
Tue 10/133:56 pm -
Nonstop5h 03m
Deal found 9/15![Multiple Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 11/107:00 am -
1 stop8h 19m
Wed 11/251:08 pm -
1 stop8h 33m
Deal found 9/14![Delta logo]()
$291
Best flights from Dulles Intl to WashingtonDiscover carefully curated flight deals from Dulles Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Dulles Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/207:02 am -
Nonstop5h 42m
Thu 10/223:56 pm -
Nonstop5h 03m
Deal found 9/15![Alaska Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 10/137:05 am -
1 stop8h 13m
Tue 10/2011:18 am -
1 stop8h 31m
Deal found 9/15![Delta logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 12/105:55 pm -
Nonstop6h 06m
Sun 12/137:00 am -
1 stop8h 23m
Deal found 9/11![United Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:14 am -
2 stops11h 37m
Sat 10/35:05 am -
2 stops12h 19m
Deal found 9/14![American Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 10/167:05 am -
1 stop10h 45m
Tue 10/209:30 am -
1 stop10h 19m
Deal found 9/13![Delta logo]()
$356
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 12/1110:10 am -
1 stop9h 08m
Mon 12/148:09 am -
Nonstop4h 59m
Deal found 9/11![United Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/107:02 am -
Nonstop5h 42m
Mon 10/129:36 pm -
Nonstop5h 04m
Deal found 9/15![Alaska Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 9/255:12 pm -
1 stop7h 25m
Mon 10/511:10 am -
1 stop8h 46m
Deal found 9/14![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 11/15:50 pm -
Nonstop6h 06m
Sat 11/78:09 am -
Nonstop4h 59m
Deal found 9/14![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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.
Mon 10/197:24 pm -
1 stop17h 04m
Sat 10/243:56 pm -
Nonstop5h 03m
Deal found 9/12![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 9/15. 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 10/153:03 pm -
1 stop9h 29m
Mon 10/1910:50 pm -
1 stop7h 29m
Deal found 9/15![Delta logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/264:12 pm -
1 stop7h 37m
Tue 9/291:05 pm -
1 stop9h 08m
Deal found 9/13![United Airlines logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 11/56:46 pm -
1 stop17h 41m
Sun 11/88:48 pm -
1 stop17h 52m
Deal found 9/14![Alaska Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 10/66:12 pm -
1 stop8h 40m
Sat 10/1010:59 pm -
1 stop9h 51m
Deal found 9/15![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/135:45 pm -
Nonstop5h 52m
Tue 10/207:00 am -
1 stop7h 44m
Deal found 9/13![United Airlines logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 10/137:24 pm -
1 stop30h 26m
Sat 10/1712:42 pm -
1 stop8h 17m
Deal found 9/11![Alaska Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 9/12. 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.
Tue 10/137:05 am -
1 stop8h 13m
Sat 10/171:00 pm -
1 stop8h 42m
Deal found 9/12![Delta logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/157:02 am -
1 stop17h 23m
Mon 10/191:38 pm -
1 stop7h 21m
Deal found 9/15![Alaska Airlines logo]()
$431
This United Airlines deal was found by Cheapflights users on 9/13. 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 12/15:55 pm -
Nonstop6h 06m
Tue 12/88:09 am -
Nonstop4h 59m
Deal found 9/13![United Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 9/15. 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 12/27:00 am -
1 stop8h 15m
Sun 12/611:20 am -
2 stops9h 03m
Deal found 9/15![Delta logo]()
$417
This Orbitz deal was found by Cheapflights users on 9/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:17 pm -
1 stop9h 29m
Wed 12/23:14 pm -
2 stops23h 25m
Deal found 9/15![Alaska Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 12/66:15 am -
1 stop8h 59m
Wed 12/91:47 pm -
1 stop8h 12m
Deal found 9/11![United Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 10/46:10 am -
1 stop7h 16m
Sat 10/1011:58 am -
Nonstop5h 08m
Deal found 9/15![Delta logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/287:02 am -
2 stops16h 48m
Sat 10/315:06 am -
1 stop8h 24m
Deal found 9/15![Alaska Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 9/15. 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 10/146:13 am -
1 stop9h 06m
Wed 10/217:05 am -
2 stops13h 11m
Deal found 9/15![Delta logo]()
$436
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/247:02 am -
1 stop13h 21m
Wed 10/285:20 am -
2 stops15h 39m
Deal found 9/15![Alaska Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 11/135:19 pm -
Nonstop5h 56m
Sun 11/158:30 am -
Nonstop4h 52m
Deal found 9/14![United Airlines logo]()
$517
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:15 am -
2 stops11h 08m
Thu 10/223:00 pm -
2 stops11h 32m
Deal found 9/14![American Airlines logo]()
$962
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/75:30 pm -
Nonstop5h 40m
Tue 10/138:25 am -
Nonstop5h 02m
Deal found 9/15![United Airlines logo]()
$517
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/249:38 am -
2 stops33h 45m
Wed 10/2811:34 am -
1 stop9h 25m
Deal found 9/15![Alaska Airlines logo]()
$478
Last-minute flights from Dulles Intl to WashingtonDiscover last-minute flight deals from Dulles Intl to Washington. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Washington. Data last updated September 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/56:00 am -
1 stop30h 42m
Mon 10/199:16 pm -
2 stops16h 57m
Deal found 9/11![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/56:00 am -
1 stop30h 42m
Thu 10/229:16 pm -
1 stop30h 04m
Deal found 9/11![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/56:00 am -
1 stop30h 42m
Wed 10/214:27 pm -
2 stops16h 07m
Deal found 9/11![Frontier logo]()
$294
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am -
1 stop30h 42m
Tue 10/133:56 pm -
Nonstop5h 03m
Deal found 9/15![Multiple Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 10/65:13 pm -
1 stop7h 52m
Tue 10/1311:10 pm -
1 stop8h 02m
Deal found 9/15![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 9/15. 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 10/76:13 am -
1 stop9h 06m
Sat 10/107:05 am -
1 stop10h 01m
Deal found 9/15![Delta logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/76:00 am -
1 stop29h 58m
Tue 10/138:00 pm -
2 stops31h 20m
Deal found 9/11![Frontier logo]()
$295
This Delta deal was found by Cheapflights users on 9/14. 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 10/76:13 am -
1 stop9h 06m
Sun 10/1111:18 am -
1 stop8h 31m
Deal found 9/14![Delta logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/107:02 am -
Nonstop5h 42m
Sat 10/173:56 pm -
Nonstop5h 03m
Deal found 9/15![Alaska Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:01 am -
1 stop7h 57m
Thu 10/229:42 pm -
1 stop8h 02m
Deal found 9/15![American Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/209:38 am -
Nonstop5h 42m
Thu 10/229:16 pm -
1 stop30h 04m
Deal found 9/15![Multiple Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/15. 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 10/227:05 am -
Nonstop5h 51m
Mon 10/2611:59 pm -
1 stop8h 33m
Deal found 9/15![Delta logo]()
$287
One-way flights from Dulles Intl to WashingtonSearch for one-way flight options from Dulles Intl to Washington. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Dulles Intl to Washington. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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 10/177:05 am -
1 stop10h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$111
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 12/147:00 am -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$126
This Delta deal was found by Cheapflights users on 9/15. 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.
Fri 10/166:13 am -
1 stop9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$140
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/69:45 am -
1 stop11h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$169
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/188:20 am -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 11/1211:16 am -
2 stops30h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$180
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 11/196:10 am -
1 stop9h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/59:04 pm -
2 stops21h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$181
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 11/207:00 am -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 11/69:06 pm -
2 stops21h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 11/57:40 am -
2 stops29h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Tue 10/136:00 am -
2 stops39h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$185
Find flight deals from Dulles Intl to Washington
Keep the following information in mind while searching for Dulles Intl to Washington flight deals. Data was last updated September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (Delta) |
One-way from | $111 (Delta) |
Popular in | July |
Cheapest in | February |
Average price | $409 |
Good round-trip deal | $388 or less |
Good one-way deal | $249 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl 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 7,457,451 searches. Data last updated September 16, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Sat 2/6
11:45 am-5:10 pm
1 stop8h 25m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$111
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Sat 10/17
7:05 am-2:50 pm
1 stop10h 45m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$111
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Fri 10/16
6:13 am-12:19 pm
1 stop9h 06m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$140
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Tue 10/6
9:45 am-6:31 pm
1 stop11h 46m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$169
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Sat 10/17
6:42 am-11:59 am
1 stop8h 17m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$169
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Wed 11/18
8:20 am-12:47 pm
1 stop7h 27m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$179
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Thu 11/19
6:10 am-12:47 pm
1 stop9h 37m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$180
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Fri 11/20
7:00 am-12:15 pm
1 stop8h 15m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$181
Washington, D.C.Spokane
IAD Washington, D.C. Dulles Intl - GEG Spokane
IADGEG
Washington, D.C. Dulles Intl
Tue 10/13
7:05 am-12:18 pm
1 stop8h 13m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$186
Washington, D.C.Seattle
IAD Washington, D.C. Dulles Intl - SEA Seattle/Tacoma Intl
IADSEA
Washington, D.C. Dulles Intl
Thu 12/10
5:18 pm-8:27 pm
Nonstop6h 09m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$219
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Dulles Intl with our price prediction graph.
IAD-GEG
IAD-SEA
IAD-PSC
IAD-ALW
IAD-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 Washington, D.C. Dulles Intl Airport to Washington
IAD-USWA
IAD-GEG
IAD-SEA
IAD-PSC
IAD-ALW
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to State of Washington (average of $229). Flying from Washington, D.C. Dulles Intl Airport to State of Washington in June is currently the most expensive (average of $538). 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 IAD to WA?
Find hourly flight availability from Dulles Intl 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 September 16, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 22% on flights from Washington, D.C. Dulles Intl Airport to State of Washington by exploring options for tickets in the morning.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to State of Washington
Explore weekly flight availability from Dulles Intl 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 September 16, 2026.
The most flights from IAD to USWA are scheduled on a Monday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to State of Washington?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to State of Washington flights typically cost between $318 and $488 in October.The cheapest round-trip price found within the last 5 days was $282 on Alaska Airlines (Oct 15-Oct 22).
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to State of Washington?
The best time to book flights from Washington, D.C. Dulles Intl Airport to State of Washington is 20 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 Washington, D.C. Dulles Intl Airport to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Washington. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to State of Washington flight should consider departing on Friday evenings when fares are most often at their lowest. Monday evenings 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 September 16, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Washington, such as Alaska Airlines,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Overall
7.9
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
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Dulles Intl and Washington flights
Browse other Dulles Intl and Washington flight options. Last updated on September 16, 2026.
Popular flight searches
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Dulles Intl to Washington flights
Consider these flights traveling from Dulles Intl to Washington.
Top 6 airlines flying from Dulles Intl to Washington
Discover the top 6 airlines that operate flights from Dulles Intl 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 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$467 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$144 | Average$410 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$145 | Average$355 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$493 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$231 | Average$467 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$337 | Average$583 | FlexibilityNo cancel fee | On-time71% |