$201+ Cheap flights from Boston (BOS) 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
Nov 20 — Nov 271
Round-trip
1 adult, Economy
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Cheapest flights from Boston to WashingtonExplore the most affordable flight options available from Boston to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2026.
Explore the most affordable flight options available from Boston to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2026.
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:00 am -
1 stop8h 15m
Wed 12/91:35 pm -
1 stop7h 10m
Deal found 10/20![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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 12/157:25 am -
1 stop7h 48m
Thu 12/171:44 pm -
1 stop7h 29m
Deal found 10/19![Delta logo]()
$273
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/162:58 pm -
1 stop10h 04m
Tue 12/2911:42 pm -
1 stop7h 35m
Deal found 10/20![United Airlines logo]()
$345
This Priceline deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:03 am -
1 stop10h 42m
Fri 11/135:19 pm -
1 stop9h 27m
Deal found 10/20![Alaska Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:29 pm -
1 stop8h 34m
Sat 11/79:05 am -
1 stop9h 19m
Deal found 10/21![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1110:20 am -
1 stop11h 55m
Mon 12/147:00 am -
1 stop9h 50m
Deal found 10/19![Southwest logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:09 pm -
1 stop18h 18m
Mon 11/169:08 am -
1 stop17h 38m
Deal found 10/21![Alaska Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/163:31 pm -
1 stop10h 04m
Tue 12/2911:59 pm -
1 stop8h 54m
Deal found 10/19![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:15 am -
1 stop8h 32m
Mon 11/91:49 pm -
1 stop7h 01m
Deal found 10/20![United Airlines logo]()
$362
This Expedia deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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.
Sat 12/56:13 pm -
1 stop18h 19m
Sun 12/63:40 pm -
Nonstop5h 19m
Deal found 10/18![Alaska Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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 12/12:25 pm -
2 stops10h 30m
Thu 12/31:35 pm -
1 stop7h 10m
Deal found 10/19![Southwest logo]()
$366
This Kissandfly.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:25 pm -
Nonstop6h 30m
Wed 11/189:20 pm -
Nonstop5h 20m
Deal found 10/20![Alaska Airlines logo]()
$371
Best flights from Boston to WashingtonDiscover carefully curated flight deals from Boston to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 21, 2026.
Discover carefully curated flight deals from Boston to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 21, 2026.
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 11/41:29 pm -
1 stop8h 34m
Sat 11/79:05 am -
1 stop9h 19m
Deal found 10/16![United Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/126:20 pm -
Nonstop6h 24m
Mon 11/165:19 pm -
1 stop9h 27m
Deal found 10/17![Alaska Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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 11/175:55 pm -
1 stop8h 40m
Fri 11/205:30 am -
1 stop7h 40m
Deal found 10/19![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/163:45 pm -
1 stop8h 17m
Mon 11/235:04 pm -
1 stop10h 16m
Deal found 10/17![Delta logo]()
$423
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Fri 12/44:45 pm -
1 stop8h 30m
Mon 12/79:00 am -
2 stops11h 59m
Deal found 10/16![United Airlines logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:03 am -
1 stop17h 32m
Sun 11/154:39 pm -
1 stop10h 01m
Deal found 10/16![Alaska Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/161:10 pm -
2 stops11h 45m
Tue 12/296:00 pm -
2 stops11h 05m
Deal found 10/20![Southwest logo]()
$436
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/17:26 pm -
Nonstop6h 29m
Tue 12/87:38 am -
Nonstop5h 25m
Deal found 10/18![Delta logo]()
$467
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/12:25 pm -
2 stops10h 30m
Sat 12/56:40 am -
2 stops12h 20m
Deal found 10/18![Southwest logo]()
$462
This Delta deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 12/310:40 am -
Nonstop6h 29m
Sun 12/67:38 am -
Nonstop5h 25m
Deal found 10/17![Delta logo]()
$467
This Alaska Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:44 pm -
Nonstop6h 24m
Sun 11/2211:22 pm -
Nonstop5h 18m
Deal found 10/20![Alaska Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 11/214:56 pm -
1 stop9h 11m
Tue 11/246:30 am -
1 stop7h 57m
Deal found 10/18![United Airlines logo]()
$467
This Southwest deal was found by Cheapflights users on 10/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:15 am -
1 stop16h 00m
Thu 11/1211:10 am -
2 stops9h 45m
Deal found 10/16![Southwest logo]()
$462
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:40 am -
1 stop28h 49m
Wed 12/23:40 pm -
Nonstop5h 19m
Deal found 10/16![Alaska Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:05 am -
1 stop9h 47m
Fri 11/1311:07 pm -
Nonstop5h 13m
Deal found 10/17![Delta logo]()
$502
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 10/295:00 am -
1 stop8h 00m
Tue 11/36:40 am -
2 stops12h 10m
Deal found 10/18![Southwest logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:13 am -
1 stop8h 45m
Sun 11/84:39 pm -
1 stop10h 01m
Deal found 10/16![Alaska Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
2 stops10h 06m
Sat 11/75:10 am -
1 stop7h 20m
Deal found 10/18![United Airlines logo]()
$556
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 10/261:57 pm -
1 stop10h 35m
Wed 10/287:05 am -
1 stop9h 36m
Deal found 10/18![Delta logo]()
$507
This Southwest deal was found by Cheapflights users on 10/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:40 am -
2 stops14h 00m
Wed 11/41:35 pm -
1 stop7h 10m
Deal found 10/16![Southwest logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:22 pm -
1 stop8h 29m
Mon 12/74:21 pm -
2 stops10h 19m
Deal found 10/20![Alaska Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/56:05 am -
1 stop8h 41m
Mon 12/712:35 pm -
1 stop8h 27m
Deal found 10/18![Delta logo]()
$521
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/311:00 am -
2 stops13h 14m
Sun 12/65:10 am -
2 stops9h 45m
Deal found 10/18![United Airlines logo]()
$577
This Alaska Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 12/246:19 pm -
1 stop8h 40m
Mon 1/45:00 am -
1 stop7h 43m
Deal found 10/17![Alaska Airlines logo]()
$482
This Southwest deal was found by Cheapflights users on 10/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:50 pm -
2 stops9h 55m
Thu 11/52:50 pm -
1 stop7h 25m
Deal found 10/16![Southwest logo]()
$500
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 11/227:50 am -
Nonstop6h 27m
Fri 11/277:38 am -
Nonstop5h 22m
Deal found 10/18![Delta logo]()
$522
This Alaska Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/147:13 am -
1 stop8h 59m
Tue 11/171:49 pm -
1 stop7h 09m
Deal found 10/17![Alaska Airlines logo]()
$491
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/193:00 pm -
2 stops12h 45m
Mon 12/218:30 pm -
2 stops11h 30m
Deal found 10/20![Southwest logo]()
$518
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:05 am -
1 stop8h 36m
Sat 11/76:00 am -
1 stop7h 38m
Deal found 10/20![Delta logo]()
$551
This Expedia deal was found by Cheapflights users on 10/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:03 am -
2 stops17h 54m
Wed 11/2512:54 pm -
1 stop14h 26m
Deal found 10/16![Alaska Airlines logo]()
$505
Last-minute flights from Boston to WashingtonDiscover last-minute flight deals from Boston to Washington. Data last updated October 21, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Washington. Data last updated October 21, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:29 pm -
1 stop8h 34m
Sat 11/79:05 am -
1 stop9h 19m
Deal found 10/21![United Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:15 am -
1 stop8h 32m
Mon 11/91:49 pm -
1 stop7h 01m
Deal found 10/20![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:55 pm -
2 stops12h 30m
Mon 11/92:35 pm -
2 stops14h 45m
Deal found 10/20![Southwest logo]()
$395
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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 11/79:30 am -
2 stops13h 35m
Mon 11/94:05 pm -
2 stops13h 15m
Deal found 10/19![Southwest logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:03 pm -
1 stop13h 57m
Mon 11/97:46 pm -
1 stop17h 55m
Deal found 10/21![Alaska Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:30 am -
1 stop9h 20m
Mon 11/910:55 pm -
1 stop10h 37m
Deal found 10/19![Delta logo]()
$390
This Kissandfly.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:13 am -
Nonstop6h 26m
Sun 11/157:04 pm -
1 stop7h 48m
Deal found 10/19![Multiple Airlines logo]()
$385
This Kissandfly.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:25 pm -
Nonstop6h 30m
Wed 11/189:20 pm -
Nonstop5h 20m
Deal found 10/20![Alaska Airlines logo]()
$371
This Priceline deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:03 am -
1 stop10h 42m
Fri 11/135:19 pm -
1 stop9h 27m
Deal found 10/20![Alaska Airlines logo]()
$351
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:09 pm -
1 stop18h 18m
Mon 11/169:08 am -
1 stop17h 38m
Deal found 10/21![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Sun 11/156:00 am -
1 stop9h 19m
Sun 11/2210:56 pm -
1 stop7h 27m
Deal found 10/16![United Airlines logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:03 am -
1 stop10h 42m
Wed 12/27:05 am -
1 stop31h 03m
Deal found 10/20![Alaska Airlines logo]()
$395
One-way flights from Boston to WashingtonSearch for one-way flight options from Boston to Washington. Find affordable one-way fares based on user searches. Data last updated October 21, 2026.
Search for one-way flight options from Boston to Washington. Find affordable one-way fares based on user searches. Data last updated October 21, 2026.
This Trip.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:03 am -
1 stop10h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$201
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:39 am -
1 stop10h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![American Airlines logo]()
$204
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:03 am -
1 stop12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$204
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Mon 11/236:00 am -
1 stop9h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$205
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:30 am -
2 stops13h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$207
This Orbitz deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:33 pm -
1 stop22h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$209
This Southwest deal was found by Cheapflights users on 10/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:10 am -
1 stop16h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Southwest logo]()
$210
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/159:00 am -
1 stop10h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![United Airlines logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/106:28 pm -
1 stop8h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Alaska Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/2411:20 am -
2 stops13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Southwest logo]()
$217
This Orbitz deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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.
Thu 11/197:03 am -
1 stop12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Alaska Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/1712:15 pm -
2 stops29h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$222
Find flight deals from Boston to Washington
Keep the following information in mind while searching for Boston to Washington flight deals. Data was last updated October 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $263 (Southwest) |
One-way from | $201 (Trip.com) |
Popular in | December |
Cheapest in | March |
Average price | $432 |
Good round-trip deal | $447 or less |
Good one-way deal | $259 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 October 21, 2026.
Use the filters below to find and compare flights from Boston to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Thu 11/12
7:03 am-4:56 pm
1 stop12h 53m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Mon 11/23
10:30 am-9:11 pm
2 stops13h 41m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$207
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Sun 11/15
9:00 am-4:27 pm
1 stop10h 27m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$212
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sun 1/10
6:28 pm-11:57 pm
1 stop8h 29m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$215
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sun 11/1
9:20 am-3:25 pm
1 stop9h 05m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$231
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Mon 11/2
9:00 am-6:29 pm
1 stop12h 29m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$231
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Mon 11/16
7:25 pm-10:55 pm
Nonstop6h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$234
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Sat 11/21
6:37 pm-10:05 pm
Nonstop6h 28m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$234
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Wed 12/2
7:50 am-11:21 am
Nonstop6h 31m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$234
Quickest round-trip
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Fri 11/13
9:03 am-12:27 pm
Nonstop6h 24m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$234
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Boston to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Boston with our price prediction graph.
BOS-SEA
BOS-GEG
BOS-PSC
BOS-PUW
BOS-PAE
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 Boston to Washington
BOS-USWA
BOS-SEA
BOS-GEG
BOS-PSC
BOS-PUW
What is the cheapest month to book a flight from Boston to State of Washington?
Currently, March is the cheapest month in which you can book a flight from Boston to State of Washington (average of $368). Flying from Boston to State of Washington in December is currently the most expensive (average of $545). 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 BOS to WA?
Find hourly flight availability from Boston 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 October 21, 2026.
When flying from Boston to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Boston to State of Washington
Explore weekly flight availability from Boston 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 October 21, 2026.
The most flights from BOS to USWA are scheduled on a Monday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Boston to State of Washington?
Airfare is below average for this route at the moment.
Boston to State of Washington flights typically cost between $370 and $586 in November.The cheapest round-trip price found within the last 5 days was $351 on Alaska Airlines (Nov 13-Nov 13).
How far ahead should I book a flight from Boston to State of Washington?
The best time to book flights from Boston to State of Washington is 84 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.
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 October 21, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Boston to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Entertainment
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Boston 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 Boston to Washington
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Complete your trip
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Search flights from Boston to Washington by cabin class
Find flights from Boston to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Washington flights
Browse other Boston and Washington flight options. Last updated on October 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Boston to Washington flights
Consider these flights traveling from Boston to Washington.
Top 7 airlines flying from Boston to Washington
Discover the top 7 airlines that operate flights from Boston 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 October 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$172 | Average$366 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$196 | Average$507 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$425 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$241 | Average$627 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$254 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$286 | Average$507 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$298 | Average$507 | FlexibilityNo cancel fee | On-time63% |