$132+ Cheap flights from Washington to Boston (BOS)
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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Washington to BostonExplore the most affordable flight options available from Washington to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Washington to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
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.
Tue 11/104:39 pm -
1 stop10h 01m
Wed 11/119:03 am -
1 stop8h 19m
Deal found 10/21![Alaska Airlines logo]()
$257
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 11/124:39 pm -
1 stop10h 01m
Mon 11/167:13 am -
1 stop10h 09m
Deal found 10/21![Alaska Airlines logo]()
$263
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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.
Fri 12/46:00 am -
1 stop10h 39m
Mon 12/77:15 am -
1 stop9h 17m
Deal found 10/22![American Airlines logo]()
$298
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/41:35 pm -
1 stop7h 10m
Mon 12/71:10 pm -
2 stops11h 45m
Deal found 10/22![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/45:00 am -
1 stop8h 03m
Mon 12/76:45 pm -
1 stop8h 12m
Deal found 10/24![Delta logo]()
$310
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/27:00 am -
1 stop9h 50m
Tue 12/85:55 pm -
1 stop8h 40m
Deal found 10/22![Southwest logo]()
$312
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:15 am -
1 stop8h 45m
Sat 12/129:30 am -
2 stops14h 00m
Deal found 10/21![Southwest logo]()
$318
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 12/106:10 am -
2 stops12h 35m
Mon 12/142:25 pm -
2 stops11h 25m
Deal found 10/20![Southwest logo]()
$323
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:30 am -
1 stop6h 50m
Sun 12/66:30 pm -
1 stop9h 05m
Deal found 10/21![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/41:35 pm -
1 stop7h 10m
Sun 12/65:00 am -
1 stop8h 15m
Deal found 10/23![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/49:25 am -
2 stops9h 20m
Tue 12/82:25 pm -
2 stops11h 25m
Deal found 10/23![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/411:20 am -
1 stop7h 25m
Mon 12/78:25 am -
2 stops16h 15m
Deal found 10/23![Southwest logo]()
$336
Best flights from Washington to BostonDiscover carefully curated flight deals from Washington to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Washington to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 1/712:35 pm -
1 stop14h 05m
Mon 1/117:00 am -
1 stop8h 42m
Deal found 10/22![Alaska Airlines logo]()
$263
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.
Thu 1/79:15 am -
2 stops9h 44m
Mon 1/111:24 pm -
2 stops10h 42m
Deal found 10/21![United Airlines logo]()
$310
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.
Tue 12/156:30 am -
1 stop6h 50m
Tue 12/155:55 pm -
1 stop8h 40m
Deal found 10/20![Southwest logo]()
$312
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:45 pm -
Nonstop5h 09m
Wed 11/1810:40 am -
Nonstop6h 23m
Deal found 10/21![Delta logo]()
$467
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/56:45 am -
1 stop7h 20m
Fri 12/116:30 pm -
1 stop9h 05m
Deal found 10/22![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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.
Sun 12/65:30 am -
1 stop7h 40m
Tue 12/83:30 pm -
2 stops11h 05m
Deal found 10/23![Southwest logo]()
$330
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.
Tue 1/55:47 pm -
1 stop8h 53m
Tue 1/196:14 pm -
2 stops20h 13m
Deal found 10/21![Alaska Airlines logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/108:59 pm -
1 stop15h 31m
Thu 11/126:09 pm -
1 stop18h 18m
Deal found 10/25![Alaska Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/46:40 am -
2 stops12h 15m
Sun 12/68:15 am -
1 stop11h 55m
Deal found 10/23![Southwest logo]()
$348
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/127:00 am -
1 stop11h 24m
Sun 11/157:15 am -
1 stop8h 32m
Deal found 10/25![United Airlines logo]()
$452
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:10 am -
1 stop7h 50m
Wed 12/27:50 am -
1 stop10h 21m
Deal found 10/21![Delta logo]()
$491
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 3/35:06 am -
1 stop7h 21m
Sun 3/77:08 am -
1 stop8h 22m
Deal found 10/25![Alaska Airlines logo]()
$418
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/76:45 am -
1 stop7h 50m
Wed 1/131:15 pm -
2 stops12h 25m
Deal found 10/25![Southwest logo]()
$402
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:10 am -
1 stop7h 50m
Wed 11/186:05 am -
1 stop8h 36m
Deal found 10/21![Delta logo]()
$507
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 2/233:05 pm -
2 stops29h 54m
Sat 2/277:08 am -
2 stops34h 17m
Deal found 10/23![Alaska Airlines logo]()
$435
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/96:40 am -
2 stops12h 05m
Mon 12/142:25 pm -
2 stops10h 30m
Deal found 10/25![Southwest logo]()
$403
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/255:35 am -
1 stop7h 51m
Thu 11/267:50 am -
Nonstop6h 30m
Deal found 10/25![Delta logo]()
$512
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.
Wed 11/47:59 pm -
1 stop17h 42m
Fri 11/139:03 am -
Nonstop6h 24m
Deal found 10/21![Alaska Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/99:25 am -
2 stops9h 50m
Wed 12/161:10 pm -
2 stops12h 40m
Deal found 10/25![Southwest logo]()
$407
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/2111:07 pm -
Nonstop5h 13m
Mon 11/307:50 am -
Nonstop6h 30m
Deal found 10/25![Delta logo]()
$532
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/812:36 pm -
2 stops49h 32m
Tue 12/156:13 pm -
2 stops20h 43m
Deal found 10/24![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/256:54 pm -
1 stop8h 26m
Wed 12/307:00 am -
Nonstop6h 38m
Deal found 10/23![Alaska Airlines logo]()
$502
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 1/205:10 am -
1 stop7h 43m
Sat 1/237:00 am -
1 stop10h 32m
Deal found 10/20![Alaska Airlines logo]()
$513
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/114:00 pm -
1 stop20h 30m
Wed 12/24:56 pm -
1 stop9h 03m
Deal found 10/23![Alaska Airlines logo]()
$513
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 12/512:36 pm -
1 stop24h 17m
Sat 12/124:56 pm -
1 stop22h 00m
Deal found 10/21![Alaska Airlines logo]()
$524
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 2/26:15 am -
1 stop8h 10m
Sat 2/66:28 pm -
1 stop8h 12m
Deal found 10/23![Alaska Airlines logo]()
$535
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/163:40 pm -
Nonstop5h 19m
Sun 1/36:19 pm -
Nonstop6h 41m
Deal found 10/25![Alaska Airlines logo]()
$537
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.
Wed 11/114:00 pm -
1 stop20h 30m
Wed 11/187:13 am -
2 stops18h 10m
Deal found 10/21![Alaska Airlines logo]()
$547
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/307:20 pm -
1 stop9h 20m
Mon 1/45:47 pm -
2 stops31h 49m
Deal found 10/25![Alaska Airlines logo]()
$547
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/912:36 pm -
2 stops25h 32m
Wed 12/167:00 am -
1 stop9h 23m
Deal found 10/25![Alaska Airlines logo]()
$559
Last-minute flights from Washington to BostonDiscover last-minute flight deals from Washington to Boston. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Boston. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/79:05 am -
1 stop9h 19m
Wed 11/111:29 pm -
1 stop8h 34m
Deal found 10/22![United Airlines logo]()
$352
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:30 am -
1 stop13h 35m
Thu 11/126:30 pm -
1 stop9h 15m
Deal found 10/21![Southwest logo]()
$330
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:15 am -
1 stop8h 45m
Tue 11/105:55 pm -
1 stop8h 40m
Deal found 10/21![Southwest logo]()
$337
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.
Tue 11/104:39 pm -
1 stop10h 01m
Wed 11/119:03 am -
1 stop8h 19m
Deal found 10/21![Alaska Airlines logo]()
$257
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 11/124:39 pm -
1 stop10h 01m
Mon 11/167:13 am -
1 stop10h 09m
Deal found 10/21![Alaska Airlines logo]()
$263
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.
Thu 11/127:46 pm -
1 stop17h 55m
Wed 11/187:03 am -
1 stop12h 53m
Deal found 10/20![Alaska Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/135:30 am -
1 stop13h 35m
Thu 11/198:25 am -
2 stops16h 15m
Deal found 10/23![Southwest logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/136:51 pm -
1 stop17h 39m
Tue 11/177:03 am -
1 stop16h 24m
Deal found 10/25![Alaska Airlines logo]()
$350
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/146:45 am -
1 stop7h 25m
Mon 11/234:20 pm -
1 stop11h 15m
Deal found 10/23![Southwest logo]()
$355
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.
Tue 11/177:00 am -
1 stop9h 50m
Thu 12/34:40 pm -
1 stop9h 10m
Deal found 10/20![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:30 am -
1 stop6h 50m
Fri 12/45:55 pm -
1 stop8h 40m
Deal found 10/23![Southwest logo]()
$325
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/266:00 am -
1 stop8h 52m
Tue 12/14:44 pm -
1 stop10h 13m
Deal found 10/22![American Airlines logo]()
$358
One-way flights from Washington to BostonSearch for one-way flight options from Washington to Boston. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Washington to Boston. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Expedia deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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.
Thu 12/247:26 pm -
1 stop7h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Alaska Airlines logo]()
$132
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/166:40 am -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$197
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/167:00 am -
2 stops11h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 1/46:25 am -
2 stops13h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Southwest logo]()
$209
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.
Wed 11/117:59 pm -
1 stop17h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/2310:43 pm -
1 stop10h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/610:35 am -
1 stop27h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Alaska Airlines logo]()
$212
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 2/76:15 am -
1 stop11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![American Airlines logo]()
$215
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:37 pm -
2 stops36h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$215
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/811:15 pm -
1 stop8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$216
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/163:00 pm -
1 stop11h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$217
This Orbitz deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 1/1910:50 pm -
2 stops14h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Alaska Airlines logo]()
$218
Find flight deals from Washington to Boston
Keep the following information in mind while searching for Washington to Boston flight deals. Data was last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Alaska Airlines) |
One-way from | $132 (Southwest) |
Popular in | December |
Cheapest in | May |
Average price | $448 |
Good round-trip deal | $447 or less |
Good one-way deal | $277 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Boston 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 26, 2026.
Use the filters below to find and compare flights from Washington to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Thu 12/24
7:26 pm-6:20 am
1 stop7h 54m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$132
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Thu 12/24
11:42 pm-2:25 pm
2 stops11h 43m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$202
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Wed 12/16
7:00 am-9:59 pm
2 stops11h 59m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$202
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Mon 1/4
6:25 am-10:35 pm
2 stops13h 10m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$209
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Wed 12/23
10:43 pm-12:29 pm
1 stop10h 46m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$212
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Sat 2/13
7:00 am-7:11 pm
1 stop9h 11m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$212
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Wed 12/16
3:00 pm-5:28 am
1 stop11h 28m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$217
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Fri 11/6
7:00 am-9:24 pm
1 stop11h 24m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$231
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Sat 12/5
10:52 pm-7:19 am
Nonstop5h 27m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Wed 12/2
3:40 pm-11:59 pm
Nonstop5h 19m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Washington with our price prediction graph.
GEG-BOS
SEA-BOS
PSC-BOS
PUW-BOS
EAT-BOS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington to Boston
USWA-BOS
GEG-BOS
SEA-BOS
PSC-BOS
PUW-BOS
What is the cheapest month to book a flight from State of Washington to Boston?
Currently, February is the cheapest month in which you can book a flight from State of Washington to Boston (average of $394). Flying from State of Washington to Boston in December is currently the most expensive (average of $574). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from WA to BOS?
Find hourly flight availability from Washington to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 26, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from State of Washington to Boston by exploring options for tickets in the evening.
Weekly flight availability from State of Washington to Boston
Explore weekly flight availability from Washington to Boston. 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 26, 2026.
The most flights from USWA to BOS are scheduled on a Saturday (26 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from State of Washington to Boston?
Airfare is below average for this route at the moment.
State of Washington to Boston flights typically cost between $366 and $647 in December.The cheapest round-trip price found within the last 5 days was $312 on Southwest (Dec 2-Dec 8).
How far ahead should I book a flight from State of Washington to Boston?
The best time to book flights from State of Washington to Boston is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from State of Washington to Boston?
Use this chart to determine the cheapest time to fly round-trip from Washington to Boston. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their State of Washington to Boston flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Washington to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Warwick
Pawtucket
Peabody
Fitchburg
Londonderry
York Beach
Revere
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes
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Alternative routes for Washington to Boston
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Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Washington to Boston by cabin class
Find flights from Washington to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Boston flights
Browse other Washington and Boston flight options. Last updated on October 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington to Boston flights
Consider these flights traveling from Washington to Boston.
Top 7 airlines flying from Washington to Boston
Discover the top 7 airlines that operate flights from Washington to Boston. 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 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$183 | Average$557 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$197 | Average$397 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$201 | Average$487 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$209 | Average$462 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$220 | Average$422 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$233 | Average$457 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$256 | Average$517 | FlexibilityNo cancel fee | On-time71% |