$179+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
Nov 3 — Nov 101
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Washington with Cheapflights
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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 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 4, 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 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:20 pm -
Nonstop6h 22m
Sun 10/1811:55 pm -
Nonstop5h 21m
Deal found 9/30![JetBlue logo]()
$328
This Expedia deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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.
Fri 10/236:40 pm -
Nonstop6h 19m
Sat 10/247:04 am -
1 stop19h 17m
Deal found 9/30![Alaska Airlines logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/79:03 am -
Nonstop6h 24m
Sat 11/73:58 pm -
1 stop10h 48m
Deal found 10/3![Alaska Airlines logo]()
$333
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:20 pm -
Nonstop6h 22m
Thu 10/2211:55 pm -
Nonstop5h 21m
Deal found 10/2![JetBlue logo]()
$335
This JetBlue deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:20 pm -
Nonstop6h 22m
Wed 10/2111:55 pm -
Nonstop5h 21m
Deal found 10/1![JetBlue logo]()
$337
This Kissandfly.com deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/156:40 pm -
Nonstop6h 19m
Wed 10/216:05 pm -
2 stops12h 39m
Deal found 10/1![Multiple Airlines logo]()
$345
This JetBlue deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:20 pm -
Nonstop6h 22m
Sat 10/2410:15 pm -
1 stop9h 26m
Deal found 9/30![JetBlue logo]()
$347
This Expedia deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 11/47:03 am -
1 stop18h 52m
Mon 11/98:33 am -
1 stop29h 08m
Deal found 10/1![Alaska Airlines logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 11/66:20 pm -
1 stop8h 39m
Mon 11/97:03 am -
1 stop30h 38m
Deal found 10/1![Alaska Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/246:00 am -
1 stop8h 24m
Mon 10/267:00 am -
1 stop11h 24m
Deal found 10/1![United Airlines logo]()
$377
This Expedia deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/117:03 am -
1 stop18h 52m
Mon 11/1612:54 pm -
1 stop23h 36m
Deal found 10/2![Alaska Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/2811:55 am -
2 stops12h 16m
Wed 11/41:49 pm -
1 stop7h 01m
Deal found 9/29![United Airlines logo]()
$382
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 4, 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 4, 2026.
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/302:35 pm -
2 stops13h 05m
Sat 11/71:05 pm -
2 stops16h 00m
Deal found 9/30![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/206:05 am -
1 stop8h 44m
Mon 11/239:33 am -
1 stop9h 17m
Deal found 9/30![Delta logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/117:03 am -
1 stop18h 52m
Sat 11/148:33 am -
1 stop18h 13m
Deal found 9/29![Alaska Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 1/1011:45 am -
2 stops12h 24m
Sun 1/171:45 pm -
1 stop7h 10m
Deal found 9/29![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 1/295:05 am -
1 stop8h 10m
Mon 2/17:00 am -
1 stop6h 55m
Deal found 9/30![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/1910:40 am -
1 stop11h 17m
Wed 11/251:50 pm -
1 stop7h 07m
Deal found 10/3![Delta logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 1/276:14 pm -
1 stop29h 52m
Mon 2/89:00 am -
1 stop29h 03m
Deal found 9/29![Alaska Airlines logo]()
$403
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 1/309:40 am -
2 stops13h 25m
Mon 2/16:10 am -
2 stops11h 40m
Deal found 9/30![Southwest logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 1/276:14 pm -
1 stop29h 52m
Wed 2/39:00 am -
1 stop29h 03m
Deal found 9/29![Alaska Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 10/226:00 am -
1 stop8h 39m
Wed 10/285:00 am -
2 stops11h 14m
Deal found 10/2![United Airlines logo]()
$465
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 1/276:14 pm -
1 stop29h 52m
Tue 2/29:00 am -
1 stop29h 03m
Deal found 9/29![Alaska Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 12/256:15 pm -
Nonstop6h 27m
Fri 1/111:15 pm -
Nonstop5h 22m
Deal found 10/3![Delta logo]()
$447
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/281:15 pm -
2 stops11h 30m
Wed 11/46:40 am -
2 stops12h 05m
Deal found 9/29![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/279:00 am -
2 stops14h 58m
Tue 11/35:10 am -
1 stop7h 25m
Deal found 9/29![United Airlines logo]()
$476
This Delta deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/187:25 pm -
Nonstop6h 30m
Thu 12/33:45 pm -
Nonstop5h 17m
Deal found 10/2![Delta logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/46:13 pm -
1 stop30h 23m
Tue 12/87:00 am -
1 stop31h 09m
Deal found 9/29![Alaska Airlines logo]()
$413
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 12/1811:45 am -
2 stops11h 15m
Fri 12/256:10 am -
2 stops12h 30m
Deal found 9/30![Southwest logo]()
$436
This United Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/118:25 am -
2 stops15h 54m
Sat 11/149:05 am -
1 stop9h 19m
Deal found 10/2![United Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/26:42 pm -
Nonstop6h 23m
Thu 11/51:40 pm -
Nonstop5h 30m
Deal found 10/2![Delta logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/115:44 pm -
Nonstop6h 24m
Sat 11/145:19 pm -
1 stop9h 27m
Deal found 9/29![Alaska Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/279:12 am -
2 stops14h 35m
Tue 11/39:05 am -
1 stop9h 19m
Deal found 9/30![United Airlines logo]()
$488
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/241:10 pm -
2 stops11h 40m
Mon 12/286:00 pm -
2 stops11h 05m
Deal found 9/29![Southwest logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/227:03 am -
Nonstop6h 17m
Mon 10/269:08 pm -
1 stop16h 59m
Deal found 9/29![Alaska Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/266:05 am -
1 stop9h 14m
Wed 10/281:54 pm -
1 stop7h 26m
Deal found 10/1![Delta logo]()
$482
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/66:09 pm -
1 stop31h 46m
Sun 11/88:33 am -
1 stop29h 08m
Deal found 9/29![Alaska Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/186:05 am -
1 stop8h 36m
Mon 11/235:12 pm -
1 stop10h 08m
Deal found 10/2![Delta logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 12/16:13 pm -
1 stop18h 19m
Tue 12/88:09 pm -
1 stop18h 00m
Deal found 10/1![Alaska Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/56:42 pm -
1 stop8h 17m
Sun 11/85:20 am -
1 stop7h 40m
Deal found 9/30![Delta logo]()
$547
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 12/46:13 pm -
1 stop30h 23m
Thu 12/107:00 am -
1 stop31h 08m
Deal found 10/1![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 10/266:40 pm -
1 stop8h 15m
Wed 10/287:19 am -
1 stop19h 09m
Deal found 10/3![Alaska Airlines logo]()
$460
Last-minute flights from Boston to WashingtonDiscover last-minute flight deals from Boston to Washington. Data last updated October 4, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Washington. Data last updated October 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:20 pm -
Nonstop6h 22m
Sun 10/1811:55 pm -
Nonstop5h 21m
Deal found 9/30![JetBlue logo]()
$328
This JetBlue deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:20 pm -
Nonstop6h 22m
Wed 10/2111:55 pm -
Nonstop5h 21m
Deal found 10/1![JetBlue logo]()
$337
This Kissandfly.com deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/156:40 pm -
Nonstop6h 19m
Wed 10/216:05 pm -
2 stops12h 39m
Deal found 10/1![Multiple Airlines logo]()
$345
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:20 pm -
Nonstop6h 22m
Thu 10/2211:55 pm -
Nonstop5h 21m
Deal found 10/2![JetBlue logo]()
$335
This JetBlue deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:20 pm -
Nonstop6h 22m
Sat 10/2410:15 pm -
1 stop9h 26m
Deal found 9/30![JetBlue logo]()
$347
This Expedia deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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.
Fri 10/236:40 pm -
Nonstop6h 19m
Sat 10/247:04 am -
1 stop19h 17m
Deal found 9/30![Alaska Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/246:00 am -
1 stop8h 24m
Mon 10/267:00 am -
1 stop11h 24m
Deal found 10/1![United Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/2811:55 am -
2 stops12h 16m
Wed 11/41:49 pm -
1 stop7h 01m
Deal found 9/29![United Airlines logo]()
$382
This Expedia deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 11/47:03 am -
1 stop18h 52m
Mon 11/98:33 am -
1 stop29h 08m
Deal found 10/1![Alaska Airlines logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 11/66:20 pm -
1 stop8h 39m
Mon 11/97:03 am -
1 stop30h 38m
Deal found 10/1![Alaska Airlines logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/79:03 am -
Nonstop6h 24m
Sat 11/73:58 pm -
1 stop10h 48m
Deal found 10/3![Alaska Airlines logo]()
$333
This Expedia deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/117:03 am -
1 stop18h 52m
Mon 11/1612:54 pm -
1 stop23h 36m
Deal found 10/2![Alaska Airlines logo]()
$380
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 4, 2026.
Search for one-way flight options from Boston to Washington. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/2710:35 am -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Southwest logo]()
$179
This Expedia deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/174:33 pm -
1 stop22h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Alaska Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/2711:12 am -
2 stops34h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$186
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/167:10 am -
1 stop8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Southwest logo]()
$187
This Expedia deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 11/107:03 am -
1 stop18h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Alaska Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/283:05 pm -
1 stop9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/2310:20 am -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Southwest logo]()
$189
This Super.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:20 pm -
Nonstop6h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![JetBlue logo]()
$191
This Cheapflightsfares deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:20 pm -
Nonstop6h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![JetBlue logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/277:51 am -
1 stop13h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Alaska Airlines logo]()
$194
This Southwest deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 10/291:10 pm -
2 stops12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Southwest logo]()
$199
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/2612:55 pm -
2 stops14h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Southwest logo]()
$200
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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (Cheapflightsfares) |
One-way from | $179 (Southwest) |
Popular in | December |
Cheapest in | March |
Average price | $426 |
Good round-trip deal | $437 or less |
Good one-way deal | $257 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 4, 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
Tue 10/27
2:50 pm-11:55 pm
2 stops12h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$184
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sat 1/30
11:39 am-5:53 pm
1 stop9h 14m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Thu 10/29
9:00 am-4:27 pm
1 stop10h 27m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Thu 1/28
4:56 pm-10:35 pm
1 stop8h 39m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Fri 10/30
3:05 pm-9:11 pm
1 stop9h 06m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sat 10/31
6:00 am-3:25 pm
2 stops12h 25m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$199
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sun 11/1
6:00 am-12:29 pm
1 stop9h 29m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$205
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Wed 12/16
11:45 am-9:35 am
1 stop24h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$208
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Tue 11/24
8:15 am-9:10 pm
1 stop15h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$210
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sat 10/17
6:00 am-11:24 am
1 stop8h 24m
Spokane
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$221
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-BLI
BOS-ALW
BOS-PSC
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-BLI
BOS-ALW
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 $367). Flying from Boston to State of Washington in December is currently the most expensive (average of $543). 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 4, 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.
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 $346 and $505 in October.The cheapest round-trip price found within the last 5 days was $328 on JetBlue (Oct 15-Oct 18).
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 4, 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
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
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 4, 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$172 | Average$335 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$196 | Average$505 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$423 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$236 | Average$616 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$254 | Average$495 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$286 | Average$503 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$298 | Average$587 | FlexibilityNo cancel fee | On-time63% |