$172+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
Oct 7 — Oct 141
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 September 7, 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 September 7, 2026.
This flygcity.se deal was found by Cheapflights users on 9/2. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
Nonstop6h 17m
Sat 10/311:42 pm -
Nonstop5h 24m
Deal found 9/2![JetBlue logo]()
$314
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:29 pm -
1 stop8h 34m
Sat 10/319:05 am -
1 stop9h 19m
Deal found 9/3![United Airlines logo]()
$316
This Booking.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:14 pm -
1 stop18h 14m
Fri 10/303:32 pm -
Nonstop5h 27m
Deal found 9/4![Alaska Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:45 am -
1 stop9h 42m
Tue 11/175:05 am -
1 stop7h 30m
Deal found 9/3![United Airlines logo]()
$321
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
Nonstop6h 17m
Tue 9/2911:42 pm -
Nonstop5h 24m
Deal found 9/2![JetBlue logo]()
$322
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:50 pm -
2 stops10h 50m
Sat 10/316:15 am -
1 stop7h 50m
Deal found 9/3![Southwest logo]()
$326
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 10/67:03 am -
Nonstop6h 17m
Tue 10/611:31 am -
1 stop14h 50m
Deal found 9/4![Alaska Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:45 am -
1 stop9h 37m
Tue 9/2911:14 pm -
1 stop8h 18m
Deal found 9/3![United Airlines logo]()
$328
This Booking.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:51 am -
1 stop12h 00m
Wed 10/219:44 pm -
Nonstop5h 28m
Deal found 9/4![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:05 am -
1 stop9h 32m
Sun 11/811:30 pm -
1 stop6h 53m
Deal found 9/3![United Airlines logo]()
$343
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:50 pm -
1 stop10h 25m
Fri 10/305:20 am -
1 stop10h 30m
Deal found 9/3![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:55 pm -
1 stop8h 15m
Tue 10/278:45 pm -
2 stops15h 50m
Deal found 9/3![Southwest logo]()
$354
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 September 7, 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 September 7, 2026.
This JetBlue deal was found by Cheapflights users on 9/2. 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.
Sat 9/267:20 pm -
Nonstop6h 17m
Sat 10/311:42 pm -
Nonstop5h 24m
Deal found 9/2![JetBlue logo]()
$334
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:10 pm -
2 stops12h 20m
Fri 11/131:55 pm -
1 stop8h 15m
Deal found 9/3![Southwest logo]()
$342
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 10/2012:45 pm -
1 stop9h 07m
Fri 10/231:56 pm -
1 stop7h 58m
Deal found 9/2![United Airlines logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/237:51 am -
1 stop28h 37m
Tue 10/274:54 pm -
1 stop9h 34m
Deal found 9/6![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 10/163:47 pm -
1 stop11h 03m
Wed 10/215:10 am -
1 stop7h 50m
Deal found 9/2![Delta logo]()
$381
This KAYAK deal was found by Cheapflights users on 9/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:36 am -
1 stop11h 31m
Thu 9/1710:17 am -
1 stop11h 13m
Deal found 9/3![American Airlines logo]()
$450
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:50 pm -
1 stop10h 25m
Fri 10/305:20 am -
1 stop10h 30m
Deal found 9/3![Southwest logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:03 am -
1 stop8h 37m
Mon 11/164:39 pm -
1 stop10h 01m
Deal found 9/6![Alaska Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 9/2. 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.
Tue 11/246:05 am -
1 stop9h 14m
Tue 12/11:16 pm -
1 stop9h 00m
Deal found 9/2![Delta logo]()
$381
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 10/271:29 pm -
2 stops10h 42m
Sat 10/315:00 am -
2 stops9h 45m
Deal found 9/6![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 2/266:32 pm -
1 stop8h 46m
Thu 3/41:23 pm -
1 stop7h 36m
Deal found 9/5![Alaska Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/192:20 pm -
2 stops10h 55m
Mon 2/226:05 am -
1 stop7h 35m
Deal found 9/3![Southwest logo]()
$384
This Delta deal was found by Cheapflights users on 9/2. 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 10/710:50 am -
1 stop10h 55m
Sun 10/117:23 pm -
1 stop8h 02m
Deal found 9/2![Delta logo]()
$393
This JetBlue deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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.
Sat 9/267:20 pm -
Nonstop6h 17m
Wed 9/3011:42 pm -
Nonstop5h 24m
Deal found 9/6![JetBlue logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 1/66:28 pm -
1 stop8h 29m
Thu 1/75:47 pm -
1 stop8h 53m
Deal found 9/4![Alaska Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 11/612:45 pm -
2 stops11h 15m
Thu 11/127:00 pm -
2 stops10h 05m
Deal found 9/5![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:47 pm -
1 stop11h 03m
Mon 10/127:23 pm -
1 stop8h 02m
Deal found 9/4![Delta logo]()
$401
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 11/1410:40 am -
1 stop8h 25m
Sat 11/215:30 pm -
2 stops11h 35m
Deal found 9/6![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 11/26:05 am -
1 stop9h 14m
Mon 11/161:08 pm -
1 stop9h 05m
Deal found 9/6![Delta logo]()
$401
This United Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 11/177:31 am -
2 stops10h 49m
Wed 12/28:45 am -
1 stop8h 29m
Deal found 9/4![United Airlines logo]()
$492
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 11/175:44 pm -
Nonstop6h 24m
Sat 11/213:40 pm -
Nonstop5h 19m
Deal found 9/3![Alaska Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 12/35:30 am -
2 stops10h 05m
Sun 12/66:20 am -
1 stop7h 05m
Deal found 9/4![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 12/36:00 am -
2 stops11h 36m
Sun 12/67:01 am -
1 stop11h 23m
Deal found 9/5![United Airlines logo]()
$512
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 11/187:13 am -
Nonstop6h 26m
Wed 12/28:21 am -
Nonstop5h 25m
Deal found 9/4![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:47 pm -
Nonstop6h 18m
Sun 10/117:24 am -
Nonstop5h 36m
Deal found 9/4![Delta logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:03 am -
Nonstop6h 17m
Tue 11/33:36 pm -
Nonstop5h 22m
Deal found 9/2![Alaska Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/129:30 am -
2 stops13h 30m
Tue 12/296:30 pm -
2 stops10h 35m
Deal found 9/3![Southwest logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 10/237:51 am -
1 stop28h 40m
Fri 10/309:44 pm -
Nonstop5h 28m
Deal found 9/3![Alaska Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 10/132:50 pm -
2 stops11h 20m
Mon 10/1911:35 pm -
1 stop8h 35m
Deal found 9/4![Southwest logo]()
$442
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 11/1312:00 pm -
2 stops11h 58m
Tue 11/175:10 am -
2 stops13h 49m
Deal found 9/2![United Airlines logo]()
$601
Last-minute flights from Boston to WashingtonDiscover last-minute flight deals from Boston to Washington. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Washington. Data last updated September 7, 2026 and is based on user searches.
This flygcity.se deal was found by Cheapflights users on 9/2. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
Nonstop6h 17m
Sat 10/311:42 pm -
Nonstop5h 24m
Deal found 9/2![JetBlue logo]()
$314
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:45 am -
1 stop9h 37m
Tue 9/297:00 am -
1 stop7h 37m
Deal found 9/3![United Airlines logo]()
$321
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
Nonstop6h 17m
Tue 9/2911:42 pm -
Nonstop5h 24m
Deal found 9/2![JetBlue logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:45 am -
1 stop9h 37m
Tue 9/2911:14 pm -
1 stop8h 18m
Deal found 9/3![United Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:15 pm -
1 stop8h 55m
Wed 10/78:30 am -
1 stop7h 52m
Deal found 9/3![United Airlines logo]()
$360
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 10/67:03 am -
Nonstop6h 17m
Tue 10/611:31 am -
1 stop14h 50m
Deal found 9/4![Alaska Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:55 pm -
1 stop8h 15m
Tue 10/2711:35 pm -
1 stop9h 55m
Deal found 9/3![Southwest logo]()
$343
This Booking.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:51 am -
1 stop12h 00m
Wed 10/219:44 pm -
Nonstop5h 28m
Deal found 9/4![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:50 pm -
1 stop10h 25m
Fri 10/305:20 am -
1 stop10h 30m
Deal found 9/3![Southwest logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:29 pm -
1 stop8h 34m
Sat 10/319:05 am -
1 stop9h 19m
Deal found 9/3![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:50 pm -
2 stops10h 50m
Sat 10/316:15 am -
1 stop7h 50m
Deal found 9/3![Southwest logo]()
$326
This Booking.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:51 am -
1 stop18h 46m
Fri 10/307:18 am -
Nonstop5h 37m
Deal found 9/5![Alaska Airlines logo]()
$317
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 September 7, 2026.
Search for one-way flight options from Boston to Washington. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” 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 11/1410:40 am -
1 stop8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southwest logo]()
$172
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:17 pm -
1 stop9h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$172
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:20 pm -
Nonstop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![JetBlue logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:39 pm -
2 stops24h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$174
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:20 pm -
Nonstop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![JetBlue logo]()
$175
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
Fri 10/97:20 pm -
Nonstop6h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![JetBlue logo]()
$177
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” 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 11/41:20 pm -
2 stops11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$177
This KAYAK deal was found by Cheapflights users on 9/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:20 pm -
Nonstop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![JetBlue logo]()
$178
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/16:00 am -
1 stop9h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$179
This iWofly deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:03 am -
Nonstop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$181
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 9/265:30 am -
2 stops10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$182
This Trip.com deal was found by Cheapflights users on 9/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:33 pm -
Nonstop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$182
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (United Airlines) |
One-way from | $172 (Southwest) |
Popular in | December |
Cheapest in | March |
Average price | $410 |
Good round-trip deal | $418 or less |
Good one-way deal | $240 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 September 7, 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
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Fri 10/23
10:50 am-7:35 pm
1 stop11h 45m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$172
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Sat 11/7
8:00 am-7:10 pm
1 stop14h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$182
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Wed 11/4
7:03 am-4:56 pm
1 stop12h 53m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$184
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Tue 10/20
5:55 pm-11:10 pm
1 stop8h 15m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Wed 11/4
9:03 am-3:13 pm
1 stop9h 10m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Thu 10/29
5:50 am-2:20 pm
2 stops11h 30m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Fri 10/30
3:47 pm-9:56 pm
1 stop9h 09m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$199
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Sat 10/3
1:55 pm-9:25 pm
2 stops10h 30m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
BostonPortland
BOS Boston Logan Intl - PDX Portland
BOSPDX
Boston Logan Intl
Thu 12/3
10:40 am-6:58 pm
1 stop11h 18m
Portland
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$209
BostonSeattle
BOS Boston Logan Intl - SEA Seattle/Tacoma Intl
BOSSEA
Boston Logan Intl
Sun 9/27
7:55 am-11:13 am
Nonstop6h 18m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$214
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-PDX
BOS-GEG
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-PDX
BOS-GEG
BOS-PSC
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 $535). 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 September 7, 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 September 7, 2026.
The most flights from BOS to USWA are scheduled on a Sunday (35 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 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 $322 and $508 in October.The cheapest round-trip price found within the last 5 days was $316 on United Airlines (Oct 27-Oct 31).
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 September 7, 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.
Entertainment
7.0
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
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 September 7, 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 8 airlines flying from Boston to Washington
Discover the top 8 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$282 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$174 | Average$390 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$185 | Average$413 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$187 | Average$509 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$235 | Average$612 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$254 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$267 | Average$476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$298 | Average$590 | FlexibilityNo cancel fee | On-time63% |