$167+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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1. Tell us where you want to go
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 September 7, 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 September 7, 2026.
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.
Tue 10/611:41 pm -
Nonstop5h 21m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$324
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.
Mon 10/1912:10 am -
1 stop8h 00m
Tue 11/31:10 pm -
2 stops12h 20m
Deal found 9/3![Southwest logo]()
$326
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.
Mon 10/1912:10 am -
2 stops11h 45m
Wed 10/282:50 pm -
2 stops10h 50m
Deal found 9/3![Southwest logo]()
$331
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:55 pm -
Nonstop5h 21m
Tue 10/207:20 pm -
Nonstop6h 22m
Deal found 9/5![JetBlue logo]()
$332
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.
Wed 9/3011:42 pm -
Nonstop5h 24m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$333
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:42 pm -
Nonstop5h 24m
Sat 10/37:20 pm -
Nonstop6h 17m
Deal found 9/3![JetBlue logo]()
$334
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 10/211:42 pm -
Nonstop5h 24m
Sat 10/107:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$336
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:44 pm -
Nonstop5h 28m
Wed 10/284:46 pm -
Nonstop6h 14m
Deal found 9/6![Alaska Airlines logo]()
$340
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.
Wed 11/116:10 am -
1 stop7h 40m
Mon 11/161:20 pm -
2 stops13h 10m
Deal found 9/3![Southwest logo]()
$342
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.
Wed 10/217:02 am -
1 stop7h 35m
Sat 10/2410:36 am -
1 stop8h 20m
Deal found 9/3![United Airlines logo]()
$343
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:59 pm -
1 stop11h 22m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![Multiple Airlines logo]()
$343
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.
Sun 10/1811:55 pm -
Nonstop5h 21m
Tue 10/207:20 pm -
Nonstop6h 22m
Deal found 9/3![JetBlue logo]()
$344
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 September 7, 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 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.
Wed 9/3011:42 pm -
Nonstop5h 24m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$333
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.
Wed 12/26:10 am -
1 stop7h 40m
Wed 12/94:40 pm -
1 stop8h 50m
Deal found 9/5![Southwest logo]()
$353
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.
Fri 10/22:27 pm -
1 stop7h 27m
Tue 10/69:23 am -
1 stop9h 33m
Deal found 9/4![United Airlines logo]()
$377
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:04 pm -
1 stop10h 26m
Wed 10/216:05 am -
1 stop9h 14m
Deal found 9/3![Delta logo]()
$381
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.
Mon 12/219:50 pm -
Nonstop5h 30m
Tue 1/54:56 pm -
Nonstop6h 25m
Deal found 9/5![Alaska Airlines logo]()
$407
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:30 am -
2 stops10h 46m
Wed 9/308:33 am -
1 stop7h 46m
Deal found 9/2![American Airlines logo]()
$472
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.
Thu 11/127:00 pm -
2 stops10h 05m
Sun 11/155:00 am -
1 stop8h 40m
Deal found 9/3![Southwest logo]()
$375
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.
Sat 10/245:00 am -
1 stop8h 13m
Wed 10/286:00 am -
2 stops12h 25m
Deal found 9/4![United Airlines logo]()
$392
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 10/1712:42 pm -
2 stops13h 39m
Wed 10/217:03 am -
1 stop10h 37m
Deal found 9/6![Alaska Airlines logo]()
$408
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.
Sun 10/187:25 pm -
1 stop9h 10m
Wed 10/217:55 am -
1 stop9h 55m
Deal found 9/4![Delta logo]()
$413
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/3011:35 pm -
2 stops9h 55m
Sun 11/85:00 am -
1 stop8h 40m
Deal found 9/7![Southwest logo]()
$382
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.
Sun 10/189:44 pm -
Nonstop5h 28m
Sat 10/317:51 am -
1 stop12h 00m
Deal found 9/6![Alaska Airlines logo]()
$417
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 10/1712:10 am -
1 stop8h 00m
Sat 10/241:55 pm -
2 stops10h 50m
Deal found 9/6![Southwest logo]()
$385
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.
Fri 9/251:00 pm -
1 stop8h 29m
Sat 10/311:44 am -
1 stop10h 31m
Deal found 9/6![Delta logo]()
$430
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:34 pm -
1 stop11h 11m
Wed 10/216:30 am -
1 stop11h 30m
Deal found 9/6![American Airlines logo]()
$481
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.
Wed 10/289:03 am -
1 stop17h 25m
Sun 11/19:03 am -
Nonstop6h 20m
Deal found 9/6![Alaska Airlines logo]()
$417
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 11/47:45 am -
2 stops11h 45m
Mon 11/910:20 am -
1 stop11h 55m
Deal found 9/4![Southwest logo]()
$385
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 11/107:00 am -
1 stop9h 19m
Wed 11/119:00 am -
2 stops12h 41m
Deal found 9/3![United Airlines logo]()
$482
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:10 pm -
Nonstop5h 25m
Mon 10/267:25 pm -
Nonstop6h 24m
Deal found 9/5![Delta logo]()
$447
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 11/67:58 pm -
1 stop8h 22m
Sat 11/147:13 am -
Nonstop6h 26m
Deal found 9/6![Alaska Airlines logo]()
$417
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.
Wed 11/256:15 am -
1 stop10h 05m
Wed 12/24:40 pm -
1 stop8h 50m
Deal found 9/2![Southwest logo]()
$388
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 2/2510:59 pm -
2 stops13h 26m
Mon 3/11:30 pm -
2 stops12h 42m
Deal found 9/3![United Airlines logo]()
$497
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.
Wed 10/712:42 pm -
1 stop8h 16m
Sat 10/107:55 am -
1 stop9h 55m
Deal found 9/6![Delta logo]()
$455
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.
Tue 10/204:41 pm -
1 stop11h 45m
Tue 11/39:03 am -
2 stops15h 26m
Deal found 9/6![Alaska Airlines logo]()
$420
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.
Wed 11/116:10 am -
2 stops12h 40m
Sun 11/1512:55 pm -
2 stops13h 05m
Deal found 9/2![Southwest logo]()
$399
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:42 pm -
1 stop8h 16m
Sat 10/107:55 am -
1 stop9h 55m
Deal found 9/5![Delta logo]()
$455
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.
Mon 12/2111:59 pm -
1 stop7h 18m
Tue 1/57:15 am -
2 stops14h 24m
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.
Tue 11/109:20 pm -
Nonstop5h 20m
Sat 11/149:03 am -
Nonstop6h 24m
Deal found 9/4![Alaska Airlines logo]()
$427
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.
Tue 10/612:10 am -
2 stops11h 45m
Wed 10/145:25 am -
1 stop11h 55m
Deal found 9/6![Southwest logo]()
$418
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.
Wed 10/72:27 pm -
1 stop7h 27m
Sun 10/116:00 am -
1 stop8h 33m
Deal found 9/6![United Airlines logo]()
$513
Last-minute flights from Washington to BostonDiscover last-minute flight deals from Washington to Boston. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Boston. Data last updated September 7, 2026 and is based on user searches.
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 9/2611:42 pm -
Nonstop5h 24m
Sat 10/37:20 pm -
Nonstop6h 17m
Deal found 9/2![JetBlue logo]()
$334
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.
Wed 9/3011:42 pm -
Nonstop5h 24m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$333
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 10/211:42 pm -
Nonstop5h 24m
Sat 10/107:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$336
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.
Fri 10/211:42 pm -
Nonstop5h 24m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$345
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.
Tue 10/611:41 pm -
Nonstop5h 21m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![JetBlue logo]()
$324
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:59 pm -
1 stop11h 22m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 9/2![Multiple Airlines logo]()
$343
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:55 pm -
Nonstop5h 21m
Tue 10/207:20 pm -
Nonstop6h 22m
Deal found 9/5![JetBlue logo]()
$332
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.
Sun 10/1811:55 pm -
Nonstop5h 21m
Tue 10/207:20 pm -
Nonstop6h 22m
Deal found 9/3![JetBlue logo]()
$344
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.
Mon 10/1912:10 am -
1 stop8h 00m
Tue 11/31:10 pm -
2 stops12h 20m
Deal found 9/3![Southwest logo]()
$326
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.
Mon 10/1912:10 am -
2 stops11h 45m
Wed 10/282:50 pm -
2 stops10h 50m
Deal found 9/3![Southwest logo]()
$331
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:44 pm -
Nonstop5h 28m
Wed 10/284:46 pm -
Nonstop6h 14m
Deal found 9/6![Alaska Airlines logo]()
$340
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.
Wed 10/217:02 am -
1 stop7h 35m
Sat 10/2410:36 am -
1 stop8h 20m
Deal found 9/3![United Airlines logo]()
$343
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 September 7, 2026.
Search for one-way flight options from Washington to Boston. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
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 10/317:00 am -
1 stop11h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$167
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.
Mon 10/2611:35 pm -
1 stop8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$172
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 11/1311:20 am -
2 stops9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$177
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 10/62:53 pm -
1 stop11h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$180
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.
Wed 3/37:00 am -
Nonstop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$184
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 10/26:00 am -
1 stop11h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$184
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:30 pm -
1 stop9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$188
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 9/2911:30 pm -
1 stop8h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$189
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.
Sat 9/2612:38 pm -
1 stop9h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$189
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.
Sat 10/32:53 pm -
1 stop11h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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.
Sat 11/74:27 pm -
2 stops15h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$193
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.
Wed 11/410:15 am -
2 stops10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Southwest logo]()
$194
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $324 (Cheapflightsfares) |
One-way from | $167 (United Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $372 |
Good round-trip deal | $406 or less |
Good one-way deal | $274 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 September 7, 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
PortlandBoston
PDX Portland - BOS Boston Logan Intl
PDXBOS
Portland
Wed 3/3
7:00 am-3:27 pm
Nonstop5h 27m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Fri 10/2
6:00 am-8:57 pm
1 stop11h 57m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
PortlandBoston
PDX Portland - BOS Boston Logan Intl
PDXBOS
Portland
Tue 10/6
9:44 pm-6:12 am
Nonstop5h 28m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Tue 10/6
1:38 pm-11:59 pm
1 stop7h 21m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
PortlandBoston
PDX Portland - BOS Boston Logan Intl
PDXBOS
Portland
Mon 10/5
11:35 pm-12:30 pm
1 stop9h 55m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$189
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Sat 9/26
12:38 pm-1:17 am
1 stop9h 39m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$189
PortlandBoston
PDX Portland - BOS Boston Logan Intl
PDXBOS
Portland
Tue 11/3
10:47 am-11:35 pm
1 stop9h 48m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$189
PortlandBoston
PDX Portland - BOS Boston Logan Intl
PDXBOS
Portland
Thu 10/1
10:58 am-10:45 pm
1 stop8h 47m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$189
PortlandBoston
PDX Portland - BOS Boston Logan Intl
PDXBOS
Portland
Thu 10/22
2:27 pm-12:54 am
1 stop7h 27m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$189
SpokaneBoston
GEG Spokane - BOS Boston Logan Intl
GEGBOS
Spokane
Sat 9/26
5:00 am-7:22 pm
2 stops11h 22m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$189
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.
SEA-BOS
PDX-BOS
GEG-BOS
PSC-BOS
BLI-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
SEA-BOS
PDX-BOS
GEG-BOS
PSC-BOS
What is the cheapest month to book a flight from State of Washington to Boston?
Currently, September is the cheapest month in which you can book a flight from State of Washington to Boston (average of $380). Flying from State of Washington to Boston in December is currently the most expensive (average of $548). 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 September 7, 2026.
Unlike in the morning, 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 at noon.
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 September 7, 2026.
The most flights from USWA to BOS are scheduled on a Saturday (27 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from State of Washington to Boston?
Airfare is typical for this route at the moment.
State of Washington to Boston flights typically cost between $319 and $489 in October.The cheapest round-trip price found within the last 5 days was $324 on JetBlue (Oct 6-Oct 14).
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 September 5, 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 mornings 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
Seekonk
Dedham
Cranston
Warwick
Pawtucket
Peabody
Auburn
Revere
York Beach
Londonderry
Fitchburg
North Falmouth
Swansea
Chelsea
Braintree
Browse thousands of different options on Cheapflights for your next trip
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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 September 7, 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 September 7, 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 8 airlines flying from Washington to Boston
Discover the top 8 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$177 | Average$384 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$183 | Average$546 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$190 | Average$478 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$198 | Average$337 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$206 | Average$494 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$220 | Average$404 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$233 | Average$457 | FlexibilityNo cancel fee | On-time83% |