$159+ Cheap flights from Seattle (SEA) to Massachusetts
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Massachusetts with Cheapflights
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 Seattle to MassachusettsExplore the most affordable flight options available from Seattle to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
Explore the most affordable flight options available from Seattle to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am -
1 stop9h 19m
Tue 10/137:23 pm -
1 stop8h 13m
Deal found 9/1![American Airlines logo]()
$317
This lol.travel deal was found by Cheapflights users on 8/30. 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 lol.travel 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 8/30![JetBlue logo]()
$321
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/2911:05 pm -
1 stop9h 30m
Tue 10/612:45 pm -
2 stops12h 55m
Deal found 8/31![Southwest logo]()
$322
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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
Tue 10/137:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$324
This Super.com deal was found by Cheapflights users on 8/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:42 pm -
Nonstop5h 24m
Wed 9/237:20 pm -
Nonstop6h 17m
Deal found 8/30![JetBlue logo]()
$330
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/211:57 pm -
1 stop8h 33m
Mon 10/57:20 pm -
1 stop8h 16m
Deal found 8/31![American Airlines logo]()
$332
This JetBlue deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/611:41 pm -
Nonstop5h 21m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$333
This JetBlue deal was found by Cheapflights users on 8/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:42 pm -
Nonstop5h 24m
Sat 9/267:20 pm -
Nonstop6h 17m
Deal found 8/29![JetBlue logo]()
$334
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/2011:55 pm -
Nonstop5h 21m
Fri 10/237:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$336
This Flighttix deal was found by Cheapflights users on 8/29. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:54 pm -
1 stop9h 27m
Tue 10/207:20 pm -
Nonstop6h 22m
Deal found 8/29![Multiple Airlines logo]()
$342
This Travelocity deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:59 pm -
1 stop11h 22m
Tue 10/137:20 pm -
Nonstop6h 22m
Deal found 8/28![Multiple Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:24 am -
1 stop7h 14m
Fri 12/256:00 am -
1 stop8h 50m
Deal found 8/31![American Airlines logo]()
$347
Best flights from Seattle to MassachusettsDiscover carefully curated flight deals from Seattle to Massachusetts that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Seattle to Massachusetts that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This JetBlue deal was found by Cheapflights users on 8/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:42 pm -
Nonstop5h 24m
Sat 10/37:20 pm -
Nonstop6h 17m
Deal found 8/29![JetBlue logo]()
$333
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:10 am -
2 stops10h 20m
Thu 11/197:10 am -
1 stop8h 40m
Deal found 8/31![Southwest logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 10/610:20 am -
1 stop16h 01m
Wed 10/146:40 pm -
Nonstop6h 19m
Deal found 9/1![Alaska Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:24 am -
1 stop10h 09m
Tue 9/292:52 pm -
1 stop11h 05m
Deal found 8/28![American Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Fri 9/186:15 pm -
1 stop8h 44m
Tue 9/2210:38 am -
1 stop8h 29m
Deal found 8/30![United Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 8/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:45 am -
Nonstop5h 16m
Tue 11/173:45 pm -
Nonstop6h 21m
Deal found 8/29![Delta logo]()
$427
This JetBlue deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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.
Sun 10/1111:55 pm -
Nonstop5h 21m
Sat 10/177:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$345
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:20 am -
2 stops10h 15m
Wed 9/305:25 am -
2 stops10h 40m
Deal found 9/1![Southwest logo]()
$387
This Expedia deal was found by Cheapflights users on 8/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:42 pm -
1 stop8h 40m
Sat 10/312:10 pm -
2 stops12h 49m
Deal found 8/29![Multiple Airlines logo]()
$794
This Alaska Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:36 pm -
Nonstop5h 22m
Mon 11/166:09 pm -
1 stop19h 44m
Deal found 8/31![Alaska Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Wed 9/3011:14 pm -
1 stop7h 23m
Wed 10/710:33 am -
2 stops11h 19m
Deal found 9/1![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 8/29. 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 11/117:45 am -
2 stops12h 55m
Mon 11/161:20 pm -
2 stops13h 10m
Deal found 8/29![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/1511:10 pm -
Nonstop5h 25m
Thu 10/2210:50 am -
Nonstop6h 22m
Deal found 8/31![Delta logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Thu 12/107:59 pm -
1 stop18h 31m
Tue 12/159:20 am -
Nonstop6h 20m
Deal found 8/30![Alaska Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:30 am -
1 stop6h 40m
Sun 12/61:20 pm -
2 stops12h 40m
Deal found 9/1![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 11/1010:50 am -
1 stop7h 43m
Wed 11/116:00 am -
1 stop9h 19m
Deal found 9/1![United Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/711:50 pm -
1 stop8h 00m
Wed 10/147:15 pm -
1 stop7h 44m
Deal found 8/28![Delta logo]()
$477
This Southwest deal was found by Cheapflights users on 8/30. 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.
Tue 9/227:10 am -
2 stops11h 15m
Fri 9/256:05 pm -
1 stop8h 50m
Deal found 8/30![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 1/308:00 am -
1 stop7h 31m
Wed 2/35:04 pm -
1 stop8h 35m
Deal found 8/31![United Airlines logo]()
$485
This Southwest deal was found by Cheapflights users on 8/30. 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.
Tue 9/226:40 am -
2 stops10h 30m
Thu 9/246:05 pm -
1 stop8h 50m
Deal found 8/30![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 8/30. 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 10/216:05 pm -
2 stops12h 32m
Wed 10/286:00 am -
2 stops10h 54m
Deal found 8/30![United Airlines logo]()
$495
This Priceline deal was found by Cheapflights users on 8/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:42 pm -
1 stop8h 40m
Sat 10/311:25 am -
1 stop12h 19m
Deal found 8/29![JetBlue logo]()
$608
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:05 pm -
1 stop8h 40m
Sun 9/275:30 am -
1 stop8h 10m
Deal found 9/1![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 8/30. 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 10/217:25 pm -
2 stops12h 24m
Sat 10/316:00 am -
2 stops11h 39m
Deal found 8/30![United Airlines logo]()
$495
This Southwest deal was found by Cheapflights users on 8/29. 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 11/235:30 am -
1 stop13h 20m
Tue 12/112:50 pm -
2 stops12h 25m
Deal found 8/29![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 8/29. 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.
Sat 9/196:50 am -
2 stops10h 05m
Sat 9/265:30 am -
2 stops10h 40m
Deal found 8/29![Southwest logo]()
$422
This KAYAK deal was found by Cheapflights users on 8/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:54 pm -
2 stops12h 34m
Thu 10/294:20 pm -
1 stop8h 39m
Deal found 8/29![Multiple Airlines logo]()
$899
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 12/2312:15 am -
2 stops11h 15m
Fri 12/257:50 am -
2 stops13h 00m
Deal found 8/31![Southwest logo]()
$427
This KAYAK deal was found by Cheapflights users on 8/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:59 pm -
2 stops14h 29m
Wed 10/284:20 pm -
1 stop8h 39m
Deal found 8/29![Multiple Airlines logo]()
$899
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/166:50 pm -
2 stops10h 55m
Sun 10/185:00 am -
1 stop8h 30m
Deal found 8/31![Southwest logo]()
$442
Last-minute flights from Seattle to MassachusettsDiscover last-minute flight deals from Seattle to Massachusetts. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Massachusetts. Data last updated September 2, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:42 pm -
Nonstop5h 24m
Wed 9/237:20 pm -
Nonstop6h 17m
Deal found 8/30![JetBlue logo]()
$330
This JetBlue deal was found by Cheapflights users on 8/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:42 pm -
Nonstop5h 24m
Sat 9/267:20 pm -
Nonstop6h 17m
Deal found 8/29![JetBlue logo]()
$334
This lol.travel deal was found by Cheapflights users on 8/30. 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 lol.travel 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 8/30![JetBlue logo]()
$321
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/2911:05 pm -
1 stop9h 30m
Tue 10/612:45 pm -
2 stops12h 55m
Deal found 8/31![Southwest logo]()
$322
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/211:57 pm -
1 stop8h 33m
Mon 10/57:20 pm -
1 stop8h 16m
Deal found 8/31![American Airlines logo]()
$332
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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
Tue 10/137:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$324
This JetBlue deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/611:41 pm -
Nonstop5h 21m
Wed 10/147:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$333
This Travelocity deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:59 pm -
1 stop11h 22m
Tue 10/137:20 pm -
Nonstop6h 22m
Deal found 8/28![Multiple Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am -
1 stop9h 19m
Tue 10/137:23 pm -
1 stop8h 13m
Deal found 9/1![American Airlines logo]()
$317
This Flighttix deal was found by Cheapflights users on 8/29. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:54 pm -
1 stop9h 27m
Tue 10/207:20 pm -
Nonstop6h 22m
Deal found 8/29![Multiple Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 10/166:50 pm -
2 stops10h 55m
Mon 10/197:15 pm -
1 stop8h 25m
Deal found 8/31![Southwest logo]()
$352
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 10/2011:55 pm -
Nonstop5h 21m
Fri 10/237:20 pm -
Nonstop6h 22m
Deal found 8/28![JetBlue logo]()
$336
One-way flights from Seattle to MassachusettsSearch for one-way flight options from Seattle to Massachusetts. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Seattle to Massachusetts. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:05 pm -
1 stop9h 30m
Deal found 9/1![Southwest logo]()
$159
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:10 am -
2 stops11h 00m
Deal found 9/1![Southwest logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 10/278:09 pm -
2 stops24h 15m
Deal found 9/1![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:09 pm -
2 stops24h 15m
Deal found 8/28![Multiple Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:15 pm -
1 stop6h 39m
Deal found 8/31![Delta logo]()
$188
This Cheapflightsfares deal was found by Cheapflights users on 8/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:42 pm -
Nonstop5h 24m
Deal found 8/29![JetBlue logo]()
$192
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/305:20 am -
2 stops9h 05m
Deal found 8/31![Southwest logo]()
$193
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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 9/217:25 pm -
2 stops11h 30m
Deal found 8/28![Southwest logo]()
$194
This iWofly 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:55 pm -
Nonstop5h 21m
Deal found 9/2![JetBlue logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” 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.
Mon 11/28:09 pm -
2 stops24h 22m
Deal found 8/28![Multiple Airlines logo]()
$196
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Thu 10/810:48 pm -
1 stop7h 56m
Deal found 9/1![United Airlines logo]()
$196
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Sun 10/46:05 pm -
1 stop8h 55m
Deal found 9/1![United Airlines logo]()
$198
Find flight deals from Seattle to Massachusetts
Keep the following information in mind while searching for Seattle to Massachusetts flight deals. Data was last updated September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (American Airlines) |
One-way from | $159 (Southwest) |
Popular in | December |
Cheapest in | October |
Average price | $365 |
Good round-trip deal | $407 or less |
Good one-way deal | $271 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Massachusetts 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 2, 2026.
Use the filters below to find and compare flights from Seattle to Massachusetts that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Tue 9/29
11:42 pm-8:06 am
Nonstop5h 24m
Boston Logan Intl
Sat 10/3
7:20 pm-10:37 pm
Nonstop6h 17m
$333
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Sun 10/11
11:55 pm-8:16 am
Nonstop5h 21m
Boston Logan Intl
Sat 10/17
7:20 pm-10:42 pm
Nonstop6h 22m
$345
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Sun 11/15
9:10 am-10:30 pm
2 stops10h 20m
Boston Logan Intl
Thu 11/19
7:10 am-12:50 pm
1 stop8h 40m
$382
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Wed 9/23
5:20 am-6:35 pm
2 stops10h 15m
Boston Logan Intl
Wed 9/30
5:25 am-1:05 pm
2 stops10h 40m
$387
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Wed 11/11
7:45 am-11:40 pm
2 stops12h 55m
Boston Logan Intl
Mon 11/16
1:20 pm-11:30 pm
2 stops13h 10m
$387
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Tue 10/6
10:20 am-5:21 am
1 stop16h 01m
Boston Logan Intl
Wed 10/14
6:40 pm-9:59 pm
Nonstop6h 19m
$390
SeattleAlbany
SEA Seattle/Tacoma Intl - ALB Albany Intl
SEAALB
Seattle/Tacoma Intl
Wed 12/2
6:30 am-4:10 pm
1 stop6h 40m
Albany Intl
Sun 12/6
1:20 pm-11:00 pm
2 stops12h 40m
$397
SeattleAlbany
SEA Seattle/Tacoma Intl - ALB Albany Intl
SEAALB
Seattle/Tacoma Intl
Wed 9/23
8:24 am-9:33 pm
1 stop10h 09m
Albany Intl
Tue 9/29
2:52 pm-10:57 pm
1 stop11h 05m
$407
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Thu 11/12
3:36 pm-11:58 pm
Nonstop5h 22m
Boston Logan Intl
Mon 11/16
6:09 pm-10:53 am
1 stop19h 44m
$408
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Thu 12/10
7:59 pm-5:30 pm
1 stop18h 31m
Boston Logan Intl
Tue 12/15
9:20 am-12:40 pm
Nonstop6h 20m
$408
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to Massachusetts
Have a flexible travel schedule? Discover the best time to fly to Massachusetts from Seattle with our price prediction graph.
SEA-ALB
SEA-BDL
SEA-BOS
SEA-ACK
SEA-PVC
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 Seattle to Massachusetts
SEA-USMA
SEA-ALB
SEA-BDL
SEA-BOS
SEA-ACK
What is the cheapest month to book a flight from Seattle to Massachusetts?
Currently, October is the cheapest month in which you can book a flight from Seattle to Massachusetts (average of $357). Flying from Seattle to Massachusetts in December is currently the most expensive (average of $540). 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 SEA to MA?
Find hourly flight availability from Seattle to Massachusetts. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 2, 2026.
A simple way to save on the total cost of your ticket is to fly from Seattle to Massachusetts at noon. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.
Weekly flight availability from Seattle to Massachusetts
Explore weekly flight availability from Seattle to Massachusetts. 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 2, 2026.
The most flights from SEA to USMA are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Seattle to Massachusetts?
Airfare is typical for this route at the moment.
Seattle to Massachusetts flights typically cost between $309 and $482 in September.The cheapest round-trip price found within the last 5 days was $321 on JetBlue (Sep 26-Oct 3).
How far ahead should I book a flight from Seattle to Massachusetts?
The price you pay for your flight from Seattle to Massachusetts may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Seattle to Massachusetts?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Massachusetts. Price data was last updated on August 29, 2026.
Travelers seeking maximum savings on their Seattle to Massachusetts flight should consider departing on Thursday 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.
Reviews of airlines servicing Massachusetts
Get insights into the airlines that provide service to Massachusetts. 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 Massachusetts. Reviews last updated September 2, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Seattle to Massachusetts by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Massachusetts. 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 Seattle to Massachusetts
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Complete your trip
Complete your trip to Massachusetts by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Massachusetts by cabin class
Find flights from Seattle to Massachusetts, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Massachusetts flights
Browse other Seattle and Massachusetts flight options. Last updated on September 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Massachusetts flights
Consider these flights traveling from Seattle to Massachusetts.
Top 8 airlines flying from Seattle to Massachusetts
Discover the top 8 airlines that operate flights from Seattle to Massachusetts. 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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$333 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$167 | Average$413 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$440 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$447 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$220 | Average$372 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$233 | Average$457 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$237 | Average$475 | FlexibilityNo cancel fee | On-time75% |