$178+ Cheap flights from New Hampshire to Seattle (SEA)
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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
MHT ā SEA
Aug 22 ā Aug 291
Round-trip
1 adult, Economy
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Find cheap flights from New Hampshire to Seattle with Cheapflights
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Cheapest flights from New Hampshire to SeattleExplore the most affordable flight options available from New Hampshire to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
Explore the most affordable flight options available from New Hampshire to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 10/201:00 pm
BOS
- SEA
1 stop11h 15m
JetBlue
Tue 10/2011:55 pm
SEA
- BOS
Nonstop5h 24m
JetBlue
Deal found 7/21![JetBlue logo]()
$298
This JetBlue deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/82:45 pm
BOS
- SEA
1 stop9h 19m
JetBlue
Tue 9/811:44 pm
SEA
- BOS
Nonstop5h 16m
JetBlue
Deal found 7/21![JetBlue logo]()
$300
This Cheapflightsfares deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/2611:20 am
BOS
- SEA
1 stop12h 22m
JetBlue
Tue 10/1311:55 pm
SEA
- BOS
Nonstop5h 24m
JetBlue
Deal found 7/20![JetBlue logo]()
$302
This JetBlue deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/96:59 pm
BOS
- SEA
Nonstop6h 39m
JetBlue
Tue 10/2010:15 pm
SEA
- BOS
1 stop9h 31m
JetBlue
Deal found 7/20![JetBlue logo]()
$305
This SmartFares deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure SmartFares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/2912:44 pm
BOS
- SEA
1 stop11h 24m
JetBlue
Sat 9/511:40 pm
SEA
- BOS
Nonstop5h 19m
JetBlue
Deal found 7/20![JetBlue logo]()
$306
This Cheapflightsfares deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/1611:20 am
BOS
- SEA
1 stop12h 22m
JetBlue
Thu 9/2411:55 pm
SEA
- BOS
Nonstop5h 24m
JetBlue
Deal found 7/19![JetBlue logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/197:59 pm
BOS
- SEA
Nonstop6h 13m
Alaska Airlines
Sun 9/207:40 am
SEA
- BOS
1 stop19h 07m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$308
This Cheapflightsfares deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/911:20 am
BOS
- SEA
1 stop12h 22m
JetBlue
Fri 9/189:40 pm
SEA
- BOS
1 stop10h 06m
JetBlue
Deal found 7/21![JetBlue logo]()
$309
This JetBlue deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/82:45 pm
BOS
- SEA
1 stop9h 19m
JetBlue
Sun 9/2011:55 pm
SEA
- BOS
Nonstop5h 24m
JetBlue
Deal found 7/21![JetBlue logo]()
$310
This Cheapflightsfares deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 9/1711:20 am
BOS
- SEA
1 stop12h 22m
JetBlue
Tue 9/299:40 pm
SEA
- BOS
1 stop10h 06m
JetBlue
Deal found 7/19![JetBlue logo]()
$311
This Cheapflightsfares deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/2611:20 am
BOS
- SEA
1 stop12h 24m
JetBlue
Tue 9/2911:55 pm
SEA
- BOS
Nonstop5h 24m
JetBlue
Deal found 7/21![JetBlue logo]()
$312
This JetBlue deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/82:45 pm
BOS
- SEA
1 stop9h 19m
JetBlue
Mon 9/149:40 pm
SEA
- BOS
1 stop10h 06m
JetBlue
Deal found 7/20![JetBlue logo]()
$314
Best flights from New Hampshire to SeattleDiscover carefully curated flight deals from New Hampshire to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
Discover carefully curated flight deals from New Hampshire to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
This JetBlue deal was found by Cheapflights users on 7/22. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/2611:20 am
BOS
- SEA
1 stop12h 24m
JetBlue
Sun 10/411:42 pm
SEA
- BOS
Nonstop5h 24m
JetBlue
Deal found 7/22![JetBlue logo]()
$320
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/911:34 am
BOS
- SEA
1 stop9h 55m
United Airlines
Sun 9/2011:00 pm
SEA
- BOS
1 stop7h 33m
United Airlines
Deal found 7/23![United Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/16:45 pm
BOS
- SEA
Nonstop6h 35m
Delta
Wed 9/91:35 pm
SEA
- BOS
Nonstop5h 32m
Delta
Deal found 7/18![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/224:48 pm
BOS
- SEA
Nonstop6h 13m
Alaska Airlines
Sat 9/263:29 pm
SEA
- BOS
Nonstop5h 25m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 7/23. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/252:45 pm
BOS
- SEA
2 stops11h 20m
Southwest
Wed 9/211:00 pm
SEA
- BOS
2 stops12h 55m
Southwest
Deal found 7/23![Southwest logo]()
$347
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/196:09 pm
PWM
- SEA
1 stop8h 50m
American Airlines
Tue 8/2510:19 am
SEA
- PWM
1 stop9h 29m
American Airlines
Deal found 7/18![American Airlines logo]()
$404
This Expedia deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Expedia is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/223:45 pm
LEB
- SEA
1 stop10h 05m
Multiple Airlines
Mon 8/316:51 pm
SEA
- LEB
2 stops12h 11m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$614
This JetBlue deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/2912:44 pm
BOS
- SEA
1 stop11h 24m
JetBlue
Sat 9/511:40 pm
SEA
- BOS
Nonstop5h 19m
JetBlue
Deal found 7/18![JetBlue logo]()
$336
This Southwest deal was found by Cheapflights users on 7/22. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/153:20 pm
BOS
- SEA
2 stops10h 45m
Southwest
Tue 9/296:40 am
SEA
- BOS
2 stops11h 40m
Southwest
Deal found 7/22![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 10/210:50 am
BOS
- SEA
1 stop13h 15m
Southwest
Tue 10/66:15 am
SEA
- BOS
2 stops9h 20m
Southwest
Deal found 7/21![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/266:03 am
PWM
- SEA
1 stop8h 29m
United Airlines
Sat 8/295:00 am
SEA
- PWM
2 stops11h 17m
United Airlines
Deal found 7/19![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/54:07 pm
PWM
- SEA
1 stop11h 06m
American Airlines
Sun 9/135:30 am
SEA
- PWM
1 stop10h 16m
American Airlines
Deal found 7/18![American Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/93:20 pm
BOS
- SEA
2 stops10h 45m
Southwest
Sat 9/1911:00 pm
SEA
- BOS
2 stops10h 40m
Southwest
Deal found 7/18![Southwest logo]()
$357
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/203:06 pm
PWM
- SEA
1 stop10h 50m
American Airlines
Sun 8/235:15 am
SEA
- PWM
1 stop10h 12m
American Airlines
Deal found 7/18![American Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/206:00 am
PWM
- SEA
2 stops16h 05m
Delta
Wed 8/2611:59 pm
SEA
- PWM
1 stop7h 46m
Delta
Deal found 7/18![Delta logo]()
$461
This Southwest deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/92:45 pm
BOS
- SEA
2 stops11h 40m
Southwest
Sun 9/139:05 am
SEA
- BOS
1 stop12h 20m
Southwest
Deal found 7/21![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/52:46 pm
MHT
- SEA
1 stop8h 59m
United Airlines
Tue 9/810:58 pm
SEA
- MHT
2 stops12h 10m
United Airlines
Deal found 7/23![United Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/226:05 am
PWM
- SEA
1 stop11h 40m
Delta
Fri 8/285:30 am
SEA
- PWM
1 stop7h 31m
Delta
Deal found 7/21![Delta logo]()
$476
This Southwest deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 9/1811:15 am
BOS
- SEA
2 stops14h 40m
Southwest
Tue 9/226:40 am
SEA
- BOS
2 stops11h 40m
Southwest
Deal found 7/19![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/99:25 am
MHT
- SEA
2 stops12h 50m
United Airlines
Mon 9/1411:00 pm
SEA
- MHT
2 stops12h 08m
United Airlines
Deal found 7/20![United Airlines logo]()
$475
This Southwest deal was found by Cheapflights users on 7/23. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/93:20 pm
BOS
- SEA
2 stops10h 50m
Southwest
Sun 9/209:05 am
SEA
- BOS
1 stop12h 25m
Southwest
Deal found 7/23![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/292:46 pm
MHT
- SEA
2 stops10h 57m
United Airlines
Tue 9/111:00 pm
SEA
- MHT
2 stops12h 08m
United Airlines
Deal found 7/21![United Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/105:41 pm
MHT
- SEA
1 stop9h 18m
American Airlines
Fri 8/148:10 am
SEA
- MHT
1 stop10h 55m
American Airlines
Deal found 7/18![American Airlines logo]()
$538
This Southwest deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/186:15 pm
MHT
- SEA
1 stop8h 20m
Southwest
Tue 8/2511:05 pm
SEA
- MHT
1 stop9h 45m
Southwest
Deal found 7/19![Southwest logo]()
$381
This Southwest deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 10/275:20 am
MHT
- SEA
2 stops12h 00m
Southwest
Fri 10/3012:10 am
SEA
- MHT
2 stops9h 00m
Southwest
Deal found 7/18![Southwest logo]()
$391
This United Airlines deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/69:25 am
MHT
- SEA
2 stops12h 42m
United Airlines
Fri 9/1811:00 pm
SEA
- MHT
2 stops12h 08m
United Airlines
Deal found 7/20![United Airlines logo]()
$526
This Southwest deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/265:45 am
PWM
- SEA
2 stops12h 15m
Southwest
Sat 8/2911:00 pm
SEA
- PWM
2 stops10h 45m
Southwest
Deal found 7/19![Southwest logo]()
$414
This Southwest deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 9/1110:30 am
PWM
- SEA
2 stops10h 05m
Southwest
Sat 9/197:40 am
SEA
- PWM
2 stops10h 20m
Southwest
Deal found 7/19![Southwest logo]()
$419
This Southwest deal was found by Cheapflights users on 7/23. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/185:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Tue 8/257:30 pm
SEA
- PWM
2 stops11h 25m
Southwest
Deal found 7/23![Southwest logo]()
$427
This Southwest deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/1812:30 pm
MHT
- SEA
2 stops10h 55m
Southwest
Mon 8/2411:05 pm
SEA
- MHT
2 stops12h 15m
Southwest
Deal found 7/20![Southwest logo]()
$429
Last-minute flights from New Hampshire to SeattleDiscover last-minute flight deals from New Hampshire to Seattle. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to Seattle. Data last updated July 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/182:53 pm
PWM
- SEA
1 stop11h 27m
Delta
Thu 8/275:30 am
SEA
- PWM
1 stop7h 31m
Delta
Deal found 7/18![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/186:15 pm
MHT
- SEA
1 stop8h 20m
Southwest
Tue 8/2511:05 pm
SEA
- MHT
1 stop9h 45m
Southwest
Deal found 7/19![Southwest logo]()
$381
This United Airlines deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/195:01 pm
BOS
- SEA
1 stop8h 42m
United Airlines
Wed 8/266:15 pm
SEA
- BOS
1 stop8h 44m
United Airlines
Deal found 7/20![United Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/246:00 pm
BOS
- SEA
1 stop8h 44m
United Airlines
Sat 8/2910:58 pm
SEA
- BOS
1 stop7h 50m
United Airlines
Deal found 7/21![United Airlines logo]()
$310
This Cheapflightsfares deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/267:30 pm
BOS
- SEA
Nonstop6h 23m
JetBlue
Tue 9/159:40 pm
SEA
- BOS
1 stop10h 06m
JetBlue
Deal found 7/20![JetBlue logo]()
$302
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/263:06 pm
PWM
- SEA
1 stop10h 50m
American Airlines
Sat 8/2911:56 pm
SEA
- PWM
1 stop8h 42m
American Airlines
Deal found 7/18![American Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 7/18. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/266:03 am
PWM
- SEA
1 stop8h 29m
United Airlines
Sat 8/295:00 am
SEA
- PWM
2 stops11h 17m
United Airlines
Deal found 7/18![United Airlines logo]()
$370
This American Airlines deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/273:06 pm
PWM
- SEA
1 stop8h 52m
American Airlines
Thu 9/108:24 am
SEA
- PWM
1 stop10h 49m
American Airlines
Deal found 7/20![American Airlines logo]()
$381
This SmartFares deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure SmartFares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/2912:44 pm
BOS
- SEA
1 stop11h 24m
JetBlue
Sat 9/511:40 pm
SEA
- BOS
Nonstop5h 19m
JetBlue
Deal found 7/20![JetBlue logo]()
$306
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/293:20 pm
BOS
- SEA
1 stop10h 36m
American Airlines
Sun 9/69:58 pm
SEA
- BOS
1 stop7h 48m
American Airlines
Deal found 7/19![American Airlines logo]()
$314
This SmartFares deal was found by Cheapflights users on 7/22. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure SmartFares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/297:12 am
BOS
- SEA
Nonstop6h 13m
Alaska Airlines
Sat 9/56:51 pm
SEA
- BOS
1 stop8h 18m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$316
This Mytrip deal was found by Cheapflights users on 7/22. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Mytrip is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/317:12 am
BOS
- SEA
Nonstop6h 13m
Alaska Airlines
Mon 8/312:18 pm
SEA
- BOS
1 stop12h 31m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$319
One-way flights from New Hampshire to SeattleSearch for one-way flight options from New Hampshire to Seattle. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
Search for one-way flight options from New Hampshire to Seattle. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This American Airlines deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/276:00 am
MHT
- SEA
1 stop8h 50m
American Airlines
Deal found 7/21![American Airlines logo]()
$178
This deal was found by Cheapflights users on 7/22. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 8/282:45 pm
PWM
- SEA
1 stop9h 23m
JetBlue
Deal found 7/22![JetBlue logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/247:00 am
PWM
- SEA
3 stops53h 19m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$182
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/272:46 pm
MHT
- SEA
2 stops10h 57m
United Airlines
Deal found 7/21![United Airlines logo]()
$183
This United Airlines deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/296:03 am
PWM
- SEA
1 stop8h 29m
United Airlines
Deal found 7/20![United Airlines logo]()
$183
This Southwest deal was found by Cheapflights users on 7/23. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 10/141:15 pm
BOS
- SEA
2 stops12h 25m
Southwest
Deal found 7/23![Southwest logo]()
$184
This Super.com deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Super.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/177:09 am
BOS
- SEA
Nonstop6h 21m
JetBlue
Deal found 7/20![JetBlue logo]()
$185
This Super.com deal was found by Cheapflights users on 7/20. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Super.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/207:30 pm
BOS
- SEA
Nonstop6h 23m
JetBlue
Deal found 7/20![JetBlue logo]()
$186
This Cheapflightsfares deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cheapflightsfares is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/307:09 am
BOS
- SEA
Nonstop6h 21m
JetBlue
Deal found 7/19![JetBlue logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 8/1411:59 am
BOS
- SEA
2 stops24h 05m
Frontier
Deal found 7/19![Frontier logo]()
$188
This Delta deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/292:57 pm
PWM
- SEA
1 stop11h 23m
Delta
Deal found 7/21![Delta logo]()
$188
This JetBlue deal was found by Cheapflights users on 7/21. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure JetBlue is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/167:09 am
BOS
- SEA
Nonstop6h 21m
JetBlue
Deal found 7/21![JetBlue logo]()
$189
Find flight deals from New Hampshire to Seattle
Keep the following information in mind while searching for New Hampshire to Seattle flight deals. Data was last updated July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $298 (Cheapflightsfares) |
One-way from | $176 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $471 |
Cheapflights Fare Finder
Ā
Customize your flight search to find flights from New Hampshire to Seattle 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 2,558,603 searches. Data last updated July 23, 2026.
Use the filters below to find and compare flights from New Hampshire to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Sat 9/26
11:20 am-8:44 pm
1 stop12h 24m
Seattle/Tacoma Intl
Sun 10/4
11:42 pm-8:06 am
Nonstop5h 24m
$320
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Wed 9/9
11:34 am-6:29 pm
1 stop9h 55m
Seattle/Tacoma Intl
Sun 9/20
11:00 pm-9:33 am
1 stop7h 33m
$322
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 9/1
6:45 pm-10:20 pm
Nonstop6h 35m
Seattle/Tacoma Intl
Wed 9/9
1:35 pm-10:07 pm
Nonstop5h 32m
$327
Quickest round-trip
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 9/22
4:48 pm-8:01 pm
Nonstop6h 13m
Seattle/Tacoma Intl
Sat 9/26
3:29 pm-11:54 pm
Nonstop5h 25m
$327
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Sat 8/29
12:44 pm-9:08 pm
1 stop11h 24m
Seattle/Tacoma Intl
Sat 9/5
11:40 pm-7:59 am
Nonstop5h 19m
$336
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 8/25
2:45 pm-11:05 pm
2 stops11h 20m
Seattle/Tacoma Intl
Wed 9/2
11:00 pm-2:55 pm
2 stops12h 55m
$347
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 9/15
3:20 pm-11:05 pm
2 stops10h 45m
Seattle/Tacoma Intl
Tue 9/29
6:40 am-9:20 pm
2 stops11h 40m
$347
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Fri 10/2
10:50 am-9:05 pm
1 stop13h 15m
Seattle/Tacoma Intl
Tue 10/6
6:15 am-6:35 pm
2 stops9h 20m
$352
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Wed 9/9
3:20 pm-11:05 pm
2 stops10h 45m
Seattle/Tacoma Intl
Sat 9/19
11:00 pm-12:40 pm
2 stops10h 40m
$357
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Wed 9/9
2:45 pm-11:25 pm
2 stops11h 40m
Seattle/Tacoma Intl
Sun 9/13
9:05 am-12:25 am
1 stop12h 20m
$358
Showing 1-10 of 58 resultsSorted by cheapest first
Best time to book a flight from New Hampshire to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from New Hampshire with our price prediction graph.
MHT-SEA
PWM-SEA
BOS-SEA
LEB-SEA
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 New Hampshire to Seattle
USNH-SEA
MHT-SEA
PWM-SEA
BOS-SEA
LEB-SEA
What is the cheapest month to book a flight from New Hampshire to Seattle?
Currently, September is the cheapest month in which you can book a flight from New Hampshire to Seattle (average of $446). Flying from New Hampshire to Seattle in December is currently the most expensive (average of $796). 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.
How much does it cost to fly round-trip from New Hampshire to Seattle?
Airfare is below average for this route at the moment.
New Hampshire to Seattle flights typically cost between $478 and $736 in September.The cheapest round-trip price found within the last 5 days was $355 on American Airlines (Sep 1-Sep 10).
Related info for your journey
Find useful and relevant information for your journey from New Hampshire to Seattle. 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 Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Seattle flight routes
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Alternative routes for New Hampshire to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from New Hampshire to Seattle by cabin class
Find flights from New Hampshire to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
New Hampshire and Seattle flights
Browse other New Hampshire and Seattle flight options. Last updated on July 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
New Hampshire to Seattle flights
Consider these flights traveling from New Hampshire to Seattle.
Top 2 airlines flying from New Hampshire to Seattle
Discover the top 2 airlines that operate flights from New Hampshire to Seattle. 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 2,558,603 searches. Data last updated July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$326 | Average$553 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$382 | Average$546 | FlexibilityNo cancel fee | On-time63% |