$137+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SEA
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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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 June 9, 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 June 9, 2026.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/94:50 pm
PWM
- SEA
1 stop8h 15m
Delta
Tue 9/1511:59 pm
SEA
- PWM
1 stop7h 46m
Delta
Deal found 6/8![Delta logo]()
$239
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 10/313:35 pm
PWM
- SEA
1 stop8h 37m
United Airlines
Tue 11/35:07 am
SEA
- PWM
1 stop7h 42m
United Airlines
Deal found 6/9![United Airlines logo]()
$262
This Cheapflightsfares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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.
Sat 9/126:59 pm
BOS
- SEA
Nonstop6h 39m
JetBlue
Tue 9/159:40 pm
SEA
- BOS
1 stop10h 06m
JetBlue
Deal found 6/8![JetBlue logo]()
$290
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/2111:15 am
BOS
- SEA
1 stop11h 20m
Southwest
Sat 9/265:30 pm
SEA
- BOS
1 stop9h 30m
Southwest
Deal found 6/8![Southwest logo]()
$292
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 8/225:30 am
BOS
- SEA
2 stops10h 40m
Southwest
Tue 8/2511:05 pm
SEA
- BOS
1 stop7h 50m
Southwest
Deal found 6/9![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/1012:50 pm
PWM
- SEA
1 stop10h 39m
Delta
Wed 9/1611:59 pm
SEA
- PWM
1 stop7h 46m
Delta
Deal found 6/8![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/208:40 am
BOS
- SEA
1 stop16h 05m
Southwest
Sat 8/229:20 am
SEA
- BOS
1 stop12h 05m
Southwest
Deal found 6/8![Southwest logo]()
$297
This lol.travel deal was found by Cheapflights users on 6/7. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:24 pm
BOS
- SEA
Nonstop6h 25m
JetBlue
Sat 7/1111:21 pm
SEA
- BOS
Nonstop5h 18m
JetBlue
Deal found 6/7![JetBlue logo]()
$298
This Cheapflightsfares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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.
Sat 9/121:00 pm
BOS
- SEA
1 stop10h 42m
JetBlue
Fri 9/189:40 pm
SEA
- BOS
1 stop10h 06m
JetBlue
Deal found 6/8![JetBlue logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:38 am
BOS
- SEA
1 stop8h 29m
United Airlines
Sat 9/127:00 am
SEA
- BOS
1 stop9h 10m
United Airlines
Deal found 6/6![United Airlines logo]()
$300
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/2811:35 am
BOS
- SEA
2 stops11h 55m
Southwest
Tue 8/48:30 am
SEA
- BOS
1 stop12h 55m
Southwest
Deal found 6/8![Southwest logo]()
$301
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 10/315:40 am
PWM
- SEA
2 stops14h 00m
Southwest
Tue 11/36:25 pm
SEA
- PWM
2 stops12h 30m
Southwest
Deal found 6/9![Southwest logo]()
$301
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 June 9, 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 June 9, 2026.
This Southwest deal was found by Cheapflights users on 6/7. 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.
Sat 7/43:10 pm
BOS
- SEA
1 stop10h 10m
Southwest
Wed 7/1511:05 pm
SEA
- BOS
1 stop8h 50m
Southwest
Deal found 6/7![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 6/5. 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.
Sat 9/56:45 pm
BOS
- SEA
Nonstop6h 35m
Delta
Wed 9/163:55 pm
SEA
- BOS
Nonstop5h 27m
Delta
Deal found 6/5![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 6/4. 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.
Thu 8/207:59 pm
BOS
- SEA
Nonstop6h 13m
Alaska Airlines
Sun 8/237:08 am
SEA
- BOS
1 stop20h 01m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am
PWM
- SEA
1 stop8h 27m
United Airlines
Tue 9/2911:13 pm
SEA
- PWM
1 stop8h 27m
United Airlines
Deal found 6/8![United Airlines logo]()
$412
This JetBlue deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:10 am
BOS
- SEA
Nonstop6h 23m
JetBlue
Wed 7/1511:45 am
SEA
- BOS
Nonstop5h 28m
JetBlue
Deal found 6/6![JetBlue logo]()
$425
This Southwest deal was found by Cheapflights users on 6/5. 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.
Sat 7/47:45 am
BOS
- SEA
2 stops11h 10m
Southwest
Tue 7/147:30 pm
SEA
- BOS
2 stops9h 30m
Southwest
Deal found 6/5![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:50 pm
PWM
- SEA
1 stop8h 15m
Delta
Wed 11/116:00 am
SEA
- PWM
1 stop7h 10m
Delta
Deal found 6/7![Delta logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/134:33 pm
BOS
- SEA
1 stop19h 46m
Alaska Airlines
Sat 8/226:51 pm
SEA
- BOS
1 stop8h 18m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$397
This Priceline deal was found by Cheapflights users on 6/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/62:46 pm
LEB
- SEA
1 stop11h 21m
Multiple Airlines
Sun 7/126:03 am
SEA
- LEB
1 stop9h 19m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$810
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/205:45 am
BOS
- SEA
2 stops11h 10m
Southwest
Tue 7/217:30 pm
SEA
- BOS
2 stops9h 30m
Southwest
Deal found 6/8![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 6/4. 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 9/262:43 pm
MHT
- SEA
1 stop8h 54m
United Airlines
Tue 9/298:10 am
SEA
- MHT
1 stop7h 53m
United Airlines
Deal found 6/4![United Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 6/6. 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 8/217:35 pm
BOS
- SEA
Nonstop6h 36m
Delta
Wed 8/2611:13 pm
SEA
- BOS
Nonstop5h 22m
Delta
Deal found 6/6![Delta logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/174:33 pm
BOS
- SEA
1 stop19h 46m
Alaska Airlines
Fri 7/244:45 pm
SEA
- BOS
1 stop9h 55m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 6/5. 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.
Thu 8/276:25 pm
MHT
- SEA
1 stop8h 05m
Southwest
Tue 9/15:20 am
SEA
- MHT
2 stops9h 15m
Southwest
Deal found 6/5![Southwest logo]()
$415
This Delta deal was found by Cheapflights users on 6/6. 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 9/184:45 pm
PWM
- SEA
2 stops10h 14m
Delta
Wed 9/2311:45 am
SEA
- PWM
1 stop9h 14m
Delta
Deal found 6/6![Delta logo]()
$424
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 7/2111:35 am
BOS
- SEA
2 stops11h 35m
Southwest
Fri 7/317:30 pm
SEA
- BOS
2 stops9h 35m
Southwest
Deal found 6/7![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am
PWM
- SEA
1 stop11h 28m
United Airlines
Wed 9/237:35 pm
SEA
- PWM
2 stops12h 05m
United Airlines
Deal found 6/7![United Airlines logo]()
$524
This Southwest deal was found by Cheapflights users on 6/5. 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.
Tue 6/3012:50 pm
BOS
- SEA
2 stops10h 35m
Southwest
Thu 7/25:30 am
SEA
- BOS
2 stops9h 40m
Southwest
Deal found 6/5![Southwest logo]()
$427
This Delta deal was found by Cheapflights users on 6/5. 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 7/36:00 am
PWM
- SEA
1 stop11h 55m
Delta
Fri 7/1011:34 am
SEA
- PWM
1 stop10h 25m
Delta
Deal found 6/5![Delta logo]()
$475
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:15 am
PWM
- SEA
2 stops13h 52m
United Airlines
Wed 9/165:20 pm
SEA
- PWM
2 stops13h 44m
United Airlines
Deal found 6/7![United Airlines logo]()
$546
This Southwest deal was found by Cheapflights users on 6/5. 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.
Tue 9/15:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Sun 9/1310:30 pm
SEA
- PWM
1 stop8h 20m
Southwest
Deal found 6/5![Southwest logo]()
$453
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/311:48 am
PWM
- SEA
1 stop8h 12m
Delta
Thu 7/911:34 am
SEA
- PWM
1 stop10h 25m
Delta
Deal found 6/8![Delta logo]()
$527
This JetBlue deal was found by Cheapflights users on 6/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:42 pm
LEB
- SEA
1 stop10h 07m
JetBlue
Tue 7/1411:46 pm
SEA
- LEB
1 stop7h 16m
JetBlue
Deal found 6/5![JetBlue logo]()
$789
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 7/76:55 am
MHT
- SEA
2 stops10h 50m
Southwest
Tue 7/149:25 pm
SEA
- MHT
1 stop8h 05m
Southwest
Deal found 6/9![Southwest logo]()
$455
This Southwest deal was found by Cheapflights users on 6/6. 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 9/155:35 am
MHT
- SEA
2 stops10h 30m
Southwest
Tue 9/2211:05 pm
SEA
- MHT
1 stop9h 45m
Southwest
Deal found 6/6![Southwest logo]()
$462
This JetBlue deal was found by Cheapflights users on 6/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:46 pm
LEB
- SEA
1 stop11h 03m
JetBlue
Wed 7/1511:46 pm
SEA
- LEB
1 stop7h 16m
JetBlue
Deal found 6/5![JetBlue logo]()
$823
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/56:05 am
PWM
- SEA
1 stop20h 52m
Delta
Tue 8/2511:59 pm
SEA
- PWM
1 stop7h 46m
Delta
Deal found 6/8![Delta logo]()
$586
This JetBlue deal was found by Cheapflights users on 6/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:42 pm
LEB
- SEA
1 stop10h 07m
JetBlue
Wed 7/1511:46 pm
SEA
- LEB
1 stop7h 16m
JetBlue
Deal found 6/5![JetBlue logo]()
$823
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 8/46:15 pm
MHT
- SEA
1 stop8h 20m
Southwest
Fri 8/146:15 am
SEA
- MHT
2 stops12h 35m
Southwest
Deal found 6/7![Southwest logo]()
$472
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Fri 9/1110:30 pm
SEA
- PWM
1 stop10h 15m
Southwest
Deal found 6/4![Southwest logo]()
$473
Last-minute flights from New Hampshire to SeattleDiscover last-minute flight deals from New Hampshire to Seattle. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to Seattle. Data last updated June 9, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:24 pm
BOS
- SEA
Nonstop6h 25m
JetBlue
Tue 7/710:19 pm
SEA
- BOS
1 stop10h 14m
JetBlue
Deal found 6/6![JetBlue logo]()
$310
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:07 pm
MHT
- SEA
1 stop9h 34m
American Airlines
Wed 7/810:35 pm
SEA
- MHT
1 stop8h 32m
American Airlines
Deal found 6/4![American Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Fri 7/36:28 pm
MHT
- SEA
1 stop9h 35m
American Airlines
Tue 7/1412:40 pm
SEA
- MHT
1 stop7h 57m
American Airlines
Deal found 6/5![American Airlines logo]()
$433
This Flysmarter deal was found by Cheapflights users on 6/7. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:24 pm
BOS
- SEA
Nonstop6h 25m
JetBlue
Sat 7/1111:21 pm
SEA
- BOS
Nonstop5h 18m
JetBlue
Deal found 6/7![JetBlue logo]()
$297
This Cheapflightsfares deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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.
Sat 7/47:24 pm
BOS
- SEA
Nonstop6h 25m
JetBlue
Tue 7/711:45 am
SEA
- BOS
Nonstop5h 28m
JetBlue
Deal found 6/9![JetBlue logo]()
$302
This Expedia deal was found by Cheapflights users on 6/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:24 pm
BOS
- SEA
Nonstop6h 25m
JetBlue
Tue 7/1411:45 am
SEA
- BOS
Nonstop5h 28m
JetBlue
Deal found 6/6![JetBlue logo]()
$306
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 7/76:18 pm
MHT
- SEA
1 stop9h 34m
American Airlines
Tue 7/1411:56 pm
SEA
- MHT
1 stop8h 35m
American Airlines
Deal found 6/9![American Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/135:52 pm
BOS
- SEA
1 stop10h 05m
American Airlines
Wed 9/306:40 am
SEA
- BOS
1 stop9h 00m
American Airlines
Deal found 6/8![American Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/144:46 pm
BOS
- SEA
1 stop9h 14m
American Airlines
Tue 7/2110:35 pm
SEA
- BOS
1 stop8h 20m
American Airlines
Deal found 6/8![American Airlines logo]()
$300
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 7/146:18 pm
MHT
- SEA
1 stop9h 34m
American Airlines
Wed 7/2211:56 pm
SEA
- MHT
1 stop8h 35m
American Airlines
Deal found 6/9![American Airlines logo]()
$422
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/285:50 am
BOS
- SEA
2 stops11h 55m
Southwest
Tue 8/48:30 am
SEA
- BOS
1 stop12h 55m
Southwest
Deal found 6/8![Southwest logo]()
$301
This Super.com deal was found by Cheapflights users on 6/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:29 pm
BOS
- SEA
Nonstop6h 25m
JetBlue
Wed 8/1210:19 pm
SEA
- BOS
1 stop9h 57m
JetBlue
Deal found 6/5![JetBlue logo]()
$311
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 June 9, 2026.
Search for one-way flight options from New Hampshire to Seattle. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This JetBlue deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:17 pm
PWM
- SEA
1 stop10h 47m
JetBlue
Deal found 6/6![JetBlue logo]()
$137
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 8/255:45 am
PWM
- SEA
1 stop10h 15m
Southwest
Deal found 6/7![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/295:35 am
MHT
- SEA
1 stop10h 25m
Southwest
Deal found 6/8![Southwest logo]()
$147
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Sat 9/54:30 pm
MHT
- SEA
1 stop9h 26m
American Airlines
Deal found 6/6![American Airlines logo]()
$156
This JetBlue deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:40 pm
PWM
- SEA
1 stop9h 24m
JetBlue
Deal found 6/6![JetBlue logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:10 am
BOS
- SEA
Nonstop6h 25m
JetBlue
Deal found 6/5![JetBlue logo]()
$174
This JetBlue deal was found by Cheapflights users on 6/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:10 am
BOS
- SEA
Nonstop6h 23m
JetBlue
Deal found 6/7![JetBlue logo]()
$178
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/75:30 pm
BOS
- SEA
1 stop9h 55m
Southwest
Deal found 6/8![Southwest logo]()
$179
This Southwest deal was found by Cheapflights users on 6/4. 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.
Mon 9/79:40 am
BOS
- SEA
1 stop8h 20m
Southwest
Deal found 6/4![Southwest logo]()
$180
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 7/117:03 am
BOS
- SEA
Nonstop6h 23m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$182
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 9/45:08 pm
BOS
- SEA
1 stop8h 56m
United Airlines
Deal found 6/9![United Airlines logo]()
$183
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 11/212:35 pm
PWM
- SEA
1 stop10h 37m
Delta
Deal found 6/9![Delta logo]()
$183
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 June 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Delta) |
One-way from | $137 (JetBlue) |
Popular in | December |
Cheapest in | October |
Average price | $427 |
Cheapflights Fare Finder
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 June 9, 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 7/4
3:10 pm-10:20 pm
1 stop10h 10m
Seattle/Tacoma Intl
Wed 7/15
11:05 pm-10:55 am
1 stop8h 50m
$327
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Sat 9/5
6:45 pm-10:20 pm
Nonstop6h 35m
Seattle/Tacoma Intl
Wed 9/16
3:55 pm-12:22 am
Nonstop5h 27m
$337
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Sat 7/4
7:45 am-3:55 pm
2 stops11h 10m
Seattle/Tacoma Intl
Tue 7/14
7:30 pm-8:00 am
2 stops9h 30m
$337
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Sat 11/7
4:50 pm-10:05 pm
1 stop8h 15m
Seattle/Tacoma Intl
Wed 11/11
6:00 am-4:10 pm
1 stop7h 10m
$365
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Thu 8/20
7:59 pm-11:12 pm
Nonstop6h 13m
Seattle/Tacoma Intl
Sun 8/23
7:08 am-6:09 am
1 stop20h 01m
$372
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Mon 7/20
5:45 am-1:55 pm
2 stops11h 10m
Seattle/Tacoma Intl
Tue 7/21
7:30 pm-8:00 am
2 stops9h 30m
$392
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Thu 8/13
4:33 pm-9:19 am
1 stop19h 46m
Seattle/Tacoma Intl
Sat 8/22
6:51 pm-6:09 am
1 stop8h 18m
$397
PortlandSeattle
PWM - SEA
PWMSEA
Portland
Sat 9/26
6:00 am-11:27 am
1 stop8h 27m
Seattle/Tacoma Intl
Tue 9/29
11:13 pm-10:40 am
1 stop8h 27m
$412
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Fri 8/21
7:35 pm-11:11 pm
Nonstop6h 36m
Seattle/Tacoma Intl
Wed 8/26
11:13 pm-7:35 am
Nonstop5h 22m
$412
ManchesterSeattle
MHT - SEA
MHTSEA
Manchester
Thu 8/27
6:25 pm-11:30 pm
1 stop8h 05m
Seattle/Tacoma Intl
Tue 9/1
5:20 am-5:35 pm
2 stops9h 15m
$415
Showing 1-10 of 60 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.
BOS-SEA
MHT-SEA
PWM-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
BOS-SEA
MHT-SEA
PWM-SEA
LEB-SEA
What is the cheapest month to book a flight from New Hampshire to Seattle?
Currently, October is the cheapest month in which you can book a flight from New Hampshire to Seattle (average of $98). Flying from New Hampshire to Seattle in March is currently the most expensive (average of $542). 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?
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
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline
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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Complete your trip
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Top destinations
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 June 9, 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 June 9, 2026.
New Hampshire to Seattle flights
Consider these flights traveling from New Hampshire to Seattle.
Top 3 airlines flying from New Hampshire to Seattle
Discover the top 3 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 June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$344 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$347 | Average$796 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$379 | Average$456 | FlexibilityNo cancel fee | On-time63% |