$169+ Cheap flights from Seattle (SEA) to New Hampshire
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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to New Hampshire 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to New Hampshire
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Cheapest flights from Seattle to New HampshireExplore the most affordable flight options available from Seattle to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
Explore the most affordable flight options available from Seattle to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
This Super.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1511:42 pm -
Nonstop5h 24m
Wed 9/307:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$310
This JetBlue deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1211:42 pm -
Nonstop5h 24m
Tue 9/297:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$313
This JetBlue deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1211:42 pm -
Nonstop5h 24m
Sat 9/197:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$315
This Super.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:42 pm -
Nonstop5h 24m
Tue 9/297:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$321
This Cheapflightsfares deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/1911:42 pm -
Nonstop5h 24m
Thu 10/17:20 pm -
Nonstop6h 17m
Deal found 8/18![JetBlue logo]()
$322
This Expedia deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/266:51 pm -
1 stop8h 18m
Tue 10/67:09 pm -
Nonstop6h 22m
Deal found 8/17![Multiple Airlines logo]()
$323
This JetBlue deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1511:42 pm -
Nonstop5h 24m
Mon 9/287:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$325
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” 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 11/186:30 am -
1 stop6h 55m
Sat 12/510:40 am -
1 stop8h 25m
Deal found 8/20![Southwest logo]()
$328
This Expedia deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/1910:23 am -
1 stop16h 46m
Sat 9/267:20 pm -
Nonstop6h 17m
Deal found 8/19![Multiple Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/1911:57 pm -
1 stop7h 32m
Sat 9/267:00 am -
1 stop8h 50m
Deal found 8/19![American Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/199:15 am -
1 stop12h 15m
Sat 9/265:40 am -
1 stop8h 20m
Deal found 8/18![Southwest logo]()
$333
This Super.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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.
Thu 10/1511:55 pm -
Nonstop5h 24m
Mon 10/196:59 pm -
Nonstop6h 39m
Deal found 8/18![JetBlue logo]()
$334
Best flights from Seattle to New HampshireDiscover carefully curated flight deals from Seattle to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Seattle to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This Southwest deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 10/2812:10 am -
2 stops11h 50m
Mon 11/26:35 pm -
1 stop9h 05m
Deal found 8/18![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:15 am -
2 stops13h 55m
Wed 10/2111:55 am -
2 stops10h 07m
Deal found 8/20![Delta logo]()
$347
This JetBlue deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” 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 10/2010:15 pm -
1 stop9h 31m
Sat 10/246:59 pm -
Nonstop6h 39m
Deal found 8/20![JetBlue logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:20 pm -
Nonstop5h 20m
Sat 11/149:03 am -
1 stop10h 54m
Deal found 8/21![Alaska Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” 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 11/2210:56 pm -
2 stops12h 07m
Sat 12/52:38 pm -
1 stop8h 42m
Deal found 8/21![United Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” 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 9/196:18 am -
2 stops9h 57m
Sat 9/2612:02 pm -
2 stops11h 05m
Deal found 8/21![American Airlines logo]()
$456
This United deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:00 pm -
2 stops11h 36m
Fri 9/253:45 pm -
2 stops27h 06m
Deal found 8/19![Multiple Airlines logo]()
$593
This Southwest deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 10/2612:10 am -
1 stop9h 20m
Fri 10/306:35 pm -
1 stop9h 00m
Deal found 8/19![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/236:00 am -
1 stop6h 55m
Sat 9/262:35 pm -
1 stop11h 45m
Deal found 8/18![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/269:15 am -
1 stop12h 15m
Sat 10/31:25 pm -
2 stops11h 15m
Deal found 8/17![Southwest logo]()
$350
This Alaska Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” 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 9/126:51 pm -
1 stop8h 18m
Thu 9/177:12 am -
Nonstop6h 13m
Deal found 8/20![Alaska Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:13 pm -
1 stop8h 27m
Sun 10/257:50 am -
1 stop11h 37m
Deal found 8/18![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” 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 10/176:15 am -
2 stops11h 15m
Wed 10/211:15 pm -
2 stops12h 25m
Deal found 8/20![Southwest logo]()
$355
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” 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 9/174:05 pm -
Nonstop5h 24m
Thu 9/244:00 pm -
Nonstop6h 16m
Deal found 8/20![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/155:20 am -
1 stop13h 50m
Tue 9/225:45 am -
2 stops12h 15m
Deal found 8/17![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:09 am -
1 stop7h 53m
Sat 10/313:23 pm -
1 stop8h 56m
Deal found 8/21![United Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:05 pm -
2 stops11h 11m
Mon 9/284:20 pm -
1 stop10h 00m
Deal found 8/17![Delta logo]()
$443
This Southwest deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/165:20 am -
2 stops10h 15m
Wed 9/232:45 pm -
2 stops11h 45m
Deal found 8/17![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
2 stops13h 59m
Sat 10/319:25 am -
2 stops11h 34m
Deal found 8/21![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/3011:50 am -
1 stop9h 06m
Tue 10/134:15 pm -
1 stop9h 49m
Deal found 8/19![Delta logo]()
$459
This Southwest deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” 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 9/287:25 pm -
2 stops11h 05m
Fri 10/22:35 pm -
2 stops13h 00m
Deal found 8/22![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” 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 9/58:10 am -
1 stop8h 08m
Wed 9/94:57 pm -
1 stop8h 48m
Deal found 8/21![United Airlines logo]()
$485
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:20 am -
1 stop6h 55m
Sat 11/147:45 am -
1 stop12h 00m
Deal found 8/21![Southwest logo]()
$383
This Delta deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 am -
2 stops12h 15m
Sat 10/102:33 pm -
1 stop11h 31m
Deal found 8/22![Delta logo]()
$464
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” 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 10/211:25 pm -
1 stop7h 30m
Sun 10/255:00 am -
1 stop8h 30m
Deal found 8/20![Southwest logo]()
$385
This Priceline deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” 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 9/711:45 pm -
1 stop7h 17m
Fri 9/117:09 am -
2 stops11h 50m
Deal found 8/22![Multiple Airlines logo]()
$780
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/28:10 am -
1 stop7h 50m
Sun 9/69:25 am -
2 stops12h 42m
Deal found 8/18![United Airlines logo]()
$577
This Southwest deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1411:05 pm -
2 stops10h 35m
Thu 9/173:55 pm -
1 stop11h 00m
Deal found 8/17![Southwest logo]()
$407
This Southwest deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” 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 10/298:05 am -
2 stops10h 55m
Sun 11/18:15 am -
1 stop15h 55m
Deal found 8/22![Southwest logo]()
$414
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” 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 11/225:30 am -
1 stop8h 10m
Sat 12/57:45 am -
1 stop12h 00m
Deal found 8/21![Southwest logo]()
$420
Last-minute flights from Seattle to New HampshireDiscover last-minute flight deals from Seattle to New Hampshire. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to New Hampshire. Data last updated August 22, 2026 and is based on user searches.
This JetBlue deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1211:42 pm -
Nonstop5h 24m
Sat 10/37:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$313
This JetBlue deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1211:42 pm -
Nonstop5h 24m
Sat 9/197:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$315
This Super.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1511:42 pm -
Nonstop5h 24m
Wed 9/307:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$310
This JetBlue deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/1511:42 pm -
Nonstop5h 24m
Fri 10/27:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$325
This Cheapflightsfares deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/1911:42 pm -
Nonstop5h 24m
Thu 9/247:20 pm -
Nonstop6h 17m
Deal found 8/18![JetBlue logo]()
$322
This Expedia deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/1910:23 am -
1 stop16h 46m
Sat 9/267:20 pm -
Nonstop6h 17m
Deal found 8/19![Multiple Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/1911:57 pm -
1 stop7h 32m
Sat 9/267:00 am -
1 stop8h 50m
Deal found 8/19![American Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/199:15 am -
1 stop12h 15m
Sat 9/265:40 am -
1 stop8h 20m
Deal found 8/18![Southwest logo]()
$333
This Super.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:42 pm -
Nonstop5h 24m
Tue 9/297:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$321
This Cheapflightsfares deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:42 pm -
Nonstop5h 24m
Mon 9/287:20 pm -
Nonstop6h 17m
Deal found 8/17![JetBlue logo]()
$334
This Expedia deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/266:51 pm -
1 stop8h 18m
Tue 10/67:09 pm -
Nonstop6h 22m
Deal found 8/17![Multiple Airlines logo]()
$323
This Expedia deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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.
Mon 9/286:51 pm -
1 stop8h 18m
Sat 10/37:20 pm -
Nonstop6h 17m
Deal found 8/18![Multiple Airlines logo]()
$335
One-way flights from Seattle to New HampshireSearch for one-way flight options from Seattle to New Hampshire. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Seattle to New Hampshire. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” 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 10/1511:45 am -
1 stop8h 50m
Deal found 8/21![Delta logo]()
$169
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 10/108:24 am -
1 stop7h 41m
Deal found 8/18![American Airlines logo]()
$169
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am -
2 stops10h 22m
Deal found 8/19![United Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:48 pm -
2 stops12h 27m
Deal found 8/19![United Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:05 pm -
2 stops12h 03m
Deal found 8/21![United Airlines logo]()
$178
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/236:00 am -
1 stop6h 55m
Deal found 8/18![Delta logo]()
$179
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/1110:42 am -
1 stop7h 41m
Deal found 8/18![United Airlines logo]()
$185
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/2511:57 pm -
1 stop8h 55m
Deal found 8/18![American Airlines logo]()
$185
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/58:10 am -
1 stop8h 08m
Deal found 8/19![United Airlines logo]()
$188
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/2511:13 pm -
2 stops11h 38m
Deal found 8/18![United Airlines logo]()
$190
This Southwest deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” 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 9/157:10 am -
2 stops11h 45m
Deal found 8/19![Southwest logo]()
$190
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:45 am -
2 stops12h 46m
Deal found 8/18![Delta logo]()
$193
Find flight deals from Seattle to New Hampshire
Keep the following information in mind while searching for Seattle to New Hampshire flight deals. Data was last updated August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $310 (Cheapflightsfares) |
One-way from | $169 (Delta) |
Popular in | December |
Cheapest in | September |
Average price | $461 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to New Hampshire 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 August 22, 2026.
Use the filters below to find and compare flights from Seattle to New Hampshire that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Wed 10/28
12:10 am-3:00 pm
2 stops11h 50m
Manchester
Mon 11/2
6:35 pm-12:40 am
1 stop9h 05m
$342
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Mon 10/26
12:10 am-12:30 pm
1 stop9h 20m
Boston Logan Intl
Fri 10/30
6:35 pm-12:35 am
1 stop9h 00m
$345
SeattlePortland
SEA Seattle/Tacoma Intl - PWM Portland
SEAPWM
Seattle/Tacoma Intl
Sat 10/17
7:15 am-12:10 am
2 stops13h 55m
Portland
Wed 10/21
11:55 am-7:02 pm
2 stops10h 07m
$347
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Tue 10/20
10:15 pm-10:46 am
1 stop9h 31m
Boston Logan Intl
Sat 10/24
6:59 pm-10:38 pm
Nonstop6h 39m
$347
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Sat 9/26
9:15 am-12:30 am
1 stop12h 15m
Boston Logan Intl
Sat 10/3
1:25 pm-9:40 pm
2 stops11h 15m
$350
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Sat 10/17
6:15 am-8:30 pm
2 stops11h 15m
Boston Logan Intl
Wed 10/21
1:15 pm-10:40 pm
2 stops12h 25m
$355
SeattlePortland
SEA Seattle/Tacoma Intl - PWM Portland
SEAPWM
Seattle/Tacoma Intl
Wed 9/23
6:00 am-3:55 pm
1 stop6h 55m
Portland
Sat 9/26
2:35 pm-11:20 pm
1 stop11h 45m
$357
SeattlePortland
SEA Seattle/Tacoma Intl - PWM Portland
SEAPWM
Seattle/Tacoma Intl
Tue 9/15
5:20 am-10:10 pm
1 stop13h 50m
Portland
Tue 9/22
5:45 am-3:00 pm
2 stops12h 15m
$358
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Wed 9/16
5:20 am-6:35 pm
2 stops10h 15m
Boston Logan Intl
Wed 9/23
2:45 pm-11:30 pm
2 stops11h 45m
$370
SeattleBoston
SEA Seattle/Tacoma Intl - BOS Boston Logan Intl
SEABOS
Seattle/Tacoma Intl
Mon 9/28
7:25 pm-9:30 am
2 stops11h 05m
Boston Logan Intl
Fri 10/2
2:35 pm-12:35 am
2 stops13h 00m
$382
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to New Hampshire
Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Seattle with our price prediction graph.
SEA-BOS
SEA-MHT
SEA-PWM
SEA-LEB
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 New Hampshire
SEA-USNH
SEA-BOS
SEA-MHT
SEA-PWM
SEA-LEB
What is the cheapest month to book a flight from Seattle to New Hampshire?
Currently, January is the cheapest month in which you can book a flight from Seattle to New Hampshire (average of $328). Flying from Seattle to New Hampshire in May is currently the most expensive (average of $986). 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 Seattle to New Hampshire?
Airfare is below average for this route at the moment.
Seattle to New Hampshire flights typically cost between $461 and $618 in September.The cheapest round-trip price found within the last 5 days was $337 on American Airlines (Sep 30-Oct 6).
Reviews of airlines servicing New Hampshire
Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated August 22, 2026.
Read reviews from past customers who have flown Southwest and American Airlines from Seattle to New Hampshire. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Seattle to New Hampshire. 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 New Hampshire
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to New Hampshire by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to New Hampshire by cabin class
Find flights from Seattle to New Hampshire, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and New Hampshire flights
Browse other Seattle and New Hampshire flight options. Last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to New Hampshire flights
Consider these flights traveling from Seattle to New Hampshire.
Top 2 airlines flying from Seattle to New Hampshire
Discover the top 2 airlines that operate flights from Seattle to New Hampshire. 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 August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$333 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$416 | Average$576 | FlexibilityNo cancel fee | On-time63% |