$182+ Cheap flights from Seattle (SEA) to New Hampshire
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Oct 24 — Oct 311
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
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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 September 24, 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 September 24, 2026.
This Southwest deal was found by Cheapflights users on 9/22. 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 12/711:20 am -
1 stop6h 55m
Mon 12/147:15 am -
1 stop8h 35m
Deal found 9/22![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 -
1 stop7h 40m
Wed 11/1112:45 pm -
2 stops13h 05m
Deal found 9/23![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:10 am -
1 stop13h 30m
Wed 11/112:10 pm -
2 stops12h 25m
Deal found 9/23![Southwest logo]()
$374
This American Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/1711:17 am -
1 stop9h 56m
Fri 10/237:07 am -
1 stop10h 10m
Deal found 9/23![American Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:15 am -
1 stop10h 34m
Sat 11/146:00 am -
2 stops12h 44m
Deal found 9/20![American Airlines logo]()
$402
This Southwest deal was found by Cheapflights users on 9/21. 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 11/15:30 am -
1 stop8h 10m
Thu 11/56:35 pm -
1 stop9h 10m
Deal found 9/21![Southwest logo]()
$415
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/168:24 am -
1 stop10h 18m
Sun 10/186:00 am -
1 stop8h 39m
Deal found 9/19![American Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:10 am -
1 stop8h 15m
Fri 10/231:40 pm -
2 stops14h 00m
Deal found 9/23![Southwest logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:40 pm -
1 stop15h 09m
Mon 11/304:00 pm -
1 stop21h 38m
Deal found 9/19![Multiple Airlines logo]()
$705
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:22 pm -
1 stop7h 27m
Tue 12/14:00 pm -
1 stop9h 00m
Deal found 9/19![Multiple Airlines logo]()
$707
This KAYAK deal was found by Cheapflights users on 9/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:22 pm -
1 stop7h 27m
Tue 12/14:00 pm -
1 stop9h 00m
Deal found 9/19![Multiple Airlines logo]()
$710
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:22 pm -
1 stop10h 38m
Mon 11/301:25 pm -
1 stop26h 12m
Deal found 9/19![Multiple Airlines logo]()
$718
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 September 24, 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 September 24, 2026.
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/286:15 am -
2 stops11h 55m
Wed 11/112:10 pm -
2 stops12h 25m
Deal found 9/23![Southwest logo]()
$373
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/168:24 am -
1 stop10h 18m
Sun 10/186:00 am -
1 stop8h 39m
Deal found 9/19![American Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:05 am -
2 stops11h 54m
Tue 11/102:38 pm -
1 stop9h 18m
Deal found 9/23![United Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:40 pm -
1 stop15h 09m
Mon 11/304:00 pm -
1 stop21h 38m
Deal found 9/19![Multiple Airlines logo]()
$705
This Southwest deal was found by Cheapflights users on 9/20. 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.
Mon 12/76:10 am -
2 stops12h 55m
Mon 12/1412:45 pm -
2 stops12h 45m
Deal found 9/20![Southwest logo]()
$373
This Southwest deal was found by Cheapflights users on 9/19. 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.
Fri 2/196:15 am -
1 stop6h 55m
Tue 2/235:10 pm -
1 stop8h 45m
Deal found 9/19![Southwest logo]()
$375
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:50 am -
2 stops10h 09m
Tue 11/109:25 am -
2 stops14h 22m
Deal found 9/23![United Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 9/21. 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 11/111:10 am -
2 stops9h 40m
Thu 11/56:35 pm -
1 stop9h 10m
Deal found 9/21![Southwest logo]()
$420
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Thu 10/299:05 am -
2 stops11h 54m
Sat 10/319:25 am -
2 stops12h 38m
Deal found 9/21![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:50 am -
2 stops10h 09m
Mon 11/92:38 pm -
1 stop9h 18m
Deal found 9/23![United Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/218:25 am -
1 stop7h 36m
Thu 10/229:25 am -
2 stops11h 54m
Deal found 9/21![United Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:22 pm -
1 stop7h 27m
Tue 12/14:00 pm -
1 stop9h 00m
Deal found 9/19![Multiple Airlines logo]()
$707
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/279:05 am -
2 stops11h 54m
Tue 11/109:25 am -
2 stops14h 22m
Deal found 9/23![United Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:22 pm -
1 stop7h 27m
Tue 12/14:00 pm -
1 stop9h 00m
Deal found 9/19![Multiple Airlines logo]()
$707
This KAYAK deal was found by Cheapflights users on 9/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:22 pm -
1 stop7h 27m
Tue 12/14:00 pm -
1 stop9h 00m
Deal found 9/19![Multiple Airlines logo]()
$710
This KAYAK deal was found by Cheapflights users on 9/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:00 pm -
1 stop11h 00m
Wed 11/117:00 am -
1 stop8h 27m
Deal found 9/21![Multiple Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:05 am -
2 stops11h 54m
Wed 11/119:25 am -
2 stops16h 42m
Deal found 9/23![United Airlines logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:22 pm -
1 stop10h 38m
Mon 11/301:25 pm -
1 stop26h 12m
Deal found 9/19![Multiple Airlines logo]()
$718
This KAYAK deal was found by Cheapflights users on 9/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:00 pm -
1 stop7h 49m
Wed 11/117:00 am -
1 stop8h 27m
Deal found 9/21![Multiple Airlines logo]()
$730
This Expedia deal was found by Cheapflights users on 9/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:41 pm -
1 stop10h 55m
Sat 10/1011:00 am -
1 stop14h 42m
Deal found 9/21![Multiple Airlines logo]()
$770
Last-minute flights from Seattle to New HampshireDiscover last-minute flight deals from Seattle to New Hampshire. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to New Hampshire. Data last updated September 24, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:41 pm -
1 stop10h 55m
Sat 10/1011:00 am -
1 stop14h 42m
Deal found 9/21![Multiple Airlines logo]()
$770
This Priceline deal was found by Cheapflights users on 9/22. 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.
Wed 10/711:38 pm -
1 stop7h 24m
Sun 10/112:49 pm -
1 stop10h 53m
Deal found 9/22![Multiple Airlines logo]()
$975
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 10/168:24 am -
1 stop10h 18m
Sun 10/186:00 am -
1 stop8h 39m
Deal found 9/19![American Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:10 am -
1 stop8h 15m
Fri 10/231:40 pm -
2 stops14h 00m
Deal found 9/23![Southwest logo]()
$475
This American Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/1711:17 am -
1 stop9h 56m
Fri 10/237:07 am -
1 stop10h 10m
Deal found 9/23![American Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:24 am -
1 stop7h 41m
Thu 10/225:05 pm -
1 stop10h 31m
Deal found 9/22![American Airlines logo]()
$493
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:10 am -
1 stop13h 30m
Wed 11/112:10 pm -
2 stops12h 25m
Deal found 9/23![Southwest logo]()
$374
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 -
1 stop7h 40m
Mon 11/96:35 pm -
1 stop9h 10m
Deal found 9/23![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 -
1 stop7h 40m
Wed 11/1112:45 pm -
2 stops13h 05m
Deal found 9/23![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:05 am -
2 stops11h 54m
Tue 11/102:38 pm -
1 stop9h 18m
Deal found 9/23![United Airlines logo]()
$498
This KAYAK deal was found by Cheapflights users on 9/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:00 pm -
1 stop7h 49m
Wed 11/117:00 am -
1 stop8h 27m
Deal found 9/21![Multiple Airlines logo]()
$710
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 September 24, 2026.
Search for one-way flight options from Seattle to New Hampshire. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Mon 11/169:15 am -
1 stop10h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$182
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/1611:15 pm -
2 stops11h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 11/210:56 pm -
2 stops12h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$252
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1811:59 pm -
1 stop9h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 9/20. 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 10/1712:10 am -
2 stops11h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Southwest logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:14 pm -
3 stops44h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$278
This KAYAK deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:55 pm -
1 stop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:48 pm -
1 stop8h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![American Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:32 pm -
2 stops17h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$331
This Alaska Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:28 pm -
1 stop9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Alaska Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:27 pm -
3 stops40h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:28 pm -
1 stop9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Alaska Airlines logo]()
$435
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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Southwest) |
One-way from | $182 (American Airlines) |
Popular in | December |
Cheapest in | May |
Average price | $393 |
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 September 24, 2026.
Use the filters below to find and compare flights from Seattle to New Hampshire that are best for you.
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Cheapest round-trip
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Tue 11/3
7:00 am-11:59 pm
2 stops13h 59m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$252
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Mon 11/2
10:56 pm-2:03 pm
2 stops12h 07m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$252
SeattleLebanon
SEA Seattle/Tacoma Intl - LEB Lebanon Municipal
SEALEB
Seattle/Tacoma Intl
Wed 10/21
11:55 pm-6:45 pm
1 stop15h 50m
Lebanon Municipal
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$304
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Mon 11/2
9:28 pm-10:23 am
1 stop9h 55m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$334
SeattleLebanon
SEA Seattle/Tacoma Intl - LEB Lebanon Municipal
SEALEB
Seattle/Tacoma Intl
Sun 11/1
9:20 pm-9:49 am
1 stop9h 29m
Lebanon Municipal
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$338
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Wed 10/28
6:15 am-9:10 pm
2 stops11h 55m
Manchester
Wed 11/11
2:10 pm-11:35 pm
2 stops12h 25m
$373
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Mon 12/7
6:10 am-10:05 pm
2 stops12h 55m
Manchester
Mon 12/14
12:45 pm-10:30 pm
2 stops12h 45m
$373
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Fri 2/19
6:15 am-4:10 pm
1 stop6h 55m
Manchester
Tue 2/23
5:10 pm-10:55 pm
1 stop8h 45m
$375
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Sun 11/1
11:10 am-11:50 pm
2 stops9h 40m
Manchester
Thu 11/5
6:35 pm-12:45 am
1 stop9h 10m
$420
SeattleManchester
SEA Seattle/Tacoma Intl - MHT Manchester
SEAMHT
Seattle/Tacoma Intl
Wed 10/7
8:59 pm-9:42 pm
2 stops21h 43m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$451
Showing 1-10 of 33 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-MHT
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-MHT
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 $448 and $602 in December.The cheapest round-trip price found within the last 5 days was $363 on Southwest (Dec 7-Dec 14).
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 September 24, 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.
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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 September 24, 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 September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$362 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$416 | Average$596 | FlexibilityNo cancel fee | On-time63% |