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$109+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SEA
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap 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 septiembre 16, 2025.

Round-trip from

$189
(KAYAK)

One-way from

$109
(JetBlue)

Popular in

August

Cheapest in

January

Average price

$337
From New Hampshire to Seattle/Tacoma Intl
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One-way flight from New Hampshire to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from New Hampshire to Seattle

Cheapest flights from New Hampshire to Seattle
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 septiembre 16, 2025.

This KAYAK deal was found by Cheapflights users on 9/16. 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.
mié. 11/57:00 amBOS - SEA
Nonstop6h 35mAlaska Airlines
sáb. 11/153:59 pmSEA - BOS
Nonstop5h 21mAlaska Airlines
Deal found 9/16$189
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
jue. 10/239:20 amBOS - SEA
Nonstop6h 16mMultiple Airlines
vie. 10/313:59 pmSEA - BOS
Nonstop5h 21mMultiple Airlines
Deal found 9/15$193
This American Airlines deal was found by Cheapflights users on 9/16. 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.
mié. 11/57:30 amBOS - SEA
1 stop11h 01mAmerican Airlines
lun. 11/1011:20 pmSEA - BOS
1 stop10h 02mAmerican Airlines
Deal found 9/16$195
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/117:00 amBOS - SEA
Nonstop6h 35mHawaiian Airlines
sáb. 11/153:59 pmSEA - BOS
Nonstop5h 21mHawaiian Airlines
Deal found 9/15$197
This KAYAK deal was found by Cheapflights users on 9/16. 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.
mié. 11/59:00 amBOS - SEA
Nonstop6h 35mAlaska Airlines
dom. 11/1611:10 pmSEA - BOS
Nonstop5h 19mAlaska Airlines
Deal found 9/16$199
This American Airlines deal was found by Cheapflights users on 9/16. 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.
vie. 10/315:30 amBOS - SEA
1 stop10h 15mAmerican Airlines
mar. 11/111:35 pmSEA - BOS
1 stop7h 24mAmerican Airlines
Deal found 9/16$201
This JetBlue deal was found by Cheapflights users on 9/15. 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.
sáb. 10/188:20 amBOS - SEA
Nonstop6h 39mJetBlue
mar. 10/211:10 pmSEA - BOS
Nonstop5h 36mJetBlue
Deal found 9/15$202
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sáb. 11/17:00 amBOS - SEA
Nonstop6h 35mHawaiian Airlines
lun. 11/1711:10 pmSEA - BOS
Nonstop5h 19mHawaiian Airlines
Deal found 9/16$204
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
jue. 10/307:00 amBOS - SEA
Nonstop6h 35mAlaska Airlines
lun. 11/311:10 pmSEA - BOS
Nonstop5h 19mAlaska Airlines
Deal found 9/15$207
This American Airlines deal was found by Cheapflights users on 9/14. 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.
jue. 10/233:54 pmBOS - SEA
1 stop11h 33mAmerican Airlines
vie. 10/3111:04 amSEA - BOS
1 stop9h 54mAmerican Airlines
Deal found 9/14$208
This Kissandfly.com deal was found by Cheapflights users on 9/16. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/238:20 amBOS - SEA
Nonstop6h 39mJetBlue
vie. 10/3110:05 pmSEA - BOS
Nonstop5h 30mJetBlue
Deal found 9/16$210
This American Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 9/308:35 amBOS - SEA
1 stop8h 24mAmerican Airlines
vie. 10/311:05 pmSEA - BOS
1 stop10h 18mAmerican Airlines
Deal found 9/16$212

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 septiembre 16, 2025.
Use the filters below to find and compare flights from New Hampshire to Seattle that are best for you.

Fly from

New Hampshire

Fly to

Seattle

Route

Depart

Return

Price

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 11/12

7:00 am-10:35 am

Nonstop6h 35m

Seattle/Tacoma Intl

dom. 11/16

3:59 pm-12:20 am

Nonstop5h 21m

$197

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 11/11

7:00 am-10:35 am

Nonstop6h 35m

Seattle/Tacoma Intl

sáb. 11/15

3:59 pm-12:20 am

Nonstop5h 21m

$197

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 11/15

9:00 am-12:35 pm

Nonstop6h 35m

Seattle/Tacoma Intl

lun. 11/17

3:59 pm-12:20 am

Nonstop5h 21m

$207

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

jue. 10/30

7:20 am-10:45 am

Nonstop6h 25m

Seattle/Tacoma Intl

jue. 11/6

7:50 am-4:22 pm

Nonstop5h 32m

$217

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 10/31

11:10 am-2:28 pm

Nonstop6h 18m

Seattle/Tacoma Intl

vie. 11/7

10:05 pm-6:35 am

Nonstop5h 30m

$217

PortlandSeattle

PWM - SEA

PWMSEA

Portland

mar. 11/11

4:53 pm-10:14 pm

1 stop8h 21m

Seattle/Tacoma Intl

mar. 11/18

11:10 pm-1:50 pm

2 stops11h 40m

$226

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

jue. 11/13

6:23 pm-9:51 pm

Nonstop6h 28m

Seattle/Tacoma Intl

lun. 11/17

8:07 pm-5:55 pm

1 stop18h 48m

$227

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 12/6

7:00 am-10:35 am

Nonstop6h 35m

Seattle/Tacoma Intl

mar. 12/9

9:00 am-5:20 pm

Nonstop5h 20m

$237

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 11/15

7:00 am-10:35 am

Nonstop6h 35m

Seattle/Tacoma Intl

jue. 11/20

3:59 pm-12:20 am

Nonstop5h 21m

$252

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

dom. 12/14

6:20 pm-12:35 am

1 stop9h 15m

Seattle/Tacoma Intl

mar. 12/30

5:00 am-6:25 pm

1 stop10h 25m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 59 results
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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.
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

What is the cheapest month to book a flight from New Hampshire to Seattle?

Currently, January is the cheapest month in which you can book a flight from New Hampshire to Seattle (average of $238). Flying from New Hampshire to Seattle in June is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from NH to SEA?

Find hourly flight availability from New Hampshire to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New Hampshire to Seattle as you normally would.

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.

  • What airport do you fly into for flights to Seattle from New Hampshire?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from New Hampshire to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How long is the flight from New Hampshire to Seattle?

    Airlines like Alaska Airlines, Hawaiian Airlines, and Delta fly from New Hampshire to Seattle in about 6h 25m. The time it takes to get you to your destination is usually consistent. There are 2487 mi between New Hampshire and Seattle. All flights are typically nonstop.

  • What are the cheapest airlines to fly from New Hampshire to Seattle one-way?

    The cheapest airlines for a one-way flight from New Hampshire to Seattle are Southwest ($109), Delta ($109), and American Airlines ($143).

  • What are the most popular routes from New Hampshire to Seattle?

    The most popular flight routes from New Hampshire to Seattle are Boston Logan Intl - Seattle/Tacoma Intl, Portland - Seattle/Tacoma Intl and Manchester - Seattle/Tacoma Intl.

  • Can I find deals for flights from New Hampshire to Seattle that include hotel bookings?

    Yes. In addition to deals on New Hampshire to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Hampshire to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Hampshire to Seattle.

  • Can I find deals for business class flights from New Hampshire to Seattle?

    Yes. Cheapflights offers flight deals from New Hampshire to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New Hampshire to Seattle?

    Currently, January is the cheapest month in which you can book a flight from New Hampshire to Seattle (average of $238). Flying from New Hampshire to Seattle in June is currently the most expensive (average of $387). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$342Average$416FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$345Average$549FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$379Average$476FlexibilityNo cancel feeOn-time63%

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