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$144+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SEA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$216
(JetBlue)

One-way from

$144
(Alaska Airlines)

Popular in

August

Cheapest in

January

Average price

$443
From New Hampshire to Seattle/Tacoma Intl
Search Deals
One-way flight from New Hampshire to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 16% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This JetBlue deal was found by Cheapflights users on 7/30. 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 9/137:00 amBOS - SEA
Nonstop6h 19mJetBlue
Sat 9/2011:30 amSEA - BOS
Nonstop5h 53mJetBlue
Deal found 7/30$216
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 9/136:55 pmBOS - SEA
Nonstop6h 13mHawaiian Airlines
Sat 9/203:59 pmSEA - BOS
Nonstop5h 28mHawaiian Airlines
Deal found 7/31$217
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 9/138:23 pmBOS - SEA
1 stop14h 44mAlaska Airlines
Sat 9/203:59 pmSEA - BOS
Nonstop5h 28mAlaska Airlines
Deal found 7/31$227
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/132:40 pmBOS - SEA
1 stop8h 29mAmerican Airlines
Sat 9/206:05 amSEA - BOS
1 stop7h 59mAmerican Airlines
Deal found 7/30$235
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/225:05 pmBOS - SEA
1 stop8h 54mUnited Airlines
Tue 9/211:54 pmSEA - BOS
1 stop8h 07mUnited Airlines
Deal found 7/29$252
This JetBlue deal was found by Cheapflights users on 7/31. 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 10/22:17 pmPWM - SEA
1 stop11h 07mJetBlue
Mon 10/611:40 pmSEA - PWM
1 stop10h 42mJetBlue
Deal found 7/31$259
This Southwest deal was found by Cheapflights users on 7/29. 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 8/1911:25 amBOS - SEA
1 stop13h 15mSouthwest
Mon 8/2511:10 pmSEA - BOS
1 stop11h 10mSouthwest
Deal found 7/29$263
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/217:07 amMHT - SEA
1 stop9h 39mAmerican Airlines
Sat 10/256:10 amSEA - MHT
1 stop10h 19mAmerican Airlines
Deal found 7/31$325
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 10/29:28 amPWM - SEA
1 stop10h 29mAmerican Airlines
Sun 10/512:34 amSEA - PWM
1 stop8h 07mAmerican Airlines
Deal found 7/31$331
This Southwest deal was found by Cheapflights users on 7/30. 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 9/101:50 pmPWM - SEA
2 stops10h 50mSouthwest
Tue 9/169:10 pmSEA - PWM
1 stop9h 40mSouthwest
Deal found 7/30$338
This Delta deal was found by Cheapflights users on 7/30. 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 9/106:00 amPWM - SEA
2 stops11h 44mDelta
Sat 9/206:00 amSEA - PWM
2 stops13h 00mDelta
Deal found 7/30$343
This Southwest deal was found by Cheapflights users on 7/31. 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 9/103:50 pmMHT - SEA
2 stops10h 45mSouthwest
Sat 9/137:35 amSEA - MHT
2 stops11h 50mSouthwest
Deal found 7/31$375

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 July 31, 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

Sat 9/13

7:00 am-10:19 am

Nonstop6h 19m

Seattle/Tacoma Intl

Sat 9/20

11:30 am-8:23 pm

Nonstop5h 53m

$216

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 9/13

7:20 am-10:33 am

Nonstop6h 13m

Seattle/Tacoma Intl

Sat 9/20

3:59 pm-12:27 am

Nonstop5h 28m

$217

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 9/13

8:23 pm-8:07 am

1 stop14h 44m

Seattle/Tacoma Intl

Sat 9/20

3:59 pm-12:27 am

Nonstop5h 28m

$227

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 9/13

2:40 pm-8:09 pm

1 stop8h 29m

Seattle/Tacoma Intl

Sat 9/20

6:05 am-5:04 pm

1 stop7h 59m

$235

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 8/22

5:05 pm-10:59 pm

1 stop8h 54m

Seattle/Tacoma Intl

Tue 9/2

11:54 pm-11:01 am

1 stop8h 07m

$252

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Thu 10/2

2:17 pm-10:24 pm

1 stop11h 07m

Seattle/Tacoma Intl

Mon 10/6

11:40 pm-1:22 pm

1 stop10h 42m

$259

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 8/19

11:25 am-9:40 pm

1 stop13h 15m

Seattle/Tacoma Intl

Mon 8/25

11:10 pm-1:20 pm

1 stop11h 10m

$263

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 9/5

6:59 pm-10:25 pm

Nonstop6h 26m

Seattle/Tacoma Intl

Sat 9/13

10:05 pm-6:35 am

Nonstop5h 30m

$267

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 10/21

7:07 am-1:46 pm

1 stop9h 39m

Seattle/Tacoma Intl

Sat 10/25

6:10 am-7:29 pm

1 stop10h 19m

$325

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Thu 10/2

9:28 am-4:57 pm

1 stop10h 29m

Seattle/Tacoma Intl

Sun 10/5

12:34 am-11:41 am

1 stop8h 07m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 39 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 $389). 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 July 31, 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated July 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from New Hampshire to Seattle have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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.

  • 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 Alaska Airlines ($144), Hawaiian Airlines ($148), and Southwest ($149).

  • 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 $389). 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
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$342Average$422FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$356Average$546FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$381Average$491FlexibilityNo cancel feeOn-time63%

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