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New Hampshire

$124+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap 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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$242
(Kiwi.com)

One-way from

$124
(Delta)

Popular in

July

Cheapest in

January

Average price

$347
Provider with most accurate pricing for Seattle/Tacoma Intl-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Boston Logan Intl flights.
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From Seattle/Tacoma Intl to New Hampshire
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One-way flight from Seattle/Tacoma Intl to New Hampshire
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Highest demand for flights based on searches. 26% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to New Hampshire

Cheapest flights from Seattle to New Hampshire
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 April 24, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/93:49 pmSEA - BOS
Nonstop5h 23mHawaiian Airlines
Thu 5/157:30 amBOS - SEA
Nonstop6h 10mHawaiian Airlines
Deal found 4/23$242
This Delta deal was found by Cheapflights users on 4/22. 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.
Wed 5/217:25 amSEA - BOS
Nonstop5h 35mDelta
Wed 6/47:07 pmBOS - SEA
Nonstop6h 14mDelta
Deal found 4/22$247
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/23:46 pmSEA - BOS
1 stop10h 54mAlaska Airlines
Tue 6/39:00 amBOS - SEA
Nonstop6h 09mAlaska Airlines
Deal found 4/22$251
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/33:40 pmSEA - BOS
Nonstop5h 26mMultiple Airlines
Tue 6/107:00 amBOS - SEA
1 stop12h 50mMultiple Airlines
Deal found 4/22$253
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:00 amSEA - BOS
2 stops31h 24mSpirit Airlines
Tue 5/273:49 pmBOS - SEA
2 stops35h 21mSpirit Airlines
Deal found 4/22$265
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 5/811:59 pmSEA - BOS
1 stop8h 44mAmerican Airlines
Mon 5/125:38 pmBOS - SEA
1 stop8h 31mAmerican Airlines
Deal found 4/23$292
This JetBlue deal was found by Cheapflights users on 4/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:38 amSEA - BOS
Nonstop5h 32mJetBlue
Fri 5/307:10 amBOS - SEA
Nonstop6h 18mJetBlue
Deal found 4/22$296
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/208:10 amSEA - BOS
1 stop8h 22mUnited Airlines
Tue 5/279:30 amBOS - SEA
1 stop9h 08mUnited Airlines
Deal found 4/22$309
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 5/272:20 pmSEA - PWM
1 stop18h 12mAmerican Airlines
Tue 6/34:01 pmPWM - SEA
1 stop8h 49mAmerican Airlines
Deal found 4/21$325
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:00 amSEA - PWM
1 stop7h 19mDelta
Sat 9/612:50 pmPWM - SEA
1 stop10h 37mDelta
Deal found 4/23$335
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 8/2211:55 pmSEA - MHT
1 stop8h 55mAmerican Airlines
Sun 8/3112:21 pmMHT - SEA
1 stop10h 43mAmerican Airlines
Deal found 4/23$344
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/2912:55 pmSEA - PWM
1 stop8h 02mUnited Airlines
Mon 6/27:09 pmPWM - SEA
1 stop8h 55mUnited Airlines
Deal found 4/23$351

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 2,558,603 searches. Data last updated April 24, 2025.
Use the filters below to find and compare flights from Seattle to New Hampshire that are best for you.

Fly from

Seattle

Fly to

New Hampshire

Route

Depart

Return

Price

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 5/9

3:49 pm-12:12 am

Nonstop5h 23m

Boston Logan Intl

Thu 5/15

7:30 am-10:40 am

Nonstop6h 10m

$242

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 5/21

7:25 am-4:00 pm

Nonstop5h 35m

Boston Logan Intl

Wed 6/4

7:07 pm-10:21 pm

Nonstop6h 14m

$247

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 6/2

3:46 pm-5:40 am

1 stop10h 54m

Boston Logan Intl

Tue 6/3

9:00 am-12:09 pm

Nonstop6h 09m

$251

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 6/3

3:40 pm-12:06 am

Nonstop5h 26m

Boston Logan Intl

Tue 6/10

7:00 am-4:50 pm

1 stop12h 50m

$253

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 5/20

6:00 am-4:24 pm

2 stops31h 24m

Boston Logan Intl

Tue 5/27

3:49 pm-12:10 am

2 stops35h 21m

$265

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 5/8

11:59 pm-11:43 am

1 stop8h 44m

Boston Logan Intl

Mon 5/12

5:38 pm-11:09 pm

1 stop8h 31m

$292

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 5/23

11:38 am-8:10 pm

Nonstop5h 32m

Boston Logan Intl

Fri 5/30

7:10 am-10:28 am

Nonstop6h 18m

$296

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 5/20

8:10 am-7:32 pm

1 stop8h 22m

Boston Logan Intl

Tue 5/27

9:30 am-3:38 pm

1 stop9h 08m

$309

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 5/27

2:20 pm-11:32 am

1 stop18h 12m

Portland

Tue 6/3

4:01 pm-9:50 pm

1 stop8h 49m

$325

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 7/1

11:59 pm-10:39 am

1 stop7h 40m

Portland

Tue 7/8

11:59 am-10:25 pm

2 stops13h 26m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 43 results
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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.
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

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

Find hourly flight availability from Seattle to New Hampshire. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

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

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 April 24, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Seattle to New Hampshire. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies

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.

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

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to New Hampshire from Seattle.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $124. However, be on the lookout for offers from American Airlines and Spirit Airlines, as they are both options that can get you from Seattle to New Hampshire for a low price.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to New Hampshire 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 Seattle to New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from Seattle to New Hampshire (average of $334). Flying from Seattle to New Hampshire in June is currently the most expensive (average of $442). 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.

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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.
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Top 4 airlines flying from Seattle to New Hampshire

Discover the top 4 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 2,558,603 searches. Data last updated April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$336Average$570FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$492FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$416Average$586FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$487Average$807FlexibilityNo cancel feeOn-time75%

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