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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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$197
(Delta)

One-way from

$124
(Alaska Airlines)

Popular in

August

Cheapest in

January

Average price

$458
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. 17% potential increase in price ($74 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 June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 9/2410:00 pmSEA - BOS
Nonstop5h 34mDelta
Sat 10/47:05 amBOS - SEA
Nonstop6h 40mDelta
Deal found 6/10$197
This KAYAK deal was found by Cheapflights users on 6/12. 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.
Sat 9/273:59 pmSEA - BOS
Nonstop5h 24mHawaiian Airlines
Tue 9/306:40 pmBOS - SEA
Nonstop6h 10mHawaiian Airlines
Deal found 6/12$198
This JetBlue deal was found by Cheapflights users on 6/10. 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 9/2011:30 amSEA - BOS
Nonstop5h 33mJetBlue
Sat 9/277:00 amBOS - SEA
Nonstop6h 19mJetBlue
Deal found 6/10$207
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/510:43 pmSEA - BOS
1 stop8h 31mAmerican Airlines
Tue 8/1211:14 amBOS - SEA
1 stop11h 48mAmerican Airlines
Deal found 6/11$220
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 9/47:56 amSEA - BOS
1 stop19h 04mAlaska Airlines
Tue 9/95:37 pmBOS - SEA
1 stop7h 52mAlaska Airlines
Deal found 6/10$236
This JetBlue deal was found by Cheapflights users on 6/9. 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 9/511:40 pmSEA - PWM
1 stop10h 42mJetBlue
Fri 9/122:17 pmPWM - SEA
1 stop10h 53mJetBlue
Deal found 6/9$261
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/87:00 pmSEA - BOS
1 stop8h 01mUnited Airlines
Tue 7/155:30 amBOS - SEA
1 stop9h 20mUnited Airlines
Deal found 6/10$270
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Wed 7/23:58 pmSEA - BOS
2 stops20h 39mSpirit Airlines
Tue 7/84:44 pmBOS - SEA
2 stops26h 41mSpirit Airlines
Deal found 6/10$280
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/46:05 amSEA - MHT
1 stop7h 49mAmerican Airlines
Wed 9/177:05 amMHT - SEA
1 stop16h 04mAmerican Airlines
Deal found 6/12$296
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/1910:50 pmSEA - PWM
1 stop8h 51mAmerican Airlines
Thu 9/46:00 amPWM - SEA
1 stop9h 05mAmerican Airlines
Deal found 6/12$297
This Delta deal was found by Cheapflights users on 6/10. 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 8/2511:55 pmSEA - PWM
1 stop7h 47mDelta
Sat 9/131:50 pmPWM - SEA
1 stop9h 42mDelta
Deal found 6/10$306
This Southwest deal was found by Cheapflights users on 6/10. 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 8/610:45 pmSEA - BOS
2 stops12h 05mSouthwest
Tue 8/1911:25 amBOS - SEA
1 stop13h 10mSouthwest
Deal found 6/10$308

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 June 12, 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

Wed 9/3

3:59 pm-12:23 am

Nonstop5h 24m

Boston Logan Intl

Sat 9/6

6:40 pm-9:50 pm

Nonstop6h 10m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 8/5

10:43 pm-10:14 am

1 stop8h 31m

Boston Logan Intl

Tue 8/12

11:14 am-8:02 pm

1 stop11h 48m

$220

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 9/4

7:56 am-6:00 am

1 stop19h 04m

Boston Logan Intl

Tue 9/9

5:37 pm-10:29 pm

1 stop7h 52m

$236

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 7/14

10:17 pm-6:40 am

Nonstop5h 23m

Boston Logan Intl

Tue 7/22

6:50 pm-10:16 pm

Nonstop6h 26m

$237

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 8/29

9:50 pm-6:12 am

Nonstop5h 22m

Boston Logan Intl

Wed 9/3

7:00 am-10:19 am

Nonstop6h 19m

$238

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 9/5

11:40 pm-1:22 pm

1 stop10h 42m

Portland

Fri 9/12

2:17 pm-10:10 pm

1 stop10h 53m

$261

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 7/8

7:00 pm-6:01 am

1 stop8h 01m

Boston Logan Intl

Tue 7/15

5:30 am-11:50 am

1 stop9h 20m

$270

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 7/2

3:58 pm-3:37 pm

2 stops20h 39m

Boston Logan Intl

Tue 7/8

4:44 pm-4:25 pm

2 stops26h 41m

$280

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 9/4

6:05 am-4:54 pm

1 stop7h 49m

Manchester

Wed 9/17

7:05 am-8:09 pm

1 stop16h 04m

$296

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 8/19

10:50 pm-10:41 am

1 stop8h 51m

Portland

Thu 9/4

6:00 am-12:05 pm

1 stop9h 05m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 46 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 June 12, 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 June 12, 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
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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 Alaska Airlines, with whom users have recently found tickets for as low as $124. However, be on the lookout for offers from Spirit Airlines and Hawaiian 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 July is currently the most expensive (average of $399). 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$336Average$555FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$416Average$536FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$487Average$807FlexibilityNo cancel feeOn-time75%

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