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$99+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Feb 16 — Feb 231
Sun 2/16
Sun 2/23
1 adult, Economy
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Cheap flight deals from Seattle to New Hampshire

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to New Hampshire (USNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$166
(FlightHub)

One-way from

$99
(JetBlue Airways)

Popular in

July

Cheapest in

January

Average price

$259
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 ($137 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 February 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 February 11, 2025.

This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:57 pmSEA - BOS
2 stops22h 31mSpirit Airlines
Mon 5/510:33 pmBOS - SEA
2 stops24h 26mSpirit Airlines
Deal found 2/10$166
This Travelocity deal was found by Cheapflights users on 2/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2411:30 pmSEA - BOS
Nonstop5h 14mMultiple Airlines
Sat 3/16:05 amBOS - SEA
2 stops21h 20mMultiple Airlines
Deal found 2/9$192
This eDestinos deal was found by Cheapflights users on 2/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/51:36 pmSEA - BOS
2 stops16h 19mFrontier
Tue 3/1111:33 amBOS - SEA
2 stops27h 59mFrontier
Deal found 2/11$193
This JetBlue deal was found by Cheapflights users on 2/10. 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.
Fri 2/2811:48 pmSEA - BOS
Nonstop5h 13mJetBlue
Sat 3/87:19 pmBOS - SEA
Nonstop6h 19mJetBlue
Deal found 2/10$197
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/33:45 pmSEA - BOS
Nonstop5h 14mHawaiian Airlines
Tue 3/116:24 pmBOS - SEA
Nonstop6h 35mHawaiian Airlines
Deal found 2/10$198
This American Airlines deal was found by Cheapflights users on 2/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2411:59 pmSEA - BOS
1 stop7h 22mAmerican Airlines
Sun 3/24:10 pmBOS - SEA
1 stop8h 59mAmerican Airlines
Deal found 2/10$236
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 3/37:13 pmSEA - BOS
1 stop7h 36mUnited Airlines
Fri 3/71:55 pmBOS - SEA
1 stop11h 25mUnited Airlines
Deal found 2/10$237
This Delta deal was found by Cheapflights users on 2/10. 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.
Fri 3/1410:59 pmSEA - BOS
Nonstop5h 27mDelta
Fri 3/2811:00 amBOS - SEA
Nonstop6h 20mDelta
Deal found 2/10$247
This Kissandfly.com deal was found by Cheapflights users on 2/11. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2711:10 pmSEA - BOS
1 stop8h 21mAlaska Airlines
Wed 3/56:24 pmBOS - SEA
Nonstop6h 35mAlaska Airlines
Deal found 2/11$262
This United Airlines deal was found by Cheapflights users on 2/10. 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 3/1811:55 amSEA - PWM
1 stop8h 20mUnited Airlines
Wed 3/263:55 pmPWM - SEA
1 stop9h 28mUnited Airlines
Deal found 2/10$317
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 3/191:50 pmSEA - MHT
1 stop7h 50mAmerican Airlines
Wed 3/265:40 amMHT - SEA
1 stop10h 10mAmerican Airlines
Deal found 2/11$337
This Southwest deal was found by Cheapflights users on 2/10. 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.
Fri 3/149:40 amSEA - BOS
1 stop12h 05mSouthwest
Sat 3/296:30 amBOS - SEA
2 stops12h 55mSouthwest
Deal found 2/10$353

Find flights from Seattle to New Hampshire within your budget

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 February 11, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 5/1

7:57 pm-9:28 pm

2 stops22h 31m

Boston Logan Intl

Mon 5/5

10:33 pm-7:59 pm

2 stops24h 26m

$166

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 2/24

11:30 pm-7:44 am

Nonstop5h 14m

Boston Logan Intl

Sat 3/1

6:05 am-12:25 am

2 stops21h 20m

$192

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 3/5

1:36 pm-8:55 am

2 stops16h 19m

Boston Logan Intl

Tue 3/11

11:33 am-12:32 pm

2 stops27h 59m

$193

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 2/28

7:30 am-3:59 pm

Nonstop5h 29m

Boston Logan Intl

Sat 3/8

7:05 pm-10:25 pm

Nonstop6h 20m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 3/3

3:45 pm-11:59 pm

Nonstop5h 14m

Boston Logan Intl

Tue 3/11

6:24 pm-9:59 pm

Nonstop6h 35m

$198

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 2/27

11:48 pm-8:01 am

Nonstop5h 13m

Boston Logan Intl

Fri 3/28

7:19 pm-10:38 pm

Nonstop6h 19m

$207

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 3/1

1:33 pm-11:44 pm

1 stop7h 11m

Boston Logan Intl

Wed 3/5

2:08 pm-11:23 pm

1 stop12h 15m

$226

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 3/3

11:30 pm-7:44 am

Nonstop5h 14m

Boston Logan Intl

Fri 3/7

7:00 am-10:40 am

Nonstop6h 40m

$237

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 2/27

9:20 am-9:49 pm

1 stop9h 29m

Boston Logan Intl

Sat 3/1

12:45 pm-8:19 pm

2 stops10h 34m

$242

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 3/18

11:55 am-11:15 pm

1 stop8h 20m

Portland

Wed 3/26

3:55 pm-10:23 pm

1 stop9h 28m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 45 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.

Travel insights for flights from Seattle to New Hampshire

Get recent, data-driven insights about flights from Seattle to New Hampshire including ideal travel times, pricing trends, and more.

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 February 11, 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 February 11, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,496 reviews

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Southwest
8.1
Very good
4,496 reviews
Southwest
8.1
Very good
4,496 reviews

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Alaska Airlines
8.0
Very good
9,691 reviews
Southwest
8.1
Very good
4,496 reviews

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Delta
8.0
Very good
8,336 reviews
Southwest
8.1
Very good
4,496 reviews

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Hawaiian Airlines
7.9
Good
2,318 reviews
Southwest
8.1
Very good
4,496 reviews

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

JetBlue
7.4
Good
3,111 reviews
Southwest
8.1
Very good
4,496 reviews

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

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 JetBlue, with whom users have recently found tickets for as low as $99. 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 June is currently the most expensive (average of $453). 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 February 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$346Average$496FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$346Average$582FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$412Average$596FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$587Average$825FlexibilityNo cancel feeOn-time75%
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