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New Hampshire

$109+ Cheap flights from Washington 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Washington to New Hampshire

Cheapest flights from Washington to New Hampshire
Explore the most affordable flight options available from Washington to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/30. 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.
Sat 11/156:00 amSEA - PWM
1 stop7h 07mDelta
Wed 11/194:53 pmPWM - SEA
1 stop8h 30mDelta
Deal found 10/30$197
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/1412:59 amSEA - PWM
2 stops11h 20mAmerican Airlines
Wed 11/193:52 pmPWM - SEA
1 stop9h 28mAmerican Airlines
Deal found 10/30$202
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/1111:52 pmSEA - BOS
1 stop7h 46mUnited Airlines
Tue 11/1811:00 amBOS - SEA
1 stop10h 25mUnited Airlines
Deal found 10/28$217
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:22 pmPDX - BOS
1 stop8h 08mDelta
Sun 11/235:50 amBOS - PDX
1 stop9h 58mDelta
Deal found 10/29$218
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:15 pmPDX - BOS
1 stop9h 14mAmerican Airlines
Wed 11/192:30 pmBOS - PDX
1 stop11h 56mAmerican Airlines
Deal found 10/29$219
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:55 pmSEA - PWM
2 stops9h 13mDelta
Wed 11/122:30 pmPWM - SEA
1 stop10h 55mDelta
Deal found 10/29$222
This Delta deal was found by Cheapflights users on 10/30. 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 12/311:55 pmSEA - PWM
2 stops9h 18mDelta
Wed 12/104:53 pmPWM - SEA
1 stop8h 32mDelta
Deal found 10/30$226
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/133:59 pmSEA - BOS
Nonstop5h 21mHawaiian Airlines
Wed 11/199:00 amBOS - SEA
Nonstop6h 35mHawaiian Airlines
Deal found 10/28$226
This Delta deal was found by Cheapflights users on 10/30. 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.
Mon 11/1711:10 pmSEA - PWM
1 stop9h 58mDelta
Thu 12/44:53 pmPWM - SEA
1 stop8h 32mDelta
Deal found 10/30$229
This Aunt Betty deal was found by Cheapflights users on 10/28. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/113:59 pmSEA - BOS
Nonstop5h 21mHawaiian Airlines
Fri 11/149:00 amBOS - SEA
Nonstop6h 35mHawaiian Airlines
Deal found 10/28$230
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 12/43:38 pmSEA - BOS
Nonstop5h 21mHawaiian Airlines
Thu 12/114:24 pmBOS - SEA
1 stop10h 48mHawaiian Airlines
Deal found 10/28$231
This Southwest deal was found by Cheapflights users on 10/29. 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.
Wed 12/36:55 pmPDX - BOS
2 stops10h 20mSouthwest
Tue 12/91:35 pmBOS - PDX
1 stop8h 45mSouthwest
Deal found 10/29$233

Cheap flight deals from Washington to New Hampshire

Keep the following information in mind while searching for Washington to New Hampshire flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$197
(Delta)

One-way from

$109
(Delta)

Popular in

December

Cheapest in

January

Average price

$336
Provider with most accurate pricing for Seattle/Tacoma Intl-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Boston Logan Intl flights.
Search Deals
From Washington to New Hampshire
Search Deals
One-way flight from Washington to New Hampshire
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 October 30, 2025.
Use the filters below to find and compare flights from Washington to New Hampshire that are best for you.

Fly from

Washington

Fly to

New Hampshire

Route

Depart

Return

Price

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 11/15

6:00 am-4:07 pm

1 stop7h 07m

Portland

Wed 11/19

4:53 pm-10:23 pm

1 stop8h 30m

$197

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 11/14

12:59 am-3:19 pm

2 stops11h 20m

Portland

Wed 11/19

12:26 pm-11:18 pm

2 stops13h 52m

$207

PortlandBoston

PDX - BOS

PDXBOS

Portland

Tue 11/18

12:35 am-10:56 am

1 stop7h 21m

Boston Logan Intl

Sun 11/23

5:50 am-12:48 pm

1 stop9h 58m

$218

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 11/13

5:25 am-10:19 pm

2 stops13h 54m

Portland

Mon 11/17

4:53 pm-12:01 am

2 stops10h 08m

$227

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 11/18

11:10 pm-12:08 pm

1 stop9h 58m

Portland

Thu 12/4

6:15 am-2:19 pm

1 stop11h 04m

$229

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 11/17

11:10 pm-12:08 pm

1 stop9h 58m

Portland

Thu 12/4

4:53 pm-10:25 pm

1 stop8h 32m

$229

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sun 11/16

11:10 pm-7:29 am

Nonstop5h 19m

Boston Logan Intl

Thu 12/4

6:59 pm-10:30 pm

Nonstop6h 31m

$237

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 3/10

6:05 am-4:15 pm

1 stop7h 10m

Portland

Wed 3/11

2:35 pm-10:16 pm

1 stop10h 41m

$241

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 12/4

9:00 am-5:20 pm

Nonstop5h 20m

Boston Logan Intl

Wed 12/10

6:52 pm-9:52 am

1 stop18h 00m

$247

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 11/15

5:20 am-3:24 pm

1 stop7h 04m

Boston Logan Intl

Fri 12/5

9:00 am-12:35 pm

Nonstop6h 35m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 60 results
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Best time to book a flight from Washington to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Washington 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 Washington to New Hampshire

What is the cheapest month to book a flight from State of Washington to New Hampshire?

Currently, September is the cheapest month in which you can book a flight from State of Washington to New Hampshire (average of $134). Flying from State of Washington to New Hampshire in May is currently the most expensive (average of $483). 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 WA to NH?

Find hourly flight availability from Washington 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 October 30, 2025.

When flying from State of Washington to New Hampshire, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 46% versus a flight in the morning.

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 October 30, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Washington to New Hampshire to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Washington to New Hampshire. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to New Hampshire?

    Delta, American Airlines, and Alaska Airlines can get you from State of Washington to New Hampshire in just under 5h 19m. Your travel time can differ by up to 6h 01m. The distance between State of Washington and New Hampshire is about 2487 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to New Hampshire one-way?

    $109 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and United Airlines, with prices starting from $119 and $129, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to New Hampshire?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to New Hampshire (average of $134). Flying from State of Washington to New Hampshire in May is currently the most expensive (average of $483). 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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Top 3 airlines flying from Washington to New Hampshire

Discover the top 3 airlines that operate flights from Washington 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$283Average$492FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$328Average$442FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$333Average$559FlexibilityNo cancel feeOn-time71%

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