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New Hampshire

$99+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Delta deal was found by Cheapflights users on 12/17. 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 12/245:30 amPDX - BOS
1 stop7h 33mDelta
Wed 1/75:20 pmBOS - PDX
1 stop9h 57mDelta
Deal found 12/17$337
This Delta deal was found by Cheapflights users on 12/17. 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.
Sun 12/285:30 amPDX - BOS
1 stop7h 38mDelta
Wed 1/74:25 pmBOS - PDX
1 stop9h 29mDelta
Deal found 12/17$347
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/265:00 amPDX - BOS
1 stop7h 35mUnited Airlines
Wed 1/710:30 amBOS - PDX
1 stop11h 26mUnited Airlines
Deal found 12/17$357
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/2411:59 pmPDX - BOS
1 stop10h 37mAmerican Airlines
Wed 1/76:00 amBOS - PDX
1 stop10h 41mAmerican Airlines
Deal found 12/17$383
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Tue 12/303:59 pmSEA - BOS
Nonstop5h 24mAlaska Airlines
Tue 1/67:30 amBOS - SEA
Nonstop6h 22mAlaska Airlines
Deal found 12/15$386
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/3112:44 pmSEA - BOS
1 stop7h 51mUnited Airlines
Mon 1/57:15 amBOS - SEA
1 stop9h 43mUnited Airlines
Deal found 12/16$389
This Orbitz deal was found by Cheapflights users on 12/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:26 pmPDX - BOS
1 stop11h 57mMultiple Airlines
Wed 1/75:20 pmBOS - PDX
Nonstop6h 28mMultiple Airlines
Deal found 12/17$390
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/299:32 amSEA - BOS
1 stop22h 19mSun Country Air
Thu 1/111:49 amBOS - SEA
1 stop8h 23mSun Country Air
Deal found 12/16$396
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/245:05 amGEG - BOS
2 stops10h 08mUnited Airlines
Thu 1/15:20 amBOS - GEG
2 stops10h 25mUnited Airlines
Deal found 12/16$397
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/216:47 amGEG - BOS
1 stop13h 14mAmerican Airlines
Sat 1/106:00 amBOS - GEG
1 stop11h 09mAmerican Airlines
Deal found 12/16$414
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/246:32 pmSEA - BOS
1 stop11h 51mMultiple Airlines
Wed 1/712:29 pmBOS - SEA
2 stops25h 52mMultiple Airlines
Deal found 12/16$419
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/246:32 pmSEA - BOS
1 stop11h 51mMultiple Airlines
Tue 1/64:45 pmBOS - SEA
1 stop10h 56mMultiple Airlines
Deal found 12/16$427

Find 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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$208
(American Airlines)

One-way from

$99
(Delta)

Popular in

December

Cheapest in

January

Average price

$529
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
Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

Tue 1/27

1:45 pm-12:20 am

1 stop7h 35m

Portland

Sat 1/31

2:35 pm-10:25 pm

1 stop10h 50m

$221

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 1/24

11:10 pm-12:03 pm

1 stop9h 53m

Portland

Wed 1/28

2:35 pm-10:25 pm

1 stop10h 50m

$221

PortlandBoston

PDX - BOS

PDXBOS

Portland

Tue 1/6

6:20 am-8:50 pm

2 stops11h 30m

Boston Logan Intl

Tue 1/13

4:50 pm-10:15 pm

1 stop8h 25m

$224

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 1/24

9:45 pm-12:06 pm

2 stops11h 21m

Portland

Wed 1/28

3:58 pm-10:07 pm

1 stop9h 09m

$226

PortlandBoston

PDX - BOS

PDXBOS

Portland

Fri 1/9

7:00 am-5:19 pm

1 stop7h 19m

Boston Logan Intl

Mon 1/12

9:30 am-6:10 pm

2 stops11h 40m

$242

PortlandBoston

PDX - BOS

PDXBOS

Portland

Fri 1/16

11:59 pm-1:20 pm

2 stops10h 21m

Boston Logan Intl

Wed 1/21

4:15 pm-9:49 pm

1 stop8h 34m

$242

PortlandBoston

PDX - BOS

PDXBOS

Portland

Tue 2/3

8:30 am-9:38 pm

2 stops10h 08m

Boston Logan Intl

Tue 2/10

7:25 am-1:45 pm

1 stop9h 20m

$242

PortlandBoston

PDX - BOS

PDXBOS

Portland

Tue 2/10

1:24 pm-11:46 pm

1 stop7h 22m

Boston Logan Intl

Wed 2/11

6:00 am-2:46 pm

2 stops11h 46m

$242

PortlandBoston

PDX - BOS

PDXBOS

Portland

Thu 1/15

11:59 pm-1:13 pm

2 stops10h 14m

Boston Logan Intl

Thu 1/22

3:15 pm-9:12 pm

1 stop8h 57m

$242

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 1/8

1:45 pm-12:20 am

1 stop7h 35m

Portland

Mon 1/12

2:35 pm-10:25 pm

1 stop10h 50m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 April is currently the most expensive (average of $916). 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 December 18, 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 December 18, 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
7.9
Good
4,250 reviews

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,091 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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, Southwest, and American Airlines can get you from State of Washington to New Hampshire in just under 7h 35m. Your travel time can differ by up to 3h 55m. The distance between State of Washington and New Hampshire is about 2481 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?

    $118 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $153 and $162, 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 April is currently the most expensive (average of $916). 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 Washington to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$442FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$333Average$557FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$377Average$516FlexibilityNo cancel feeOn-time63%

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