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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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
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 enero 29, 2026.

This Delta deal was found by Cheapflights users on 1/27. 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.
vie. 2/277:35 pm
PDX
-
BOS
1 stop8h 15m
Delta
mié. 3/46:57 pm
BOS
-
PDX
1 stop8h 18m
Delta
Deal found 1/27$197
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/81:14 pm
PDX
-
BOS
1 stop8h 08m
American Airlines
lun. 4/135:43 pm
BOS
-
PDX
1 stop8h 58m
American Airlines
Deal found 1/28$208
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
mié. 4/19:30 pm
PDX
-
BOS
Nonstop5h 23m
Alaska Airlines
mar. 4/76:00 am
BOS
-
PDX
Nonstop6h 23m
Alaska Airlines
Deal found 1/27$217
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/65:30 am
PDX
-
BOS
1 stop7h 29m
Delta
jue. 3/121:55 pm
BOS
-
PDX
1 stop11h 28m
Delta
Deal found 1/28$218
This American Airlines deal was found by Cheapflights users on 1/27. 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.
lun. 2/1611:35 pm
PDX
-
BOS
1 stop7h 19m
American Airlines
vie. 2/205:31 pm
BOS
-
PDX
1 stop9h 46m
American Airlines
Deal found 1/27$219
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 3/311:35 pm
PDX
-
BOS
1 stop7h 24m
Alaska Airlines
mar. 4/76:00 am
BOS
-
PDX
Nonstop6h 23m
Alaska Airlines
Deal found 1/27$227
This Delta deal was found by Cheapflights users on 1/27. 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.
vie. 3/2710:42 am
PDX
-
BOS
1 stop10h 17m
Delta
mié. 4/16:15 am
BOS
-
PDX
1 stop9h 18m
Delta
Deal found 1/27$228
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
mié. 4/19:30 pm
PDX
-
BOS
Nonstop5h 23m
Alaska Airlines
vie. 4/106:00 am
BOS
-
PDX
Nonstop6h 23m
Alaska Airlines
Deal found 1/27$237
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/58:05 pm
PDX
-
BOS
1 stop7h 45m
Delta
mié. 4/155:50 am
BOS
-
PDX
1 stop9h 59m
Delta
Deal found 1/28$238
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/105:30 am
PDX
-
BOS
1 stop7h 24m
Delta
vie. 10/163:30 pm
BOS
-
PDX
1 stop11h 22m
Delta
Deal found 1/28$239
This Delta deal was found by Cheapflights users on 1/27. 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.
mié. 2/41:45 pm
SEA
-
PWM
1 stop7h 35m
Delta
sáb. 2/72:35 pm
PWM
-
SEA
1 stop10h 50m
Delta
Deal found 1/27$241
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/411:59 pm
PDX
-
BOS
1 stop7h 50m
United Airlines
mié. 3/116:00 am
BOS
-
PDX
2 stops10h 44m
United Airlines
Deal found 1/29$242

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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Delta)

One-way from

$99
(Delta)

Popular in

December

Cheapest in

March

Average price

$329
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. 12% potential increase in price ($50 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 January 2026
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 enero 29, 2026.
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

PortlandBoston

PDX - BOS

PDXBOS

Portland

mié. 4/15

6:15 am-5:04 pm

1 stop7h 49m

Boston Logan Intl

mié. 4/29

10:55 am-6:52 pm

1 stop10h 57m

$197

PortlandBoston

PDX - BOS

PDXBOS

Portland

lun. 3/2

5:30 am-3:59 pm

1 stop7h 29m

Boston Logan Intl

mié. 3/11

8:05 am-12:48 pm

1 stop7h 43m

$197

PortlandBoston

PDX - BOS

PDXBOS

Portland

sáb. 4/11

5:36 pm-6:50 am

1 stop10h 14m

Boston Logan Intl

sáb. 5/2

11:51 am-5:32 pm

1 stop8h 41m

$197

PortlandBoston

PDX - BOS

PDXBOS

Portland

vie. 2/27

12:40 am-10:50 am

1 stop7h 10m

Boston Logan Intl

mié. 3/4

6:57 pm-12:15 am

1 stop8h 18m

$197

PortlandBoston

PDX - BOS

PDXBOS

Portland

mar. 2/24

7:35 pm-6:50 am

1 stop8h 15m

Boston Logan Intl

dom. 3/1

6:57 pm-12:15 am

1 stop8h 18m

$228

PortlandBoston

PDX - BOS

PDXBOS

Portland

vie. 2/27

7:11 pm-6:00 am

1 stop7h 49m

Boston Logan Intl

jue. 3/5

6:57 pm-12:15 am

1 stop8h 18m

$228

PortlandBoston

PDX - BOS

PDXBOS

Portland

mié. 5/27

10:40 pm-9:39 am

1 stop7h 59m

Boston Logan Intl

sáb. 6/6

4:55 pm-10:55 pm

1 stop9h 00m

$237

PortlandBoston

PDX - BOS

PDXBOS

Portland

mar. 3/3

11:59 pm-12:53 pm

2 stops9h 54m

Boston Logan Intl

mar. 3/10

6:00 am-11:51 am

1 stop8h 51m

$242

PortlandBoston

PDX - BOS

PDXBOS

Portland

mar. 4/7

11:55 pm-12:15 pm

2 stops9h 20m

Boston Logan Intl

mar. 4/14

7:20 am-12:30 pm

1 stop8h 10m

$253

PortlandBoston

PDX - BOS

PDXBOS

Portland

vie. 4/3

9:30 pm-5:53 am

Nonstop5h 23m

Boston Logan Intl

vie. 4/10

6:00 am-9:23 am

Nonstop6h 23m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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 $137). 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.

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 enero 29, 2026.
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
4,267 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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, American Airlines, and Alaska Airlines can get you from State of Washington to New Hampshire in just under 7h 49m. Your travel time can differ by up to 59m. The distance between State of Washington and New Hampshire is about 2528 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $137). 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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$442FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$333Average$543FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$377Average$516FlexibilityNo cancel feeOn-time63%

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