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New Hampshire

$142+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Jun 5 — Jun 121
Fri 6/5
Fri 6/12
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 May 6, 2026.

This SmartFares deal was found by Cheapflights users on 5/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:46 pm
PDX
-
BOS
Nonstop5h 34m
Alaska Airlines
Sat 5/306:00 am
BOS
-
PDX
Nonstop6h 11m
Alaska Airlines
Deal found 5/3$259
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/2510:59 pm
PDX
-
BOS
1 stop7h 28m
American Airlines
Fri 5/296:00 am
BOS
-
PDX
1 stop8h 34m
American Airlines
Deal found 5/1$262
This American Airlines deal was found by Cheapflights users on 5/4. 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 8/410:57 pm
PDX
-
BOS
1 stop7h 33m
American Airlines
Tue 8/115:44 pm
BOS
-
PDX
1 stop9h 12m
American Airlines
Deal found 5/4$272
This Southwest deal was found by Cheapflights users on 5/5. 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.
Mon 6/87:40 pm
PDX
-
BOS
2 stops9h 20m
Southwest
Sat 6/132:10 pm
BOS
-
PDX
1 stop11h 35m
Southwest
Deal found 5/5$273
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/2910:33 am
PDX
-
BOS
1 stop8h 20m
United Airlines
Mon 6/14:15 pm
BOS
-
PDX
1 stop8h 33m
United Airlines
Deal found 5/1$276
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/512:34 pm
PDX
-
BOS
1 stop8h 14m
American Airlines
Sun 6/145:31 am
BOS
-
PDX
1 stop9h 03m
American Airlines
Deal found 5/4$277
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sat 5/2311:40 pm
PDX
-
BOS
1 stop8h 25m
United Airlines
Mon 6/14:15 pm
BOS
-
PDX
1 stop8h 33m
United Airlines
Deal found 5/4$278
This United Airlines deal was found by Cheapflights users on 5/4. 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 7/1410:40 pm
PDX
-
BOS
1 stop7h 49m
United Airlines
Tue 7/216:00 am
BOS
-
PDX
1 stop9h 07m
United Airlines
Deal found 5/4$280
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Thu 10/296:59 pm
PDX
-
BOS
1 stop7h 59m
United Airlines
Sat 11/77:30 am
BOS
-
PDX
1 stop8h 45m
United Airlines
Deal found 5/5$281
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:30 pm
PDX
-
BOS
Nonstop5h 26m
JetBlue
Sat 5/3010:06 am
BOS
-
PDX
Nonstop6h 04m
JetBlue
Deal found 5/5$282
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:35 am
SEA
-
BOS
Nonstop5h 39m
JetBlue
Tue 6/97:00 am
BOS
-
SEA
Nonstop6h 15m
JetBlue
Deal found 5/1$282
This Super.com deal was found by Cheapflights users on 5/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:35 am
SEA
-
BOS
Nonstop5h 39m
JetBlue
Wed 6/37:00 am
BOS
-
SEA
Nonstop6h 17m
JetBlue
Deal found 5/3$283

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 May 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(SmartFares)

One-way from

$142
(Super.com)

Popular in

December

Cheapest in

September

Average price

$367
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. 10% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 6, 2026.
Use the filters below to find and compare flights from Washington to New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBoston

PDX - BOS

PDXBOS

Portland

Fri 5/29

10:33 am-9:53 pm

1 stop8h 20m

Boston Logan Intl

Mon 6/1

4:15 pm-9:48 pm

1 stop8h 33m

$276

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Fri 5/29

12:46 pm-11:59 pm

1 stop8h 13m

Boston Logan Intl

Tue 6/2

6:00 am-11:52 am

1 stop8h 52m

$293

PortlandBoston

PDX - BOS

PDXBOS

Portland

Tue 9/22

11:30 pm-12:40 pm

2 stops10h 10m

Boston Logan Intl

Tue 9/29

5:25 am-10:40 am

1 stop8h 15m

$297

PortlandBoston

PDX - BOS

PDXBOS

Portland

Mon 6/29

11:30 pm-12:15 pm

1 stop9h 45m

Boston Logan Intl

Sun 7/5

5:30 am-2:20 pm

1 stop11h 50m

$303

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Fri 8/21

5:14 pm-6:30 am

1 stop10h 16m

Boston Logan Intl

Tue 8/25

7:45 am-3:19 pm

1 stop10h 34m

$310

PortlandBoston

PDX - BOS

PDXBOS

Portland

Fri 7/3

6:00 am-3:50 pm

1 stop6h 50m

Boston Logan Intl

Fri 7/3

6:45 pm-11:55 pm

1 stop8h 10m

$327

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Thu 7/16

1:00 pm-12:17 am

1 stop8h 17m

Boston Logan Intl

Sun 7/19

5:55 am-11:39 am

1 stop8h 44m

$329
Quickest round-trip

PortlandBoston

PDX - BOS

PDXBOS

Portland

Mon 6/29

11:29 pm-7:52 am

Nonstop5h 23m

Boston Logan Intl

Fri 7/3

7:19 pm-10:34 pm

Nonstop6h 15m

$352

PortlandBoston

PDX - BOS

PDXBOS

Portland

Thu 5/28

10:40 pm-1:12 pm

2 stops11h 32m

Boston Logan Intl

Wed 6/3

6:00 am-12:10 pm

1 stop9h 10m

$352

PortlandBoston

PDX - BOS

PDXBOS

Portland

Sat 8/22

10:35 am-1:05 am

2 stops11h 30m

Boston Logan Intl

Sat 10/3

6:00 am-2:36 pm

1 stop11h 36m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 $98). Flying from State of Washington to New Hampshire in February 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.

How much does it cost to fly round-trip from State of Washington to New Hampshire?

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 May 6, 2026.
Peruse reviews from past customers who have flown with Southwest 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
4,305 reviews

Overall

7.9

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
7.9
Good
4,305 reviews
Southwest
7.9
Good
4,305 reviews

Overall

7.9

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,668 reviews
Southwest
7.9
Good
4,305 reviews

Overall

7.9

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    United Airlines, Alaska Airlines, and Southwest can get you from State of Washington to New Hampshire in just under 8h 13m. Your travel time can differ by up to 1h 57m. The distance between State of Washington and New Hampshire is about 2266 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 $98). Flying from State of Washington to New Hampshire in February 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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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 2 airlines flying from Washington to New Hampshire

Discover the top 2 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 May 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$286Average$598FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$377Average$532FlexibilityNo cancel feeOn-time63%

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