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Cheap flights from New Hampshire to Seattle from $121

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Hampshire to Seattle departing on 3/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from New Hampshire to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:51 pm - 12:51 am
PWM
-
SEA
10h 00m
1 stop
American Airlines Logo
11:16 am - 11:27 pm
SEA
-
PWM
9h 11m
1 stop
$241American Airlines
sáb., abr. 25 - sáb., may. 2
United Airlines Logo
3:10 pm - 11:51 pm
PWM
-
SEA
11h 41m
1 stop
United Airlines Logo
7:00 am - 11:20 pm
SEA
-
PWM
13h 20m
2 stops
$246United Airlines
vie., feb. 20 - mié., feb. 25
Delta Logo
2:35 pm - 8:00 pm
PWM
-
SEA
8h 25m
1 stop
Delta Logo
2:00 pm - 12:18 am
SEA
-
PWM
7h 18m
1 stop
$251Delta
mié., feb. 25 - mié., mar. 4
Delta Logo
7:30 am - 8:30 pm
BOS
-
SEA
16h 00m
1 stop
Delta Logo
7:30 am - 3:59 pm
SEA
-
BOS
5h 29mnonstop
$271Delta
mié., mar. 4 - sáb., mar. 7
Delta Logo
6:57 pm - 10:25 pm
BOS
-
SEA
6h 28mnonstop
Delta Logo
7:20 am - 3:42 pm
SEA
-
BOS
5h 22mnonstop
$272Delta
mié., mar. 4 - dom., mar. 8
United Airlines Logo
6:34 pm - 11:57 pm
BOS
-
SEA
8h 23m
1 stop
United Airlines Logo
10:40 pm - 9:39 am
SEA
-
BOS
7h 59m
1 stop
$273United Airlines
mié., may. 20 - mar., may. 26
Hawaiian Airlines Logo
7:00 am - 10:33 am
BOS
-
SEA
6h 33mnonstop
Hawaiian Airlines Logo
8:15 am - 4:36 pm
SEA
-
BOS
5h 21mnonstop
$275Hawaiian Airlines
sáb., feb. 28 - sáb., mar. 7
Alaska Airlines Logo
5:44 pm - 9:28 am
BOS
-
SEA
18h 44m
1 stop
Alaska Airlines Logo
10:40 pm - 6:54 am
SEA
-
BOS
5h 14mnonstop
$282Alaska Airlines
vie., mar. 6 - mar., mar. 10
Multiple Airlines Logo
2:09 pm - 10:00 pm
LEB
-
SEA
10h 51m
1 stop
Multiple Airlines Logo
10:40 pm - 9:53 am
SEA
-
LEB
8h 13m
1 stop
$510Multiple Airlines
lun., mar. 2 - lun., mar. 9
Multiple Airlines Logo
2:09 pm - 10:00 pm
LEB
-
SEA
10h 51m
1 stop
Multiple Airlines Logo
10:40 pm - 9:53 am
SEA
-
LEB
8h 13m
1 stop
$520Multiple Airlines
vie., mar. 13 - mar., mar. 17

JetBlue flights from New Hampshire to Seattle

Our best JetBlue deals on New Hampshire to Seattle flight tickets
JetBlue
May 27
BOS7:00 amBoston Logan Intl
6h 20m
SEA10:20 amSeattle/Tacoma Intl
Jun 3
SEA11:59 pmSeattle/Tacoma Intl
11h 21m
1 stop
BOS2:20 pmBoston Logan Intl
$286
JetBlue
May 27
BOS7:00 amBoston Logan Intl
6h 20m
SEA10:20 amSeattle/Tacoma Intl
Jun 2
SEA11:59 pmSeattle/Tacoma Intl
11h 21m
1 stop
BOS2:20 pmBoston Logan Intl
$287
JetBlue
May 19
BOS7:00 amBoston Logan Intl
6h 20m
SEA10:20 amSeattle/Tacoma Intl
May 26
SEA11:59 pmSeattle/Tacoma Intl
11h 21m
1 stop
BOS2:20 pmBoston Logan Intl
$316

American Airlines flights from New Hampshire to Seattle

Our best American Airlines deals on New Hampshire to Seattle flight tickets
American Airlines
Feb 28
BOS4:49 pmBoston Logan Intl
9h 15m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
Mar 6
SEA12:07 amSeattle/Tacoma Intl
7h 39m
1 stop
BOS10:46 amBoston Logan Intl
$275
American Airlines
Feb 28
BOS5:54 pmBoston Logan Intl
9h 30m
1 stop
SEA12:24 amSeattle/Tacoma Intl
Mar 6
SEA12:07 amSeattle/Tacoma Intl
7h 39m
1 stop
BOS10:46 amBoston Logan Intl
$276
American Airlines
Feb 28
BOS4:49 pmBoston Logan Intl
10h 35m
1 stop
SEA12:24 amSeattle/Tacoma Intl
Mar 6
SEA12:07 amSeattle/Tacoma Intl
7h 39m
1 stop
BOS10:46 amBoston Logan Intl
$277

momondo Fare Finder

 
Customize your flight search to find flights from New Hampshire to Seattle 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, momondo users made 832,500 searches. Data last updated febrero 5, 2026.
Use the filters below to find and compare flights from New Hampshire to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSeattle

PWM - SEA

PWMSEA

Portland

sáb. 4/25

5:51 pm-12:51 am

1 stop10h 00m

Seattle/Tacoma Intl

sáb. 5/2

11:16 am-11:27 pm

1 stop9h 11m

$241

PortlandSeattle

PWM - SEA

PWMSEA

Portland

vie. 2/20

3:10 pm-11:51 pm

1 stop11h 41m

Seattle/Tacoma Intl

mié. 2/25

7:00 am-11:20 pm

2 stops13h 20m

$246

PortlandSeattle

PWM - SEA

PWMSEA

Portland

mié. 2/25

2:35 pm-8:00 pm

1 stop8h 25m

Seattle/Tacoma Intl

mié. 3/4

2:00 pm-12:18 am

1 stop7h 18m

$251

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 3/4

7:30 am-8:30 pm

1 stop16h 00m

Seattle/Tacoma Intl

sáb. 3/7

7:30 am-3:59 pm

Nonstop5h 29m

$271

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 3/4

6:57 pm-10:25 pm

Nonstop6h 28m

Seattle/Tacoma Intl

dom. 3/8

7:20 am-3:42 pm

Nonstop5h 22m

$272

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 5/20

6:34 pm-11:57 pm

1 stop8h 23m

Seattle/Tacoma Intl

mar. 5/26

10:40 pm-9:39 am

1 stop7h 59m

$273

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 2/28

7:00 am-10:33 am

Nonstop6h 33m

Seattle/Tacoma Intl

sáb. 3/7

8:15 am-4:36 pm

Nonstop5h 21m

$275

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 3/6

5:44 pm-9:28 am

1 stop18h 44m

Seattle/Tacoma Intl

mar. 3/10

10:40 pm-6:54 am

Nonstop5h 14m

$282

LebanonSeattle

LEB - SEA

LEBSEA

Lebanon Municipal

lun. 3/2

2:09 pm-10:00 pm

1 stop10h 51m

Seattle/Tacoma Intl

lun. 3/9

10:40 pm-9:53 am

1 stop8h 13m

$510

LebanonSeattle

LEB - SEA

LEBSEA

Lebanon Municipal

vie. 3/13

2:09 pm-10:00 pm

1 stop10h 51m

Seattle/Tacoma Intl

mar. 3/17

10:40 pm-9:53 am

1 stop8h 13m

$520

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from New Hampshire to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, March is the cheapest month to fly from New Hampshire to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $282. If you don’t want to visit Seattle in March, then you should wait until September to fly from New Hampshire, when ticket prices are also cheap, with an average price of $317.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from New Hampshire is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $404. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from New Hampshire because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $504.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from New Hampshire in the evening is the least expensive time of day to depart. momondo users have found prices as low as $332 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $463. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $369 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from New Hampshire for as low as $312 on momondo.

Can stopping save me money on New Hampshire to Seattle flights?

You could potentially save up to 20% on your flight if you consider stops on a New Hampshire to Seattle flight.

Cheap New Hampshire to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New Hampshire to Seattle

Fastest flight time

6h 05m

Direct flights

Every day

Airports in Seattle

1 airport
The fastest flight from New Hampshire to Seattle takes 6h 05m
Direct flights go from New Hampshire to Seattle every day.
There is 1 airport in Seattle. From New Hampshire there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • When did momondo last update prices for flights from New Hampshire to Seattle/Tacoma Intl Airport?

    Prices for flights from New Hampshire to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from New Hampshire to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from New Hampshire to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from New Hampshire to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from New Hampshire to Seattle

Compare and see reviews for airlines that fly from New Hampshire to Seattle with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $342Free CancellationRating
7.4
9,241 reviews
Search United Airlines flights
American AirlinesPriceFrom $344Free CancellationRating
7.2
11,240 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $347Free CancellationRating
8.0
11,843 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $379Free CancellationRating
8.0
4,276 reviews
Search Southwest flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Redmond
Puyallup
Cle Elum
Tukwila
Lakewood
Federal Way
Westport
Kirkland
Centralia
Fife
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from New Hampshire to Seattle?

Finding the right flight to Seattle from New Hampshire is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from New Hampshire to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from New Hampshire which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from New Hampshire to Seattle?

Once you have performed a search for New Hampshire to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from New Hampshire to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from New Hampshire are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Seattle trip

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