What is the cheapest airline that flies from Seattle/Tacoma Intl to New Hampshire?

Delta, American Airlines, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to New Hampshire

How many flights depart from Seattle to New Hampshire on average per week?

As of July 2025, there are 240 flights per week flying from Seattle to New Hampshire. The most common day of the week flights depart is Thu, with 16% of flights taking off on this day.

What airlines fly to New Hampshire?

American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to New Hampshire from Seattle according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to New Hampshire. Keep in mind that there are 4 different airlines that fly to New Hampshire on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Seattle/Tacoma Intl Airport to New Hampshire are updated daily.

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

There are 9 operators available for flights from Seattle/Tacoma Intl Airport to New Hampshire as of July 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to New Hampshire.

What documentation or ID do you need to fly to New Hampshire?

The necessary travel and health documents for your New Hampshire trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$109 Cheap Flights from Seattle to New Hampshire in 2025

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Find the cheapest flights from Seattle to New Hampshire

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

11:30 am - 8:23 pmSEA-BOS

5h 53mnonstop

7:00 am - 10:19 amBOS-SEA

6h 19mnonstop

$200JetBlue

Find Deal

sáb., sep. 20 - sáb., sep. 27

3:59 pm - 12:27 amSEA-BOS

5h 28mnonstop

7:20 am - 10:33 amBOS-SEA

6h 13mnonstop

$205

Find Deal

sáb., sep. 13 - sáb., sep. 20

6:05 am - 5:04 pmSEA-BOS

7h 59m1 stop

11:28 am - 5:29 pmBOS-SEA

9h 01m1 stop

$235American Airlines

Find Deal

sáb., sep. 20 - sáb., sep. 27

10:11 am - 10:40 pmSEA-BOS

9h 29m1 stop

8:05 am - 2:48 pmBOS-SEA

9h 43m1 stop

$236American Airlines

Find Deal

sáb., sep. 20 - sáb., sep. 27

9:40 pm - 3:00 pmSEA-BOS

14h 20m1 stop

7:45 am - 4:51 pmBOS-SEA

12h 06m1 stop

$246Alaska Airlines

Find Deal

lun., sep. 15 - mar., sep. 23

11:54 pm - 11:01 amSEA-BOS

8h 07m1 stop

4:27 pm - 10:20 pmBOS-SEA

8h 53m1 stop

$252United Airlines

Find Deal

lun., ago. 25 - mié., sep. 3

7:52 am - 6:41 amSEA-BOS

19h 49m1 stop

8:25 pm - 10:34 amBOS-SEA

17h 09m1 stop

$256Alaska Airlines

Find Deal

dom., oct. 19 - mar., oct. 21

11:10 pm - 10:00 amSEA-BOS

7h 50m1 stop

6:30 pm - 12:05 amBOS-SEA

8h 35m1 stop

$267Southwest

Find Deal

jue., sep. 11 - vie., sep. 19

5:45 am - 9:55 pmSEA-BOS

13h 10m2 stops

5:30 am - 1:25 pmBOS-SEA

10h 55m1 stop

$278Southwest

Find Deal

sáb., nov. 8 - mié., nov. 12

11:54 pm - 3:02 pmSEA-MHT

12h 08m2 stops

1:30 pm - 10:20 pmMHT-SEA

11h 50m2 stops

$360United Airlines

Find Deal

mié., ago. 27 - dom., ago. 31

Hawaiian Airlines flights from Seattle to New Hampshire

Our best Hawaiian Airlines deals on Seattle to New Hampshire flight tickets

Hawaiian Airlines

Sep 20

SEA3:59 pmSeattle/Tacoma Intl

5h 28m

BOS12:27 amBoston Logan Intl

Sep 27

BOS6:55 pmBoston Logan Intl

6h 13m

SEA10:08 pmSeattle/Tacoma Intl

$213

Find similar

Hawaiian Airlines

Sep 20

SEA3:59 pmSeattle/Tacoma Intl

5h 28m

BOS12:27 amBoston Logan Intl

Sep 27

BOS7:20 amBoston Logan Intl

6h 13m

SEA10:33 amSeattle/Tacoma Intl

$214

Find similar

Hawaiian Airlines

Sep 20

SEA3:59 pmSeattle/Tacoma Intl

5h 28m

BOS12:27 amBoston Logan Intl

Sep 27

BOS6:55 pmBoston Logan Intl

6h 13m

SEA10:08 pmSeattle/Tacoma Intl

$215

Find similar

Alaska Airlines flights from Seattle to New Hampshire

Our best Alaska Airlines deals on Seattle to New Hampshire flight tickets

Alaska Airlines

Sep 15

SEA9:40 pmSeattle/Tacoma Intl

14h 20m

1 stop

BOS3:00 pmBoston Logan Intl

Sep 23

BOS7:45 amBoston Logan Intl

12h 06m

1 stop

SEA4:51 pmSeattle/Tacoma Intl

$246

Find similar

Alaska Airlines

Oct 19

SEA7:52 amSeattle/Tacoma Intl

19h 49m

1 stop

BOS6:41 amBoston Logan Intl

Oct 21

BOS8:25 pmBoston Logan Intl

17h 09m

1 stop

SEA10:34 amSeattle/Tacoma Intl

$256

Find similar

Alaska Airlines

Sep 19

SEA7:50 amSeattle/Tacoma Intl

19h 10m

1 stop

BOS6:00 amBoston Logan Intl

Sep 22

BOS8:23 pmBoston Logan Intl

14h 44m

1 stop

SEA8:07 amSeattle/Tacoma Intl

$266

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 9/20

11:30 am-8:23 pm

Nonstop5h 53m

Boston Logan Intl

sáb. 9/27

7:00 am-10:19 am

Nonstop6h 19m

$200

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 9/13

3:59 pm-12:27 am

Nonstop5h 28m

Boston Logan Intl

sáb. 9/20

7:20 am-10:33 am

Nonstop6h 13m

$205

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 9/20

6:05 am-5:04 pm

1 stop7h 59m

Boston Logan Intl

sáb. 9/27

11:28 am-5:29 pm

1 stop9h 01m

$235

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 9/20

10:11 am-10:40 pm

1 stop9h 29m

Boston Logan Intl

sáb. 9/27

8:05 am-2:48 pm

1 stop9h 43m

$236

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

lun. 9/15

9:40 pm-3:00 pm

1 stop14h 20m

Boston Logan Intl

mar. 9/23

7:45 am-4:51 pm

1 stop12h 06m

$246

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

lun. 8/25

11:54 pm-11:01 am

1 stop8h 07m

Boston Logan Intl

mié. 9/3

4:27 pm-10:20 pm

1 stop8h 53m

$252

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

dom. 10/19

7:52 am-6:41 am

1 stop19h 49m

Boston Logan Intl

mar. 10/21

8:25 pm-10:34 am

1 stop17h 09m

$256

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

jue. 9/11

11:10 pm-10:00 am

1 stop7h 50m

Boston Logan Intl

vie. 9/19

6:30 pm-12:05 am

1 stop8h 35m

$267

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 11/8

5:45 am-9:55 pm

2 stops13h 10m

Boston Logan Intl

mié. 11/12

5:30 am-1:25 pm

1 stop10h 55m

$278

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

mié. 8/27

11:54 pm-3:02 pm

2 stops12h 08m

Manchester

dom. 8/31

1:30 pm-10:20 pm

2 stops11h 50m

$360

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

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

Prices

Airlines

Other information

What is the cheapest month to fly to New Hampshire?

The month of March is another great option to travel to New Hampshire, with average flight prices from Seattle averaging around $267.

What is the cheapest day to depart on your flight to New Hampshire?

The cheapest day to depart on your flight to New Hampshire is on a Wednesday when prices can be found for as low as $346. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Sunday, with ticket prices averaging around $426.

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

According to our data, the cheapest time of day to fly to New Hampshire is in the afternoon. momondo users have found flights departing from Seattle to New Hampshire in the afternoon for as low as $331. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $413. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to New Hampshire?

You are more likely to see cheaper flights to New Hampshire from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to New Hampshire for around $352 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Hampshire from Seattle for as low as $308 on momondo.

Cheap Seattle to New Hampshire flight deals and tips

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

Best Price Found	$109
Fastest flight time	5h 15m
Direct flights	Every day
Airports in New Hampshire	3 airports

The best one-way flight to New Hampshire from Seattle in the past 72 hours is $109. The best round-trip flight deal from Seattle to New Hampshire found on momondo in the last 72 hours is $200.

The fastest flight from Seattle to New Hampshire takes 5h 15m

Direct flights go from Seattle to New Hampshire every day.

There are 3 airports near New Hampshire: Boston Logan Intl (BOS), Portland (PWM), Manchester (MHT)

Search flight deals

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to New Hampshire?
Prices for flights from Seattle/Tacoma Intl Airport to New Hampshire are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to New Hampshire?
There are 9 operators available for flights from Seattle/Tacoma Intl Airport to New Hampshire as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to New Hampshire?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to New Hampshire.
What documentation or ID do you need to fly to New Hampshire?
The necessary travel and health documents for your New Hampshire trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to New Hampshire

Compare and see reviews for airlines that fly from Seattle to New Hampshire with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $336	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Southwest	PriceFrom $416	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $487	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to New Hampshire from Seattle 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 New Hampshire quick and easy, saving you time and money.

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

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

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

Once all potential Seattle to New Hampshire flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Seattle to New Hampshire now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to New Hampshire and let you know when they change.

An easier way to manage your New Hampshire trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Find better results for your trip to New Hampshire

Popular cities in New Hampshire

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Flights to Seattlefrom $93

Cheap flights from Seattle to New Hampshire from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to New Hampshire departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to New Hampshire

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Hawaiian Airlines flights from Seattle to New Hampshire

Our best Hawaiian Airlines deals on Seattle to New Hampshire flight tickets

Alaska Airlines flights from Seattle to New Hampshire

Our best Alaska Airlines deals on Seattle to New Hampshire flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to New Hampshire that are best for you.

See travel insights to New Hampshire from

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

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 New Hampshire?

The month of March is another great option to travel to New Hampshire, with average flight prices from Seattle averaging around $267.

What is the cheapest day to depart on your flight to New Hampshire?

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

How far in advance should I book a flight to New Hampshire?

What is the cheapest airline that flies from Seattle/Tacoma Intl to New Hampshire?

Delta, American Airlines, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to New Hampshire

What airlines fly to New Hampshire?

How many flights depart from Seattle to New Hampshire on average per week?

As of July 2025, there are 240 flights per week flying from Seattle to New Hampshire. The most common day of the week flights depart is Thu, with 16% of flights taking off on this day.

Cheap Seattle to New Hampshire flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in New Hampshire

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

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

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

What documentation or ID do you need to fly to New Hampshire?

Best airlines flying from Seattle to New Hampshire

Compare and see reviews for airlines that fly from Seattle to New Hampshire with momondo

Why use momondo?

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

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

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

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

An easier way to manage your New Hampshire trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to New Hampshire

Popular cities in New Hampshire

Popular flights according to clicks in the last 7 days on momondo