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

Alaska Airlines, Southwest, and Delta 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 May 2026, there are 118 flights per week flying from Seattle to New Hampshire. The most common day of the week flights depart is Mon, with 22% of flights taking off on this day.

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 8 operators available for flights from Seattle/Tacoma Intl Airport to New Hampshire as of May 2026.

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.

$154 Cheap Flights from Seattle to New Hampshire in 2026

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Find the cheapest flights from Seattle to New Hampshire

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:35 am - 8:14 pm

SEA

BOS

5h 39mnonstop

7:00 am - 10:15 am

BOS

SEA

6h 15mnonstop

$291JetBlue

Mon, Jun 1 - Tue, Jun 9

5:15 am - 6:05 pm

SEA

BOS

9h 50m

1 stop

5:05 pm - 10:58 pm

BOS

SEA

8h 53m

1 stop

$296American Airlines

Sat, Jun 6 - Tue, Jun 9

5:10 am - 4:46 pm

SEA

BOS

8h 36m

1 stop

3:52 pm - 11:50 pm

BOS

SEA

10h 58m

1 stop

$297American Airlines

Tue, Aug 18 - Tue, Aug 25

7:25 pm - 6:20 am

SEA

BOS

7h 55m

1 stop

7:00 am - 10:15 am

BOS

SEA

6h 15mnonstop

$301Multiple Airlines

Sat, Jun 6 - Tue, Jun 9

11:55 pm - 8:19 am

SEA

BOS

5h 24mnonstop

6:59 pm - 10:38 pm

BOS

SEA

6h 39mnonstop

$302JetBlue

Tue, Sep 15 - Tue, Sep 22

11:55 pm - 8:19 am

SEA

BOS

5h 24mnonstop

6:59 pm - 10:38 pm

BOS

SEA

6h 39mnonstop

$307JetBlue

Tue, Oct 6 - Tue, Oct 13

11:30 am - 11:09 pm

SEA

PWM

8h 39m

1 stop

2:38 pm - 10:45 pm

PWM

SEA

11h 07m

1 stop

$350Delta

Fri, May 29 - Mon, Jun 1

11:04 pm - 10:04 am

SEA

PWM

8h 00m

1 stop

10:45 am - 6:21 pm

PWM

SEA

10h 36m

1 stop

$381United Airlines

Sat, Oct 17 - Sat, Oct 24

11:05 pm - 12:10 pm

SEA

MHT

10h 05m

1 stop

6:25 pm - 11:30 pm

MHT

SEA

8h 05m

1 stop

$439Southwest

Thu, Aug 20 - Fri, Aug 28

11:05 pm - 12:10 pm

SEA

MHT

10h 05m

1 stop

10:20 am - 5:35 pm

MHT

SEA

10h 15m

2 stops

$444Southwest

Thu, Aug 20 - Fri, Aug 28

JetBlue flights from Seattle to New Hampshire

Our best JetBlue deals on Seattle to New Hampshire flight tickets

JetBlue

Jun 1

SEA11:35 amSeattle/Tacoma Intl

5h 39m

BOS8:14 pmBoston Logan Intl

Jun 9

BOS7:00 amBoston Logan Intl

6h 15m

SEA10:15 amSeattle/Tacoma Intl

$291

JetBlue

Sep 15

SEA11:55 pmSeattle/Tacoma Intl

5h 24m

BOS8:19 amBoston Logan Intl

Sep 22

BOS6:59 pmBoston Logan Intl

6h 39m

SEA10:38 pmSeattle/Tacoma Intl

$302

JetBlue

May 28

SEA11:35 amSeattle/Tacoma Intl

5h 39m

BOS8:14 pmBoston Logan Intl

Jun 3

BOS7:00 amBoston Logan Intl

6h 17m

SEA10:17 amSeattle/Tacoma Intl

$307

American Airlines flights from Seattle to New Hampshire

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

American Airlines

Jun 6

SEA5:15 amSeattle/Tacoma Intl

9h 50m

1 stop

BOS6:05 pmBoston Logan Intl

Jun 9

BOS5:05 pmBoston Logan Intl

8h 53m

1 stop

SEA10:58 pmSeattle/Tacoma Intl

$296

American Airlines

Aug 4

SEA5:10 amSeattle/Tacoma Intl

9h 54m

1 stop

BOS6:04 pmBoston Logan Intl

Aug 11

BOS6:10 amBoston Logan Intl

11h 22m

1 stop

SEA2:32 pmSeattle/Tacoma Intl

$297

American Airlines

Sep 19

SEA5:49 amSeattle/Tacoma Intl

9h 41m

1 stop

BOS6:30 pmBoston Logan Intl

Sep 28

BOS7:21 pmBoston Logan Intl

8h 52m

1 stop

SEA1:13 amSeattle/Tacoma Intl

$307

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 6/1

11:35 am-8:14 pm

Nonstop5h 39m

Boston Logan Intl

Tue 6/9

7:00 am-10:15 am

Nonstop6h 15m

$291

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 6/6

5:15 am-6:05 pm

1 stop9h 50m

Boston Logan Intl

Tue 6/9

5:05 pm-10:58 pm

1 stop8h 53m

$296

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 8/18

5:10 am-4:46 pm

1 stop8h 36m

Boston Logan Intl

Tue 8/25

3:52 pm-11:50 pm

1 stop10h 58m

$297

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 6/6

7:25 pm-6:20 am

1 stop7h 55m

Boston Logan Intl

Tue 6/9

7:00 am-10:15 am

Nonstop6h 15m

$301

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 9/15

11:55 pm-8:19 am

Nonstop5h 24m

Boston Logan Intl

Tue 9/22

6:59 pm-10:38 pm

Nonstop6h 39m

$302

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 10/6

11:55 pm-8:19 am

Nonstop5h 24m

Boston Logan Intl

Tue 10/13

6:59 pm-10:38 pm

Nonstop6h 39m

$307

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 5/29

11:30 am-11:09 pm

1 stop8h 39m

Portland

Mon 6/1

2:38 pm-10:45 pm

1 stop11h 07m

$350

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 10/17

11:04 pm-10:04 am

1 stop8h 00m

Portland

Sat 10/24

10:45 am-6:21 pm

1 stop10h 36m

$381

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 8/20

11:05 pm-12:10 pm

1 stop10h 05m

Manchester

Fri 8/28

6:25 pm-11:30 pm

1 stop8h 05m

$439

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 8/20

11:05 pm-12:10 pm

1 stop10h 05m

Manchester

Fri 8/28

10:20 am-5:35 pm

2 stops10h 15m

$444

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 $197.

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 $374. 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 $498.

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 at noon. momondo users have found flights departing from Seattle to New Hampshire at noon for as low as $240. 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 $460. 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 from Seattle 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 $402 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 $351 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

Fastest flight time	5h 16m
Direct flights	Every day
Airports in New Hampshire	52 airports

The fastest flight from Seattle to New Hampshire takes 5h 16m

Direct flights go from Seattle to New Hampshire every day.

There are 52 airports in New Hampshire. From Seattle there are direct flights to Boston Logan Intl (BOS).

Search flight deals

Frequently asked questions about flying from Seattle to New Hampshire

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 8 operators available for flights from Seattle/Tacoma Intl Airport to New Hampshire as of May 2026.
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 $286	Free Cancellation	Rating 7.1 11,645 reviews		Search American Airlines flights
Southwest	PriceFrom $377	Free Cancellation	Rating 7.9 4,284 reviews		Search Southwest 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.