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

American Airlines, Southwest, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl 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 2 operators available for flights from Seattle/Tacoma Intl Airport to New Hampshire as of October 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.

$214 Cheap Flights from Seattle to New Hampshire in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to New Hampshire

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:20 am - 9:20 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 00m1 stop Chicago Midway

5:50 pm - 11:35 pmMHT Manchester-SEA Seattle/Tacoma Intl

8h 45m1 stop Chicago Midway

$331Southwest

Thu, Dec 10 - Wed, Dec 16

6:30 am - 5:00 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 30m1 stop Chicago Midway

5:50 pm - 11:35 pmMHT Manchester-SEA Seattle/Tacoma Intl

8h 45m1 stop Chicago Midway

$331Southwest

Wed, Dec 9 - Wed, Dec 16

6:30 am - 5:00 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 30m1 stop Chicago Midway

2:10 pm - 11:35 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 25m2 stops Baltimore/Washington Chicago Midway

$336Southwest

Wed, Dec 9 - Wed, Dec 16

6:30 am - 5:00 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 30m1 stop Chicago Midway

2:10 pm - 10:50 pmMHT Manchester-SEA Seattle/Tacoma Intl

11h 40m2 stops Baltimore/Washington Denver Intl

$336Southwest

Wed, Dec 9 - Wed, Dec 16

12:45 pm - 10:59 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 14m1 stop Philadelphia

5:25 am - 2:25 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 00m2 stops Washington, D.C. Reagan-National Chicago O'Hare Intl

$409American Airlines

Mon, Nov 23 - Fri, Nov 27

12:45 pm - 10:59 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 14m1 stop Philadelphia

5:41 am - 12:07 pmMHT Manchester-SEA Seattle/Tacoma Intl

9h 26m1 stop Charlotte Douglas

$456American Airlines

Tue, Nov 24 - Thu, Nov 26

12:45 pm - 10:59 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 14m1 stop Philadelphia

6:00 am - 3:59 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 59m2 stops Philadelphia Chicago O'Hare Intl

$468American Airlines

Tue, Nov 24 - Thu, Nov 26

8:00 am - 6:59 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 59m1 stop Washington, D.C. Dulles Intl

1:30 pm - 12:33 amMHT Manchester-SEA Seattle/Tacoma Intl

14h 03m2 stops Washington, D.C. Dulles Intl San Francisco

$622United Airlines

Sat, Apr 10 - Wed, Apr 14

8:00 am - 6:59 pmSEA Seattle/Tacoma Intl-MHT Manchester

7h 59m1 stop Washington, D.C. Dulles Intl

1:30 pm - 11:21 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 51m2 stops Washington, D.C. Dulles Intl San Francisco

$622United Airlines

Tue, Apr 13 - Wed, Apr 14

11:50 pm - 3:03 pmSEA Seattle/Tacoma Intl-MHT Manchester

12h 13m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

1:30 pm - 8:10 pmMHT Manchester-SEA Seattle/Tacoma Intl

9h 40m1 stop Washington, D.C. Dulles Intl

$622United Airlines

Mon, Apr 12 - Wed, Apr 14

Cheap last minute flights

Enter your travel dates to find the best prices.

11:16 am - 10:54 pmSEA Seattle/Tacoma Intl-MHT Manchester

8h 38m1 stop Charlotte Douglas

11:10 am - 9:20 pmMHT Manchester-SEA Seattle/Tacoma Intl

13h 10m2 stops Philadelphia Los Angeles

$902American Airlines

Thu, Nov 5 - Wed, Nov 18

9:15 am - 10:49 pmSEA Seattle/Tacoma Intl-MHT Manchester

10h 34m1 stop Philadelphia

6:00 am - 2:20 pmMHT Manchester-SEA Seattle/Tacoma Intl

11h 20m2 stops Washington, D.C. Reagan-National Chicago O'Hare Intl

$902American Airlines

Thu, Nov 5 - Tue, Nov 17

11:16 am - 10:54 pmSEA Seattle/Tacoma Intl-MHT Manchester

8h 38m1 stop Charlotte Douglas

10:43 am - 8:19 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 36m2 stops Washington, D.C. Reagan-National Chicago O'Hare Intl

$902American Airlines

Thu, Nov 5 - Sat, Nov 14

7:00 am - 11:59 pmSEA Seattle/Tacoma Intl-MHT Manchester

13h 59m2 stops San Francisco Washington, D.C. Dulles Intl

9:25 am - 8:47 pmMHT Manchester-SEA Seattle/Tacoma Intl

14h 22m2 stops Washington, D.C. Dulles Intl San Francisco

$907United Airlines

Thu, Nov 5 - Sat, Nov 14

10:43 am - 11:53 pmSEA Seattle/Tacoma Intl-MHT Manchester

10h 10m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

6:00 am - 3:44 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 44m2 stops Washington, D.C. Reagan-National Chicago O'Hare Intl

$907American Airlines

Thu, Nov 5 - Tue, Nov 17

9:28 pm - 10:25 amSEA Seattle/Tacoma Intl-MHT Manchester

9h 57m1 stop Philadelphia

1:15 pm - 8:13 pmMHT Manchester-SEA Seattle/Tacoma Intl

9h 58m1 stop Washington, D.C. Reagan-National

$962Alaska Airlines

Thu, Nov 5 - Tue, Nov 17

9:28 pm - 10:23 amSEA Seattle/Tacoma Intl-MHT Manchester

9h 55m1 stop Philadelphia

11:10 am - 8:59 pmMHT Manchester-SEA Seattle/Tacoma Intl

12h 49m1 stop Philadelphia

$1,102Alaska Airlines

Tue, Nov 3 - Thu, Nov 5

11:20 am - 9:15 pmSEA Seattle/Tacoma Intl-MHT Manchester

6h 55m1 stop Chicago Midway

12:55 pm - 11:05 pmMHT Manchester-SEA Seattle/Tacoma Intl

13h 10m2 stops Baltimore/Washington Denver Intl

$1,107Southwest

Tue, Nov 3 - Thu, Nov 5

5:30 am - 4:40 pmSEA Seattle/Tacoma Intl-MHT Manchester

8h 10m1 stop Chicago Midway

12:45 pm - 10:50 pmMHT Manchester-SEA Seattle/Tacoma Intl

13h 05m2 stops Baltimore/Washington Denver Intl

$1,107Southwest

Sun, Nov 1 - Wed, Nov 4

11:10 am - 11:50 pmSEA Seattle/Tacoma Intl-MHT Manchester

9h 40m2 stops Sacramento Intl Baltimore/Washington

8:15 am - 6:40 pmMHT Manchester-SEA Seattle/Tacoma Intl

13h 25m2 stops Baltimore/Washington Sacramento Intl

$1,112Southwest

Sun, Nov 1 - Wed, Nov 4

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Alaska Airlines flights from Seattle to New Hampshire

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

Alaska Airlines

Dec 3

SEA9:35 pmSeattle/Tacoma Intl

9h 51m

1 stop

MHT10:26 amManchester

Dec 9

MHT12:07 pmManchester

11h 15m

1 stop

SEA8:22 pmSeattle/Tacoma Intl

$677

Alaska Airlines

Nov 10

SEA9:28 pmSeattle/Tacoma Intl

9h 55m

1 stop

MHT10:23 amManchester

Nov 11

MHT1:15 pmManchester

9h 58m

1 stop

SEA8:13 pmSeattle/Tacoma Intl

$751

Alaska Airlines

Nov 10

SEA9:28 pmSeattle/Tacoma Intl

9h 55m

1 stop

MHT10:23 amManchester

Nov 11

MHT1:15 pmManchester

12h 45m

2 stops

SEA11:00 pmSeattle/Tacoma Intl

$757

Southwest flights from Seattle to New Hampshire

Our best Southwest deals on Seattle to New Hampshire flight tickets

Southwest

Dec 9

SEA6:30 amSeattle/Tacoma Intl

7h 30m

1 stop

MHT5:00 pmManchester

Dec 16

MHT5:50 pmManchester

8h 45m

1 stop

SEA11:35 pmSeattle/Tacoma Intl

$331

Southwest

Dec 9

SEA6:30 amSeattle/Tacoma Intl

7h 30m

1 stop

MHT5:00 pmManchester

Dec 16

MHT2:10 pmManchester

12h 25m

2 stops

SEA11:35 pmSeattle/Tacoma Intl

$336

Southwest

Dec 9

SEA6:10 amSeattle/Tacoma Intl

13h 00m

2 stops

MHT10:10 pmManchester

Dec 16

MHT2:10 pmManchester

12h 25m

2 stops

SEA11:35 pmSeattle/Tacoma Intl

$361

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Thu 12/10

11:20 am-9:20 pm

1 stop7h 00m

Manchester

Wed 12/16

5:50 pm-11:35 pm

1 stop8h 45m

$331

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Wed 12/9

6:30 am-5:00 pm

1 stop7h 30m

Manchester

Wed 12/16

5:50 pm-11:35 pm

1 stop8h 45m

$331

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Wed 12/9

6:30 am-5:00 pm

1 stop7h 30m

Manchester

Wed 12/16

2:10 pm-11:35 pm

2 stops12h 25m

$336

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Wed 12/9

6:30 am-5:00 pm

1 stop7h 30m

Manchester

Wed 12/16

2:10 pm-10:50 pm

2 stops11h 40m

$336

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Mon 11/23

12:45 pm-10:59 pm

1 stop7h 14m

Manchester

Fri 11/27

5:25 am-2:25 pm

2 stops12h 00m

$409

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Tue 11/24

12:45 pm-10:59 pm

1 stop7h 14m

Manchester

Thu 11/26

5:41 am-12:07 pm

1 stop9h 26m

$456

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Tue 11/24

12:45 pm-10:59 pm

1 stop7h 14m

Manchester

Thu 11/26

6:00 am-3:59 pm

2 stops12h 59m

$468

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Sat 4/10

8:00 am-6:59 pm

1 stop7h 59m

Manchester

Wed 4/14

1:30 pm-12:33 am

2 stops14h 03m

$622

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Tue 4/13

8:00 am-6:59 pm

1 stop7h 59m

Manchester

Wed 4/14

1:30 pm-11:21 pm

2 stops12h 51m

$622

SeattleManchester

SEA Seattle/Tacoma Intl - MHT Manchester

SEAMHT

Seattle/Tacoma Intl

Mon 4/12

11:50 pm-3:03 pm

2 stops12h 13m

Manchester

Wed 4/14

1:30 pm-8:10 pm

1 stop9h 40m

$622

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

What is the cheapest month to fly to New Hampshire?

The month of April is another great option to travel to New Hampshire, with average flight prices from Seattle averaging around $378.

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 Tuesday when prices can be found for as low as $442. 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 Monday, with ticket prices averaging around $553.

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 evening. momondo users have found flights departing from Seattle to New Hampshire in the evening for as low as $441. 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 at noon because they tend to be around $541. 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 $446 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 $384 on momondo.

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

You could potentially save up to 34% on your flight if you consider stops on a Seattle to New Hampshire flight.

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	$214
Fastest flight time	5h 09m
Direct flights	None

The best one-way flight to New Hampshire from Seattle in the past 72 hours is $214. The best round-trip flight deal from Seattle to New Hampshire found on momondo in the last 72 hours is $331.

The fastest flight from Seattle to New Hampshire takes 5h 09m

There are no direct flights from Seattle to New Hampshire. There are no popular flight routes from Seattle to New Hampshire.

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 2 operators available for flights from Seattle/Tacoma Intl Airport to New Hampshire as of October 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
Southwest	PriceFrom $362	Free Cancellation	Rating 7.9 4,217 reviews		Search Southwest flights
American Airlines	PriceFrom $368	Free Cancellation	Rating 7.0 12,208 reviews		Search American 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.