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Cheap flights from New York LaGuardia Airport to Seattle from C$ 187

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 York LaGuardia Airport to Seattle departing on 6/1. 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

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Find the cheapest flights from New York LaGuardia Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:15 a.m. - 6:14 p.m.
LGA
-
SEA
9h 59m1 stop
United Airlines Logo
10:58 a.m. - 9:14 p.m.
SEA
-
LGA
7h 16m1 stop
C$ 373United Airlines
Tue, 13 Jan - Tue, 20 Jan
United Airlines Logo
3:29 p.m. - 9:15 p.m.
LGA
-
SEA
8h 46m1 stop
United Airlines Logo
10:58 a.m. - 9:59 p.m.
SEA
-
LGA
8h 01m1 stop
C$ 377United Airlines
Tue, 13 Jan - Sat, 17 Jan
United Airlines Logo
10:28 a.m. - 6:26 p.m.
LGA
-
SEA
10h 58m2 stops
United Airlines Logo
8:10 a.m. - 6:44 p.m.
SEA
-
LGA
7h 34m1 stop
C$ 380United Airlines
Tue, 13 Jan - Tue, 20 Jan
Delta Logo
4:59 p.m. - 9:49 p.m.
LGA
-
SEA
7h 50m1 stop
Delta Logo
12:00 p.m. - 11:39 p.m.
SEA
-
LGA
8h 39m1 stop
C$ 381Delta
Wed, 14 Jan - Wed, 28 Jan
Southwest Logo
11:55 a.m. - 11:05 p.m.
LGA
-
SEA
14h 10m2 stops
Southwest Logo
10:20 a.m. - 10:45 p.m.
SEA
-
LGA
9h 25m1 stop
C$ 384Southwest
Tue, 13 Jan - Sat, 17 Jan
Southwest Logo
11:25 a.m. - 5:50 p.m.
LGA
-
SEA
9h 25m1 stop
Southwest Logo
8:45 a.m. - 10:40 p.m.
SEA
-
LGA
10h 55m2 stops
C$ 388Southwest
Wed, 14 Jan - Wed, 21 Jan
Southwest Logo
6:00 a.m. - 4:50 p.m.
LGA
-
SEA
13h 50m1 stop
Southwest Logo
6:05 a.m. - 9:00 p.m.
SEA
-
LGA
11h 55m2 stops
C$ 392Southwest
Sat, 10 Jan - Wed, 14 Jan
United Airlines Logo
10:34 a.m. - 6:14 p.m.
LGA
-
SEA
10h 40m2 stops
United Airlines Logo
5:00 a.m. - 5:13 p.m.
SEA
-
LGA
9h 13m2 stops
C$ 395United Airlines
Sat, 10 Jan - Sat, 17 Jan
Southwest Logo
6:00 a.m. - 1:15 p.m.
LGA
-
SEA
10h 15m1 stop
Southwest Logo
6:05 a.m. - 5:50 p.m.
SEA
-
LGA
8h 45m1 stop
C$ 405Southwest
Thu, 8 Jan - Wed, 14 Jan
Southwest Logo
2:00 p.m. - 10:30 p.m.
LGA
-
SEA
11h 30m1 stop
Southwest Logo
6:45 a.m. - 5:30 p.m.
SEA
-
LGA
7h 45m1 stop
C$ 409Southwest
Thu, 8 Jan - Wed, 14 Jan

Southwest flights from New York LaGuardia Airport to Seattle

Our best Southwest deals on New York LaGuardia Airport to Seattle flight tickets
Southwest
13 Jan
LGA11:55 a.m.New York LaGuardia
14h 10m
2 stops
SEA11:05 p.m.Seattle/Tacoma Intl
17 Jan
SEA10:20 a.m.Seattle/Tacoma Intl
9h 25m
1 stop
LGA10:45 p.m.New York LaGuardia
C$ 384
Find similar
Southwest
14 Jan
LGA11:25 a.m.New York LaGuardia
9h 25m
1 stop
SEA5:50 p.m.Seattle/Tacoma Intl
21 Jan
SEA8:45 a.m.Seattle/Tacoma Intl
10h 55m
2 stops
LGA10:40 p.m.New York LaGuardia
C$ 388
Find similar
Southwest
10 Jan
LGA6:00 a.m.New York LaGuardia
13h 50m
1 stop
SEA4:50 p.m.Seattle/Tacoma Intl
14 Jan
SEA6:05 a.m.Seattle/Tacoma Intl
11h 55m
2 stops
LGA9:00 p.m.New York LaGuardia
C$ 392
Find similar

United Airlines flights from New York LaGuardia Airport to Seattle

Our best United Airlines deals on New York LaGuardia Airport to Seattle flight tickets
United Airlines
13 Jan
LGA6:15 a.m.New York LaGuardia
8h 17m
1 stop
SEA11:32 a.m.Seattle/Tacoma Intl
20 Jan
SEA10:58 a.m.Seattle/Tacoma Intl
7h 16m
1 stop
LGA9:14 p.m.New York LaGuardia
C$ 373
Find similar
United Airlines
13 Jan
LGA3:29 p.m.New York LaGuardia
8h 46m
1 stop
SEA9:15 p.m.Seattle/Tacoma Intl
17 Jan
SEA10:58 a.m.Seattle/Tacoma Intl
8h 01m
1 stop
LGA9:59 p.m.New York LaGuardia
C$ 377
Find similar
United Airlines
13 Jan
LGA10:10 a.m.New York LaGuardia
8h 51m
1 stop
SEA4:01 p.m.Seattle/Tacoma Intl
20 Jan
SEA10:58 a.m.Seattle/Tacoma Intl
9h 45m
2 stops
LGA11:43 p.m.New York LaGuardia
C$ 380
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia Airport 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 96,600 searches. Data last updated 17 December 2025.
Use the filters below to find and compare flights from New York LaGuardia Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 13/1

11:15 a.m.-6:14 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Tue 20/1

10:58 a.m.-9:14 p.m.

1 stop7h 16m

C$ 373

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 13/1

3:29 p.m.-9:15 p.m.

1 stop8h 46m

Seattle/Tacoma Intl

Sat 17/1

10:58 a.m.-9:59 p.m.

1 stop8h 01m

C$ 377

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 13/1

10:28 a.m.-6:26 p.m.

2 stops10h 58m

Seattle/Tacoma Intl

Tue 20/1

8:10 a.m.-6:44 p.m.

1 stop7h 34m

C$ 380

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 14/1

4:59 p.m.-9:49 p.m.

1 stop7h 50m

Seattle/Tacoma Intl

Wed 28/1

12:00 p.m.-11:39 p.m.

1 stop8h 39m

C$ 381

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 13/1

11:55 a.m.-11:05 p.m.

2 stops14h 10m

Seattle/Tacoma Intl

Sat 17/1

10:20 a.m.-10:45 p.m.

1 stop9h 25m

C$ 384

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 14/1

11:25 a.m.-5:50 p.m.

1 stop9h 25m

Seattle/Tacoma Intl

Wed 21/1

8:45 a.m.-10:40 p.m.

2 stops10h 55m

C$ 388

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 10/1

6:00 a.m.-4:50 p.m.

1 stop13h 50m

Seattle/Tacoma Intl

Wed 14/1

6:05 a.m.-9:00 p.m.

2 stops11h 55m

C$ 392

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 10/1

10:34 a.m.-6:14 p.m.

2 stops10h 40m

Seattle/Tacoma Intl

Sat 17/1

5:00 a.m.-5:13 p.m.

2 stops9h 13m

C$ 395

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 8/1

6:00 a.m.-1:15 p.m.

1 stop10h 15m

Seattle/Tacoma Intl

Wed 14/1

6:05 a.m.-5:50 p.m.

1 stop8h 45m

C$ 405

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 8/1

2:00 p.m.-10:30 p.m.

1 stop11h 30m

Seattle/Tacoma Intl

Wed 14/1

6:45 a.m.-5:30 p.m.

1 stop7h 45m

C$ 409

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 York LaGuardia Airport 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?

If you aren’t able to travel to Seattle during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of C$ 387.

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

Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 496. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 870. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

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

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from New York LaGuardia Airport to Seattle during this time can be as low as C$ 579. Flights in the morning are often more expensive with an average ticket price of C$ 747.

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

You are more likely to see cheaper flights to Seattle from New York LaGuardia Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 577 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from New York LaGuardia Airport for as low as C$ 383 on momondo.

How have New York LaGuardia Airport to Seattle flight prices changed over time?

As of December 2025, prices for New York LaGuardia Airport to Seattle flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from New York LaGuardia Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from New York LaGuardia Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap New York LaGuardia Airport to Seattle (LGA to SEA) flight deals and tips

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

Fastest flight time

9h 59m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Seattle takes 9h 59m
There are no direct flights from New York LaGuardia Airport to Seattle. There are no popular flight routes from New York LaGuardia Airport to Seattle.
Search flight deals

  • How far is New York LaGuardia to Seattle/Tacoma Intl by plane?

    The straight-line distance from New York LaGuardia to Seattle/Tacoma Intl is 3869.9 km. A reasonable flight in good conditions will take 9h 59m.

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

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

  • How old do you have to be to fly from New York LaGuardia Airport 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 York LaGuardia Airport to Seattle/Tacoma Intl Airport.

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

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from New York LaGuardia Airport to Seattle?

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Lynnwood
Marysville
Tacoma
SeaTac
Kirkland
Tukwila
Olympia
Ocean Shores
Redmond
Bainbridge Island
Ellensburg
Gig Harbor
Renton
Mukilteo
Cle Elum
Centralia
Puyallup
Federal Way
Kent

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from New York to Seattle for you.

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

Yes. momondo allows you to filter the results for New York to Seattle flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Seattle from New York. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Seattle from New York 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.

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