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Cheap flights from New York LaGuardia Airport to Seattle from C$ 265

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 21/8. 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
1 adult, Economy, 0 bags

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
1:25 p.m. - 7:07 p.m.
LGA
-
SEA
8h 42m
1 stop
United Airlines Logo
11:00 p.m. - 10:17 a.m.
SEA
-
LGA
8h 17m
1 stop
C$ 487United Airlines
Thu, 27 Aug - Sun, 30 Aug
American Airlines Logo
5:25 p.m. - 11:59 p.m.
LGA
-
SEA
9h 34m
1 stop
American Airlines Logo
11:56 p.m. - 10:10 a.m.
SEA
-
LGA
7h 14m
1 stop
C$ 490American Airlines
Fri, 28 Aug - Fri, 4 Sep
United Airlines Logo
6:10 a.m. - 11:32 a.m.
LGA
-
SEA
8h 22m
1 stop
United Airlines Logo
10:56 p.m. - 9:09 a.m.
SEA
-
LGA
7h 13m
1 stop
C$ 494United Airlines
Sun, 30 Aug - Sun, 8 Nov
Southwest Logo
2:00 p.m. - 8:55 p.m.
LGA
-
SEA
9h 55m
1 stop
Southwest Logo
7:35 a.m. - 6:15 p.m.
SEA
-
LGA
7h 40m
1 stop
C$ 501Southwest
Sat, 12 Sep - Sat, 19 Sep
Southwest Logo
9:45 a.m. - 6:10 p.m.
LGA
-
SEA
11h 25m
2 stops
Southwest Logo
5:20 a.m. - 3:30 p.m.
SEA
-
LGA
7h 10m
1 stop
C$ 508Southwest
Wed, 16 Sep - Wed, 23 Sep
Southwest Logo
9:45 a.m. - 6:10 p.m.
LGA
-
SEA
11h 25m
2 stops
Southwest Logo
7:10 a.m. - 8:25 p.m.
SEA
-
LGA
10h 15m
2 stops
C$ 515Southwest
Wed, 16 Sep - Wed, 23 Sep
Southwest Logo
8:30 a.m. - 5:05 p.m.
LGA
-
SEA
11h 35m
2 stops
Southwest Logo
12:15 a.m. - 3:10 p.m.
SEA
-
LGA
11h 55m
1 stop
C$ 517Southwest
Tue, 12 Jan - Fri, 15 Jan
United Airlines Logo
5:27 p.m. - 10:56 p.m.
LGA
-
SEA
8h 29m
1 stop
United Airlines Logo
12:43 p.m. - 11:29 p.m.
SEA
-
LGA
7h 46m
1 stop
C$ 521United Airlines
Fri, 16 Oct - Tue, 20 Oct
United Airlines Logo
4:25 p.m. - 10:43 p.m.
LGA
-
SEA
9h 18m
1 stop
United Airlines Logo
11:13 p.m. - 10:17 a.m.
SEA
-
LGA
8h 04m
1 stop
C$ 522United Airlines
Tue, 18 Aug - Sun, 4 Oct
Southwest Logo
7:00 a.m. - 6:40 p.m.
LGA
-
SEA
14h 40m
2 stops
Southwest Logo
6:30 a.m. - 8:00 p.m.
SEA
-
LGA
10h 30m
1 stop
C$ 524Southwest
Wed, 9 Dec - Wed, 16 Dec

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Southwest flights from New York LaGuardia Airport to Seattle

Our best Southwest deals on New York LaGuardia Airport to Seattle flight tickets
Southwest
12 Sep
LGA2:00 p.m.New York LaGuardia
9h 55m
1 stop
SEA8:55 p.m.Seattle/Tacoma Intl
19 Sep
SEA7:35 a.m.Seattle/Tacoma Intl
7h 40m
1 stop
LGA6:15 p.m.New York LaGuardia
C$ 501
Southwest
16 Sep
LGA9:45 a.m.New York LaGuardia
11h 25m
2 stops
SEA6:10 p.m.Seattle/Tacoma Intl
23 Sep
SEA5:20 a.m.Seattle/Tacoma Intl
7h 10m
1 stop
LGA3:30 p.m.New York LaGuardia
C$ 508
Southwest
16 Sep
LGA9:45 a.m.New York LaGuardia
11h 25m
2 stops
SEA6:10 p.m.Seattle/Tacoma Intl
23 Sep
SEA7:10 a.m.Seattle/Tacoma Intl
10h 15m
2 stops
LGA8:25 p.m.New York LaGuardia
C$ 515

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
27 Aug
LGA1:25 p.m.New York LaGuardia
8h 42m
1 stop
SEA7:07 p.m.Seattle/Tacoma Intl
30 Aug
SEA11:00 p.m.Seattle/Tacoma Intl
8h 17m
1 stop
LGA10:17 a.m.New York LaGuardia
C$ 487
United Airlines
30 Aug
LGA6:10 a.m.New York LaGuardia
8h 22m
1 stop
SEA11:32 a.m.Seattle/Tacoma Intl
8 Nov
SEA10:56 p.m.Seattle/Tacoma Intl
7h 13m
1 stop
LGA9:09 a.m.New York LaGuardia
C$ 494
United Airlines
16 Oct
LGA5:27 p.m.New York LaGuardia
8h 29m
1 stop
SEA10:56 p.m.Seattle/Tacoma Intl
20 Oct
SEA12:43 p.m.Seattle/Tacoma Intl
7h 46m
1 stop
LGA11:29 p.m.New York LaGuardia
C$ 521

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 4 August 2026.
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

Cheapest round-trip

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 27/8

1:25 p.m.-7:07 p.m.

1 stop8h 42m

Seattle/Tacoma Intl

Sun 30/8

11:00 p.m.-10:17 a.m.

1 stop8h 17m

C$ 487

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 28/8

5:25 p.m.-11:59 p.m.

1 stop9h 34m

Seattle/Tacoma Intl

Fri 4/9

11:56 p.m.-10:10 a.m.

1 stop7h 14m

C$ 490
Quickest round-trip

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sun 30/8

6:10 a.m.-11:32 a.m.

1 stop8h 22m

Seattle/Tacoma Intl

Sun 8/11

10:56 p.m.-9:09 a.m.

1 stop7h 13m

C$ 494

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 12/9

2:00 p.m.-8:55 p.m.

1 stop9h 55m

Seattle/Tacoma Intl

Sat 19/9

7:35 a.m.-6:15 p.m.

1 stop7h 40m

C$ 501

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 16/9

9:45 a.m.-6:10 p.m.

2 stops11h 25m

Seattle/Tacoma Intl

Wed 23/9

5:20 a.m.-3:30 p.m.

1 stop7h 10m

C$ 508

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 16/9

9:45 a.m.-6:10 p.m.

2 stops11h 25m

Seattle/Tacoma Intl

Wed 23/9

7:10 a.m.-8:25 p.m.

2 stops10h 15m

C$ 515

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 12/1

8:30 a.m.-5:05 p.m.

2 stops11h 35m

Seattle/Tacoma Intl

Fri 15/1

12:15 a.m.-3:10 p.m.

1 stop11h 55m

C$ 517

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 16/10

5:27 p.m.-10:56 p.m.

1 stop8h 29m

Seattle/Tacoma Intl

Tue 20/10

12:43 p.m.-11:29 p.m.

1 stop7h 46m

C$ 521

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 18/8

4:25 p.m.-10:43 p.m.

1 stop9h 18m

Seattle/Tacoma Intl

Sun 4/10

11:13 p.m.-10:17 a.m.

1 stop8h 04m

C$ 522

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 9/12

7:00 a.m.-6:40 p.m.

2 stops14h 40m

Seattle/Tacoma Intl

Wed 16/12

6:30 a.m.-8:00 p.m.

1 stop10h 30m

C$ 524

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 typical price of a round-trip flight between New York LaGuardia Airport and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from C$ 446 to C$ 828.
The lowest price recently found on this route was C$ 487.

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$ 394.

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

Our data shows that Wednesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 292. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around C$ 1,118. 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 morning. Flights from New York LaGuardia Airport to Seattle during this time can be as low as C$ 584. Flights in the afternoon are often more expensive with an average ticket price of C$ 740.

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

As of August 2026, prices for New York LaGuardia Airport to Seattle flights are approximately 40% 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

7h 49m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Seattle takes 7h 49m
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

Frequently asked questions about flying from New York LaGuardia Airport to Seattle

  • 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 7h 49m.

  • 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.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
SeaTac
Tacoma
Kirkland
Leavenworth
Redmond
Marysville
Woodinville
Puyallup
Tukwila
Olympia
Ellensburg
Federal Way
Bainbridge Island
Gig Harbor
Kent
Edmonds
Shoreline
Chehalis
Ocean Shores

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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