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Cheap flights from New York LaGuardia Airport to Seattle from C$ 137

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 22/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from New York LaGuardia Airport to Seattle

Cheap round-trip flights

Southwest Logo
5:55 p.m. - 12:35 a.m.LGA-SEA
9h 40m1 stop
Southwest Logo
5:40 a.m. - 5:55 p.m.SEA-LGA
9h 15m1 stop
C$ 273Southwest
Find Deal
Fri, 14 Nov - Mon, 17 Nov
Southwest Logo
2:10 p.m. - 10:50 p.m.LGA-SEA
11h 40m2 stops
Southwest Logo
5:45 a.m. - 4:00 p.m.SEA-LGA
7h 15m1 stop
C$ 280Southwest
Find Deal
Wed, 1 Oct - Sat, 4 Oct
Southwest Logo
6:00 a.m. - 4:50 p.m.LGA-SEA
13h 50m1 stop
Southwest Logo
5:40 a.m. - 8:05 p.m.SEA-LGA
11h 25m2 stops
C$ 288Southwest
Find Deal
Sat, 15 Nov - Wed, 19 Nov
Southwest Logo
11:20 a.m. - 11:00 p.m.LGA-SEA
14h 40m2 stops
Southwest Logo
8:35 a.m. - 9:55 p.m.SEA-LGA
10h 20m2 stops
C$ 295Southwest
Find Deal
Wed, 22 Oct - Tue, 28 Oct
Delta Logo
5:00 p.m. - 11:54 p.m.LGA-SEA
9h 54m1 stop
Delta Logo
11:55 p.m. - 12:36 p.m.SEA-LGA
9h 41m1 stop
C$ 328Delta
Find Deal
Fri, 31 Oct - Fri, 14 Nov
United Airlines Logo
8:25 a.m. - 3:32 p.m.LGA-SEA
10h 07m2 stops
United Airlines Logo
7:00 a.m. - 5:17 p.m.SEA-LGA
7h 17m1 stop
C$ 335United Airlines
Find Deal
Sat, 4 Oct - Tue, 7 Oct
Delta Logo
12:51 p.m. - 5:54 p.m.LGA-SEA
8h 03m1 stop
Delta Logo
11:55 p.m. - 10:54 a.m.SEA-LGA
7h 59m1 stop
C$ 356Delta
Find Deal
Wed, 1 Oct - Mon, 6 Oct
Delta Logo
7:55 a.m. - 12:24 p.m.LGA-SEA
7h 29m1 stop
Delta Logo
11:55 p.m. - 10:54 a.m.SEA-LGA
7h 59m1 stop
C$ 370Delta
Find Deal
Sat, 4 Oct - Mon, 6 Oct
United Airlines Logo
2:56 p.m. - 8:44 p.m.LGA-SEA
8h 48m1 stop
United Airlines Logo
11:59 p.m. - 12:10 p.m.SEA-LGA
9h 11m1 stop
C$ 372United Airlines
Find Deal
Thu, 23 Oct - Sun, 26 Oct
United Airlines Logo
6:15 a.m. - 11:32 a.m.LGA-SEA
8h 17m1 stop
United Airlines Logo
8:40 a.m. - 9:14 p.m.SEA-LGA
9h 34m2 stops
C$ 376United Airlines
Find Deal
Thu, 15 Jan - Wed, 21 Jan

Southwest flights from New York LaGuardia Airport to Seattle

Our best Southwest deals on New York LaGuardia Airport to Seattle flight tickets
Southwest
14 Nov
LGA5:55 p.m.New York LaGuardia
9h 40m
1 stop
SEA12:35 a.m.Seattle/Tacoma Intl
17 Nov
SEA5:40 a.m.Seattle/Tacoma Intl
9h 15m
1 stop
LGA5:55 p.m.New York LaGuardia
C$ 273
Find similar
Southwest
1 Oct
LGA2:10 p.m.New York LaGuardia
11h 40m
2 stops
SEA10:50 p.m.Seattle/Tacoma Intl
4 Oct
SEA5:45 a.m.Seattle/Tacoma Intl
7h 15m
1 stop
LGA4:00 p.m.New York LaGuardia
C$ 280
Find similar
Southwest
15 Nov
LGA6:00 a.m.New York LaGuardia
13h 50m
1 stop
SEA4:50 p.m.Seattle/Tacoma Intl
19 Nov
SEA5:40 a.m.Seattle/Tacoma Intl
11h 25m
2 stops
LGA8:05 p.m.New York LaGuardia
C$ 288
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
4 Oct
LGA8:25 a.m.New York LaGuardia
10h 07m
2 stops
SEA3:32 p.m.Seattle/Tacoma Intl
7 Oct
SEA7:00 a.m.Seattle/Tacoma Intl
7h 17m
1 stop
LGA5:17 p.m.New York LaGuardia
C$ 335
Find similar
United Airlines
23 Oct
LGA2:56 p.m.New York LaGuardia
8h 48m
1 stop
SEA8:44 p.m.Seattle/Tacoma Intl
26 Oct
SEA11:59 p.m.Seattle/Tacoma Intl
9h 11m
1 stop
LGA12:10 p.m.New York LaGuardia
C$ 372
Find similar
United Airlines
15 Jan
LGA6:15 a.m.New York LaGuardia
8h 17m
1 stop
SEA11:32 a.m.Seattle/Tacoma Intl
21 Jan
SEA8:40 a.m.Seattle/Tacoma Intl
9h 34m
2 stops
LGA9:14 p.m.New York LaGuardia
C$ 376
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 15 September 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

Fri 14/11

5:55 p.m.-12:35 a.m.

1 stop9h 40m

Seattle/Tacoma Intl

Mon 17/11

5:40 a.m.-5:55 p.m.

1 stop9h 15m

C$ 273

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 1/10

2:10 p.m.-10:50 p.m.

2 stops11h 40m

Seattle/Tacoma Intl

Sat 4/10

5:45 a.m.-4:00 p.m.

1 stop7h 15m

C$ 280

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 15/11

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

1 stop13h 50m

Seattle/Tacoma Intl

Wed 19/11

5:40 a.m.-8:05 p.m.

2 stops11h 25m

C$ 288

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 22/10

11:20 a.m.-11:00 p.m.

2 stops14h 40m

Seattle/Tacoma Intl

Tue 28/10

8:35 a.m.-9:55 p.m.

2 stops10h 20m

C$ 295

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 31/10

5:00 p.m.-11:54 p.m.

1 stop9h 54m

Seattle/Tacoma Intl

Fri 14/11

11:55 p.m.-12:36 p.m.

1 stop9h 41m

C$ 328

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 4/10

8:25 a.m.-3:32 p.m.

2 stops10h 07m

Seattle/Tacoma Intl

Tue 7/10

7:00 a.m.-5:17 p.m.

1 stop7h 17m

C$ 335

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 1/10

12:51 p.m.-5:54 p.m.

1 stop8h 03m

Seattle/Tacoma Intl

Mon 6/10

11:55 p.m.-10:54 a.m.

1 stop7h 59m

C$ 356

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 4/10

7:55 a.m.-12:24 p.m.

1 stop7h 29m

Seattle/Tacoma Intl

Mon 6/10

11:55 p.m.-10:54 a.m.

1 stop7h 59m

C$ 370

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 23/10

2:56 p.m.-8:44 p.m.

1 stop8h 48m

Seattle/Tacoma Intl

Sun 26/10

11:59 p.m.-12:10 p.m.

1 stop9h 11m

C$ 372

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 15/1

6:15 a.m.-11:32 a.m.

1 stop8h 17m

Seattle/Tacoma Intl

Wed 21/1

8:40 a.m.-9:14 p.m.

2 stops9h 34m

C$ 376

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 October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 410.

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$ 429. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 798. 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$ 582. Flights in the morning are often more expensive with an average ticket price of C$ 752.

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$ 589 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$ 408 on momondo.

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

As of September 2025, prices for New York LaGuardia Airport to Seattle flights are approximately 47% cheaper 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

Direct flights

None
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 7h 29m.

  • 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
Redmond
Olympia
Ocean Shores
Shoreline
Ellensburg
Tukwila
Gig Harbor
Renton
Mukilteo
Cle Elum
Poulsbo
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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