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Cheap flights from New York LaGuardia Airport to Seattle from C$ 198

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 8/4. 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
9:10 a.m. - 4:37 p.m.
LGA
-
SEA
10h 27m
1 stop
United Airlines Logo
7:00 a.m. - 5:13 p.m.
SEA
-
LGA
7h 13m
1 stop
C$ 401United Airlines
Tue, 14 Apr - Tue, 21 Apr
Southwest Logo
3:55 p.m. - 12:10 a.m.
LGA
-
SEA
11h 15m
1 stop
Southwest Logo
6:00 a.m. - 3:45 p.m.
SEA
-
LGA
6h 45m
1 stop
C$ 408Southwest
Tue, 14 Apr - Tue, 21 Apr
Southwest Logo
9:55 a.m. - 6:15 p.m.
LGA
-
SEA
11h 20m
2 stops
Southwest Logo
11:55 p.m. - 11:20 a.m.
SEA
-
LGA
8h 25m
1 stop
C$ 415Southwest
Sat, 25 Apr - Sat, 2 May
Southwest Logo
7:25 a.m. - 1:05 p.m.
LGA
-
SEA
8h 40m
1 stop
Southwest Logo
6:00 a.m. - 5:55 p.m.
SEA
-
LGA
8h 55m
1 stop
C$ 421Southwest
Thu, 9 Apr - Wed, 15 Apr
Southwest Logo
8:30 a.m. - 11:35 p.m.
LGA
-
SEA
18h 05m
2 stops
Southwest Logo
11:55 p.m. - 12:45 p.m.
SEA
-
LGA
9h 50m
1 stop
C$ 423Southwest
Wed, 22 Apr - Sun, 26 Apr
United Airlines Logo
4:59 p.m. - 10:59 p.m.
LGA
-
SEA
9h 00m
1 stop
United Airlines Logo
7:00 a.m. - 5:18 p.m.
SEA
-
LGA
7h 18m
1 stop
C$ 424United Airlines
Fri, 1 May - Sat, 9 May
Southwest Logo
6:00 a.m. - 1:05 p.m.
LGA
-
SEA
10h 05m
1 stop
Southwest Logo
9:20 a.m. - 10:45 p.m.
SEA
-
LGA
10h 25m
2 stops
C$ 428Southwest
Thu, 9 Apr - Wed, 15 Apr
Southwest Logo
6:00 a.m. - 1:05 p.m.
LGA
-
SEA
10h 05m
1 stop
Southwest Logo
5:45 a.m. - 4:15 p.m.
SEA
-
LGA
7h 30m
1 stop
C$ 434Southwest
Fri, 17 Apr - Sat, 18 Apr
Delta Logo
2:55 p.m. - 8:29 p.m.
LGA
-
SEA
8h 34m
1 stop
Delta Logo
9:05 a.m. - 9:56 p.m.
SEA
-
LGA
9h 51m
1 stop
C$ 435Delta
Tue, 1 Sep - Wed, 9 Sep
Southwest Logo
2:00 p.m. - 11:30 p.m.
LGA
-
SEA
12h 30m
1 stop
Southwest Logo
9:20 a.m. - 10:20 p.m.
SEA
-
LGA
10h 00m
2 stops
C$ 437Southwest
Thu, 16 Apr - Tue, 21 Apr

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
14 Apr
LGA9:10 a.m.New York LaGuardia
10h 27m
1 stop
SEA4:37 p.m.Seattle/Tacoma Intl
21 Apr
SEA7:00 a.m.Seattle/Tacoma Intl
7h 13m
1 stop
LGA5:13 p.m.New York LaGuardia
C$ 401
United Airlines
1 May
LGA4:59 p.m.New York LaGuardia
9h 00m
1 stop
SEA10:59 p.m.Seattle/Tacoma Intl
9 May
SEA7:00 a.m.Seattle/Tacoma Intl
7h 18m
1 stop
LGA5:18 p.m.New York LaGuardia
C$ 424
United Airlines
17 Apr
LGA4:58 p.m.New York LaGuardia
8h 35m
1 stop
SEA10:33 p.m.Seattle/Tacoma Intl
19 Apr
SEA11:59 p.m.Seattle/Tacoma Intl
7h 19m
1 stop
LGA10:18 a.m.New York LaGuardia
C$ 456

Southwest flights from New York LaGuardia Airport to Seattle

Our best Southwest deals on New York LaGuardia Airport to Seattle flight tickets
Southwest
14 Apr
LGA3:55 p.m.New York LaGuardia
11h 15m
1 stop
SEA12:10 a.m.Seattle/Tacoma Intl
21 Apr
SEA6:00 a.m.Seattle/Tacoma Intl
6h 45m
1 stop
LGA3:45 p.m.New York LaGuardia
C$ 408
Southwest
25 Apr
LGA9:55 a.m.New York LaGuardia
11h 20m
2 stops
SEA6:15 p.m.Seattle/Tacoma Intl
2 May
SEA11:55 p.m.Seattle/Tacoma Intl
8h 25m
1 stop
LGA11:20 a.m.New York LaGuardia
C$ 415
Southwest
9 Apr
LGA7:25 a.m.New York LaGuardia
8h 40m
1 stop
SEA1:05 p.m.Seattle/Tacoma Intl
15 Apr
SEA6:00 a.m.Seattle/Tacoma Intl
8h 55m
1 stop
LGA5:55 p.m.New York LaGuardia
C$ 421

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 20 March 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

Tue 14/4

9:10 a.m.-4:37 p.m.

1 stop10h 27m

Seattle/Tacoma Intl

Tue 21/4

7:00 a.m.-5:13 p.m.

1 stop7h 13m

C$ 401

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 14/4

3:55 p.m.-12:10 a.m.

1 stop11h 15m

Seattle/Tacoma Intl

Tue 21/4

6:00 a.m.-3:45 p.m.

1 stop6h 45m

C$ 408

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 25/4

9:55 a.m.-6:15 p.m.

2 stops11h 20m

Seattle/Tacoma Intl

Sat 2/5

11:55 p.m.-11:20 a.m.

1 stop8h 25m

C$ 415

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 9/4

7:25 a.m.-1:05 p.m.

1 stop8h 40m

Seattle/Tacoma Intl

Wed 15/4

6:00 a.m.-5:55 p.m.

1 stop8h 55m

C$ 421

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 22/4

8:30 a.m.-11:35 p.m.

2 stops18h 05m

Seattle/Tacoma Intl

Sun 26/4

11:55 p.m.-12:45 p.m.

1 stop9h 50m

C$ 423
Quickest round-trip

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 1/5

4:59 p.m.-10:59 p.m.

1 stop9h 00m

Seattle/Tacoma Intl

Sat 9/5

7:00 a.m.-5:18 p.m.

1 stop7h 18m

C$ 424

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 9/4

6:00 a.m.-1:05 p.m.

1 stop10h 05m

Seattle/Tacoma Intl

Wed 15/4

9:20 a.m.-10:45 p.m.

2 stops10h 25m

C$ 428

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 17/4

6:00 a.m.-1:05 p.m.

1 stop10h 05m

Seattle/Tacoma Intl

Sat 18/4

5:45 a.m.-4:15 p.m.

1 stop7h 30m

C$ 434

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 1/9

2:55 p.m.-8:29 p.m.

1 stop8h 34m

Seattle/Tacoma Intl

Wed 9/9

9:05 a.m.-9:56 p.m.

1 stop9h 51m

C$ 435

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 16/4

2:00 p.m.-11:30 p.m.

1 stop12h 30m

Seattle/Tacoma Intl

Tue 21/4

9:20 a.m.-10:20 p.m.

2 stops10h 00m

C$ 437

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$ 386.

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

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 482. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 867. 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$ 572. Flights in the morning are often more expensive with an average ticket price of C$ 746.

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$ 498 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$ 351 on momondo.

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

As of March 2026, prices for New York LaGuardia Airport to Seattle flights are approximately 11% 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

16h 37m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Seattle takes 16h 37m
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 16h 37m.

  • 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
Lynnwood
Leavenworth
SeaTac
Tacoma
Marysville
Redmond
Kirkland
Puyallup
Tukwila
Olympia
Ocean Shores
Ellensburg
Bainbridge Island
Gig Harbor
Renton
Centralia
Kent
Edmonds
Federal Way
Shelton

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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