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Cheap flights from New York LaGuardia Airport to Seattle from £124

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 11/8. 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
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Find the cheapest flights from New York LaGuardia Airport to Seattle

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
17:25 - 22:45
LGA
-
SEA
8h 20m
1 stop
United Airlines Logo
07:00 - 17:25
SEA
-
LGA
7h 25m
1 stop
£241United Airlines
Tue, 8 Sep - Wed, 9 Sep
United Airlines Logo
17:25 - 22:45
LGA
-
SEA
8h 20m
1 stop
United Airlines Logo
23:00 - 10:17
SEA
-
LGA
8h 17m
1 stop
£247United Airlines
Fri, 11 Sep - Mon, 14 Sep
United Airlines Logo
17:25 - 22:43
LGA
-
SEA
8h 18m
1 stop
United Airlines Logo
23:00 - 11:17
SEA
-
LGA
9h 17m
1 stop
£248United Airlines
Tue, 18 Aug - Tue, 25 Aug
United Airlines Logo
16:59 - 23:04
LGA
-
SEA
9h 05m
1 stop
United Airlines Logo
23:00 - 09:13
SEA
-
LGA
7h 13m
1 stop
£249United Airlines
Fri, 18 Sep - Mon, 21 Sep
United Airlines Logo
16:25 - 22:43
LGA
-
SEA
9h 18m
1 stop
United Airlines Logo
23:00 - 09:13
SEA
-
LGA
7h 13m
1 stop
£250United Airlines
Wed, 12 Aug - Tue, 1 Sep
United Airlines Logo
13:25 - 19:07
LGA
-
SEA
8h 42m
1 stop
United Airlines Logo
07:00 - 18:25
SEA
-
LGA
8h 25m
1 stop
£251United Airlines
Sat, 5 Sep - Sat, 12 Sep
United Airlines Logo
06:10 - 11:32
LGA
-
SEA
8h 22m
1 stop
United Airlines Logo
23:00 - 09:13
SEA
-
LGA
7h 13m
1 stop
£253United Airlines
Sun, 30 Aug - Mon, 14 Sep
Southwest Logo
10:55 - 17:55
LGA
-
SEA
10h 00m
1 stop
Southwest Logo
23:00 - 09:40
SEA
-
LGA
7h 40m
1 stop
£254Southwest
Tue, 11 Aug - Tue, 18 Aug
Southwest Logo
15:15 - 23:05
LGA
-
SEA
10h 50m
2 stops
Southwest Logo
23:00 - 09:40
SEA
-
LGA
7h 40m
1 stop
£258Southwest
Tue, 11 Aug - Tue, 18 Aug
American Airlines Logo
18:59 - 00:50
LGA
-
SEA
8h 51m
1 stop
American Airlines Logo
06:25 - 17:30
SEA
-
LGA
8h 05m
1 stop
£260American Airlines
Thu, 13 Aug - Wed, 19 Aug

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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
8 Sept
LGA17:25New York LaGuardia
8h 20m
1 stop
SEA22:45Seattle/Tacoma Intl
9 Sept
SEA07:00Seattle/Tacoma Intl
7h 25m
1 stop
LGA17:25New York LaGuardia
£241
United Airlines
11 Sept
LGA17:25New York LaGuardia
8h 20m
1 stop
SEA22:45Seattle/Tacoma Intl
14 Sept
SEA23:00Seattle/Tacoma Intl
8h 17m
1 stop
LGA10:17New York LaGuardia
£247
United Airlines
18 Aug
LGA17:25New York LaGuardia
8h 18m
1 stop
SEA22:43Seattle/Tacoma Intl
25 Aug
SEA23:00Seattle/Tacoma Intl
9h 17m
1 stop
LGA11:17New York LaGuardia
£248

Delta flights from New York LaGuardia Airport to Seattle

Our best Delta deals on New York LaGuardia Airport to Seattle flight tickets
Delta
2 Sept
LGA16:55New York LaGuardia
8h 10m
1 stop
SEA22:05Seattle/Tacoma Intl
9 Sept
SEA07:20Seattle/Tacoma Intl
10h 21m
1 stop
LGA20:41New York LaGuardia
£269
Delta
25 Aug
LGA14:29New York LaGuardia
10h 36m
1 stop
SEA22:05Seattle/Tacoma Intl
26 Aug
SEA06:00Seattle/Tacoma Intl
10h 20m
1 stop
LGA19:20New York LaGuardia
£277
Delta
18 Aug
LGA17:00New York LaGuardia
9h 57m
1 stop
SEA23:57Seattle/Tacoma Intl
26 Aug
SEA06:00Seattle/Tacoma Intl
8h 50m
1 stop
LGA17:50New York LaGuardia
£292

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 19 June 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 return flight

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 8/9

17:25-22:45

1 stop8h 20m

Seattle/Tacoma Intl

Wed 9/9

07:00-17:25

1 stop7h 25m

£241

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 11/9

17:25-22:45

1 stop8h 20m

Seattle/Tacoma Intl

Mon 14/9

23:00-10:17

1 stop8h 17m

£247

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 18/8

17:25-22:43

1 stop8h 18m

Seattle/Tacoma Intl

Tue 25/8

23:00-11:17

1 stop9h 17m

£248

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 18/9

16:59-23:04

1 stop9h 05m

Seattle/Tacoma Intl

Mon 21/9

23:00-09:13

1 stop7h 13m

£249

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Wed 12/8

16:25-22:43

1 stop9h 18m

Seattle/Tacoma Intl

Tue 1/9

23:00-09:13

1 stop7h 13m

£250

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 5/9

13:25-19:07

1 stop8h 42m

Seattle/Tacoma Intl

Sat 12/9

07:00-18:25

1 stop8h 25m

£251
Fastest return journey

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sun 30/8

06:10-11:32

1 stop8h 22m

Seattle/Tacoma Intl

Mon 14/9

23:00-09:13

1 stop7h 13m

£253

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 11/8

10:55-17:55

1 stop10h 00m

Seattle/Tacoma Intl

Tue 18/8

23:00-09:40

1 stop7h 40m

£254

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 11/8

15:15-23:05

2 stops10h 50m

Seattle/Tacoma Intl

Tue 18/8

23:00-09:40

1 stop7h 40m

£258

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 13/8

18:59-00:50

1 stop8h 51m

Seattle/Tacoma Intl

Wed 19/8

06:25-17:30

1 stop8h 05m

£260

Flights are sorted by cheapest return 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?

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from New York LaGuardia Airport is in November. Flight prices, which tend to average around £201, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Seattle, with average flight prices from New York LaGuardia Airport averaging around £212.

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

According to our data, Wednesday is the cheapest day to fly to Seattle from New York LaGuardia Airport. The lowest ticket price found for a Wednesday departure recently was £232. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Saturday is £519.

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

According to our data, the cheapest time of day to fly to Seattle is in the morning. momondo users have found flights departing from New York LaGuardia Airport to Seattle in the morning for as low as £297. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive, with an average ticket price of £309.

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

As of June 2026, prices for New York LaGuardia Airport to Seattle flights are approximately 29% 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 return 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

8h 28m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Seattle takes 8h 28m
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?

    A flight from New York LaGuardia to Seattle/Tacoma Intl will travel around 2404.7 mi. Typically, this will take 8h 28m by plane in normal conditions.

  • 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 refresh daily.

  • 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 required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
Kirkland
Fife
Ashford
Tacoma
SeaTac
Tukwila

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from New York to Seattle. momondo saves you time and could save you money on your trip.

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

All flight searches from New York to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for New York to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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