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Cheap flights from New York LaGuardia Airport to Seattle from £83

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 5/11. 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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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.
Southwest Logo
14:45 - 20:35LGA-SEA
8h 50m1 stop
Southwest Logo
06:35 - 17:45SEA-LGA
8h 10m1 stop
£172Southwest
Find Deal
Mon, 10 Nov - Wed, 12 Nov
United Airlines Logo
06:00 - 12:47LGA-SEA
9h 47m1 stop
United Airlines Logo
10:53 - 21:07SEA-LGA
7h 14m1 stop
£176United Airlines
Find Deal
Sat, 15 Nov - Thu, 20 Nov
United Airlines Logo
06:00 - 12:47LGA-SEA
9h 47m1 stop
United Airlines Logo
10:53 - 23:16SEA-LGA
9h 23m1 stop
£187United Airlines
Find Deal
Mon, 10 Nov - Sat, 15 Nov
United Airlines Logo
06:15 - 11:30LGA-SEA
8h 15m1 stop
United Airlines Logo
23:30 - 10:07SEA-LGA
7h 37m1 stop
£203United Airlines
Find Deal
Sat, 15 Nov - Sat, 22 Nov
Southwest Logo
14:45 - 20:35LGA-SEA
8h 50m1 stop
Southwest Logo
06:35 - 17:45SEA-LGA
8h 10m1 stop
£206Southwest
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Delta Logo
08:00 - 14:54LGA-SEA
9h 54m1 stop
Delta Logo
06:00 - 18:46SEA-LGA
9h 46m1 stop
£209Delta
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Tue, 3 Mar - Wed, 4 Mar
Southwest Logo
14:45 - 00:35LGA-SEA
12h 50m1 stop
Southwest Logo
06:35 - 17:45SEA-LGA
8h 10m1 stop
£210Southwest
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Delta Logo
09:30 - 14:24LGA-SEA
7h 54m1 stop
Delta Logo
06:00 - 15:52SEA-LGA
6h 52m1 stop
£212Delta
Find Deal
Tue, 3 Mar - Wed, 4 Mar
American Airlines Logo
16:30 - 23:18LGA-SEA
9h 48m1 stop
American Airlines Logo
05:24 - 17:04SEA-LGA
8h 40m1 stop
£240American Airlines
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Mon, 17 Nov - Wed, 19 Nov
American Airlines Logo
16:30 - 23:18LGA-SEA
9h 48m1 stop
American Airlines Logo
00:41 - 11:29SEA-LGA
7h 48m1 stop
£258American Airlines
Find Deal
Mon, 17 Nov - Tue, 18 Nov

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
15 Nov
LGA06:00New York LaGuardia
9h 47m
1 stop
SEA12:47Seattle/Tacoma Intl
20 Nov
SEA10:53Seattle/Tacoma Intl
7h 14m
1 stop
LGA21:07New York LaGuardia
£176
Find similar
United Airlines
7 Nov
LGA15:20New York LaGuardia
10h 50m
1 stop
SEA23:10Seattle/Tacoma Intl
12 Nov
SEA07:10Seattle/Tacoma Intl
11h 35m
1 stop
LGA21:45New York LaGuardia
£180
Find similar
United Airlines
10 Nov
LGA06:00New York LaGuardia
9h 47m
1 stop
SEA12:47Seattle/Tacoma Intl
15 Nov
SEA10:53Seattle/Tacoma Intl
9h 23m
1 stop
LGA23:16New York LaGuardia
£187
Find similar

Southwest flights from New York LaGuardia Airport to Seattle

Our best Southwest deals on New York LaGuardia Airport to Seattle flight tickets
Southwest
10 Nov
LGA14:45New York LaGuardia
8h 50m
1 stop
SEA20:35Seattle/Tacoma Intl
12 Nov
SEA06:35Seattle/Tacoma Intl
8h 10m
1 stop
LGA17:45New York LaGuardia
£172
Find similar
Southwest
8 Nov
LGA06:00New York LaGuardia
13h 50m
1 stop
SEA16:50Seattle/Tacoma Intl
11 Nov
SEA06:35Seattle/Tacoma Intl
8h 10m
1 stop
LGA17:45New York LaGuardia
£176
Find similar
Southwest
13 Nov
LGA14:45New York LaGuardia
8h 50m
1 stop
SEA20:35Seattle/Tacoma Intl
19 Nov
SEA06:35Seattle/Tacoma Intl
8h 10m
1 stop
LGA17:45New York LaGuardia
£206
Find similar

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 31 October 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

Mon 10/11

14:45-20:35

1 stop8h 50m

Seattle/Tacoma Intl

Wed 12/11

06:35-17:45

1 stop8h 10m

£172

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 15/11

06:00-12:47

1 stop9h 47m

Seattle/Tacoma Intl

Thu 20/11

10:53-21:07

1 stop7h 14m

£176

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Mon 10/11

06:00-12:47

1 stop9h 47m

Seattle/Tacoma Intl

Sat 15/11

10:53-23:16

1 stop9h 23m

£187

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 15/11

06:15-11:30

1 stop8h 15m

Seattle/Tacoma Intl

Sat 22/11

23:30-10:07

1 stop7h 37m

£203

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 13/11

14:45-20:35

1 stop8h 50m

Seattle/Tacoma Intl

Wed 19/11

06:35-17:45

1 stop8h 10m

£206

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 3/3

08:00-14:54

1 stop9h 54m

Seattle/Tacoma Intl

Wed 4/3

06:00-18:46

1 stop9h 46m

£209

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 13/11

14:45-00:35

1 stop12h 50m

Seattle/Tacoma Intl

Wed 19/11

06:35-17:45

1 stop8h 10m

£210

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 3/3

09:30-14:24

1 stop7h 54m

Seattle/Tacoma Intl

Wed 4/3

06:00-15:52

1 stop6h 52m

£212

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Mon 17/11

16:30-23:18

1 stop9h 48m

Seattle/Tacoma Intl

Wed 19/11

05:24-17:04

1 stop8h 40m

£240

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Mon 17/11

16:30-23:18

1 stop9h 48m

Seattle/Tacoma Intl

Tue 18/11

00:41-11:29

1 stop7h 48m

£258

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 cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from New York LaGuardia Airport is in October. Flight prices, which tend to average around £172, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from New York LaGuardia Airport averaging around £260.

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 £234. 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 £516.

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 afternoon. momondo users have found flights departing from New York LaGuardia Airport to Seattle in the afternoon for as low as £314. 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 morning are often more expensive, with an average ticket price of £335.

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 £329 when searching weeks before you fly. 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 £204 on momondo.

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

As of October 2025, prices for New York LaGuardia Airport to Seattle flights are approximately 30% 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

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.
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  • 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 7h 54m 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
Fife
Renton
SeaTac

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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