What are the cheapest airlines flying from New York LaGuardia Airport to Seattle round-trip?

Currently priced at $255, American Airlines will fly you from New York LaGuardia Airport to Seattle and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $258 and $262, respectively. These flights start at 40% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from New York LaGuardia Airport to Seattle one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $143. Users have also found prices from $144 and $149 on Delta and Southwest, respectively.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular airlines that fly from New York LaGuardia Airport to Seattle?

Before booking your flight from New York LaGuardia Airport to Seattle check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

What is the cheapest day to fly round-trip from New York LaGuardia Airport to Seattle?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 49% when planning your travel around this day of the week.

How far in advance should I book a flight from New York LaGuardia Airport to Seattle?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 75% on flights from New York LaGuardia Airport to Seattle compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $469. For sooner than that we have options available in the next 3 days from $687.

What is the cheapest month to fly from New York LaGuardia Airport to Seattle?

Our data shows that September tends to be the cheapest month to fly to Seattle from New York LaGuardia Airport. Users have commonly found prices around $416 for the month, but tickets can be as low as $169. Due to multiple factors, prepare for potentially higher prices in December.

What airport do you fly into for flights to Seattle from New York LaGuardia?

If you book a flight to Seattle from New York LaGuardia, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There is 1 flight from New York LaGuardia to Seattle/Tacoma Intl per day from 6 different airlines.

Can I find deals for flights from LaGuardia to Seattle that include hotel bookings?

Yes. In addition to deals on LaGuardia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from LaGuardia to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Seattle.

Can I find deals for business class flights from LaGuardia to Seattle?

Yes. Cheapflights offers flight deals from LaGuardia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$143+ Flights from New York LaGuardia Airport, NY to Seattle

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1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from New York LaGuardia to Seattle/Tacoma Intl are usually found in October or September, booked 58 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from LaGuardia to Seattle

Round-trip from	$255 (American Airlines)
One-way from	$143 (Trip.com)
Popular in	February
Cheapest in	October
Average price	$441

From New York LaGuardia to Seattle/Tacoma Intl

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One-way flight from New York LaGuardia to Seattle/Tacoma Intl

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Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from LaGuardia to Seattle

Cheapest flights from LaGuardia to Seattle
Explore the most affordable flight options available from LaGuardia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Sat 9/1311:30 amLGA - SEA

1 stop8h 59mAmerican Airlines

Sat 9/206:28 amSEA - LGA

1 stop9h 01mAmerican Airlines

Deal found 7/30

$255

Sat 8/3010:50 pmLGA - SEA

1 stop13h 44mFrontier

Wed 9/36:41 amSEA - LGA

1 stop12h 24mFrontier

Deal found 7/30

$258

Mon 8/184:00 pmLGA - SEA

1 stop10h 59mDelta

Wed 9/36:00 amSEA - LGA

1 stop7h 49mDelta

Deal found 7/29

$262

Thu 10/3011:15 amLGA - SEA

1 stop10h 37mUnited Airlines

Sun 11/211:59 pmSEA - LGA

1 stop7h 08mUnited Airlines

Deal found 7/29

$272

Tue 9/25:50 pmLGA - SEA

1 stop8h 45mSouthwest

Tue 9/96:45 amSEA - LGA

2 stops11h 45mSouthwest

Deal found 7/30

$282

Best flights from LaGuardia to Seattle
Discover carefully curated flight deals from LaGuardia to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Sat 9/1311:30 amLGA - SEA

1 stop8h 59mAmerican Airlines

Sat 9/206:28 amSEA - LGA

1 stop9h 01mAmerican Airlines

Deal found 7/30

$255

Sat 8/3010:50 pmLGA - SEA

1 stop13h 44mFrontier

Wed 9/36:41 amSEA - LGA

1 stop12h 24mFrontier

Deal found 7/30

$258

Mon 8/184:00 pmLGA - SEA

1 stop10h 59mDelta

Wed 9/36:00 amSEA - LGA

1 stop7h 49mDelta

Deal found 7/29

$262

Tue 9/25:50 pmLGA - SEA

1 stop8h 45mSouthwest

Tue 9/96:45 amSEA - LGA

2 stops11h 45mSouthwest

Deal found 7/30

$282

Tue 8/196:25 amLGA - SEA

1 stop8h 06mUnited Airlines

Tue 8/267:00 amSEA - LGA

1 stop8h 17mUnited Airlines

Deal found 7/31

$290

Last-minute flights from LaGuardia to Seattle
Discover last-minute flight deals from LaGuardia to Seattle. Data last updated July 31, 2025 and is based on user searches.

Wed 8/65:59 amLGA - SEA

2 stops13h 26mSpirit Airlines

Thu 8/75:30 pmSEA - LGA

2 stops19h 05mSpirit Airlines

Deal found 7/29

$468

Wed 8/65:20 pmLGA - SEA

1 stop9h 21mAmerican Airlines

Thu 8/1411:30 pmSEA - LGA

1 stop8h 00mAmerican Airlines

Deal found 7/30

$487

Wed 8/65:25 pmLGA - SEA

1 stop9h 34mUnited Airlines

Wed 8/207:10 amSEA - LGA

1 stop11h 45mUnited Airlines

Deal found 7/30

$517

Thu 8/75:05 pmLGA - SEA

1 stop8h 16mDelta

Tue 8/196:00 amSEA - LGA

1 stop7h 49mDelta

Deal found 7/30

$432

Fri 8/810:55 pmLGA - SEA

1 stop22h 51mMultiple Airlines

Mon 8/115:30 pmSEA - LGA

2 stops15h 59mMultiple Airlines

Deal found 7/29

$395

Fri 8/89:40 amLGA - SEA

1 stop15h 05mSouthwest

Tue 8/1910:45 pmSEA - LGA

1 stop9h 20mSouthwest

Deal found 7/29

$532

Sat 8/910:55 pmLGA - SEA

1 stop28h 39mFrontier

Sat 8/236:25 amSEA - LGA

1 stop12h 40mFrontier

Deal found 7/29

$268

Mon 8/184:00 pmLGA - SEA

1 stop10h 59mDelta

Wed 9/36:00 amSEA - LGA

1 stop7h 49mDelta

Deal found 7/29

$262

Tue 8/262:59 pmLGA - SEA

1 stop8h 43mUnited Airlines

Tue 9/211:54 pmSEA - LGA

1 stop7h 22mUnited Airlines

Deal found 7/29

$257

Wed 8/276:00 amLGA - SEA

2 stops10h 40mSouthwest

Wed 9/311:10 pmSEA - LGA

1 stop6h 55mSouthwest

Deal found 7/31

$282

Sat 8/3010:50 pmLGA - SEA

1 stop13h 44mFrontier

Wed 9/36:41 amSEA - LGA

1 stop12h 24mFrontier

Deal found 7/30

$258

One-way flights from LaGuardia to Seattle
Search for one-way flight options from LaGuardia to Seattle. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Sat 8/1610:55 pmLGA - SEA

1 stop22h 51mFrontier

Deal found 7/31

$143

Mon 8/186:00 pmLGA - SEA

1 stop8h 59mDelta

Deal found 7/31

$144

Thu 8/212:30 pmLGA - SEA

1 stop10h 15mSouthwest

Deal found 7/29

$149

Fri 9/194:25 pmLGA - SEA

1 stop8h 55mUnited Airlines

Deal found 7/29

$168

Tue 8/195:45 amLGA - SEA

1 stop9h 50mAmerican Airlines

Deal found 7/30

$174

Wed 9/310:50 pmLGA - SEA

2 stops26h 39mMultiple Airlines

Deal found 7/29

$178

Fri 9/121:51 pmLGA - SEA

2 stops11h 38mAlaska Airlines

Deal found 7/28

$205

Cheapflights Fare Finder

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

Sat 9/13

11:30 am-5:29 pm

1 stop8h 59m

Seattle/Tacoma Intl

Sat 9/20

6:28 am-6:29 pm

1 stop9h 01m

$255

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 8/30

10:50 pm-9:34 am

1 stop13h 44m

Seattle/Tacoma Intl

Wed 9/3

6:41 am-10:05 pm

1 stop12h 24m

$258

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Mon 8/18

4:00 pm-11:59 pm

1 stop10h 59m

Seattle/Tacoma Intl

Wed 9/3

6:00 am-4:49 pm

1 stop7h 49m

$262

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 9/2

5:50 pm-11:35 pm

1 stop8h 45m

Seattle/Tacoma Intl

Tue 9/9

6:45 am-9:30 pm

2 stops11h 45m

$282

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 8/19

6:25 am-11:31 am

1 stop8h 06m

Seattle/Tacoma Intl

Tue 8/26

7:00 am-6:17 pm

1 stop8h 17m

$290

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Sat 8/16

10:55 pm-6:46 pm

1 stop22h 51m

$143

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Mon 8/18

6:00 pm-11:59 pm

1 stop8h 59m

$144

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Thu 8/21

2:30 pm-9:45 pm

1 stop10h 15m

$149

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Fri 9/19

4:25 pm-10:20 pm

1 stop8h 55m

$168

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

Tue 8/19

5:45 am-12:35 pm

1 stop9h 50m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 12 results

Best time to book a flight from LaGuardia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from LaGuardia with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Seattle

How far ahead should I book a flight from New York LaGuardia Airport to Seattle?

To ensure you get the cheapest price possible for a flight from New York LaGuardia Airport to Seattle, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from New York LaGuardia Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from New York LaGuardia Airport to Seattle (average of $238). Flying from New York LaGuardia Airport to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGA to SEA?

One of the essential ways to save on airfare from New York LaGuardia Airport to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

What is the cheapest day to fly from New York LaGuardia Airport to Seattle?

Travelers seeking maximum savings on their New York LaGuardia Airport to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from New York LaGuardia Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Southwest

8.0

Very good

4,246 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Delta

8.0

Very good

7,981 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

United Airlines

7.4

Good

8,900 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Related info for your journey

What airport do you fly into for flights to Seattle from New York LaGuardia?
If you book a flight to Seattle from New York LaGuardia, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There is 1 flight from New York LaGuardia to Seattle/Tacoma Intl per day from 6 different airlines.
What are the cheapest airlines flying from New York LaGuardia Airport to Seattle round-trip?
Currently priced at $255, American Airlines will fly you from New York LaGuardia Airport to Seattle and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $258 and $262, respectively. These flights start at 40% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from New York LaGuardia Airport to Seattle one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $143. Users have also found prices from $144 and $149 on Delta and Southwest, respectively.
Can I find deals for flights from LaGuardia to Seattle that include hotel bookings?
Yes. In addition to deals on LaGuardia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from LaGuardia to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Seattle.
Can I find deals for business class flights from LaGuardia to Seattle?
Yes. Cheapflights offers flight deals from LaGuardia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from New York LaGuardia Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from New York LaGuardia Airport to Seattle (average of $238). Flying from New York LaGuardia Airport to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

SeaTac

Tukwila

Tacoma

Ocean Shores

Lakewood

Lynnwood

Lacey

Leavenworth

Renton

Olympia

Puyallup

Kent

Cle Elum

Chehalis

Kirkland

Issaquah

Aberdeen

Shoreline

Federal Way

Shelton

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Alternative routes for LaGuardia to Seattle

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West Seattle car rentals

Other flights to Seattle

Top 6 airlines flying from LaGuardia to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$138	Average$238	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$226	Average$438	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$266	Average$501	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$277	Average$417	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$285	Average$403	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$311	Average$557	FlexibilityNo cancel fee	On-time75%

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$143+ Cheap flights from LaGuardia, NY (LGA) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from LaGuardia to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from New York LaGuardia to Seattle/Tacoma Intl are usually found in October or September, booked 58 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from LaGuardia to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from LaGuardia to Seattle

Cheapest flights from LaGuardia to SeattleExplore the most affordable flight options available from LaGuardia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from LaGuardia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from New York LaGuardia Airport to Seattle that are best for you.

Best time to book a flight from LaGuardia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from LaGuardia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Seattle

How far ahead should I book a flight from New York LaGuardia Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from LaGuardia to Seattle. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from New York LaGuardia Airport to Seattle?

What is the cheapest time of day to fly from LGA to SEA?

Find hourly flight availability from LaGuardia to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

What is the cheapest day to fly from New York LaGuardia Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from LaGuardia to Seattle. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from New York LaGuardia Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from LaGuardia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from New York LaGuardia?

What are the cheapest airlines flying from New York LaGuardia Airport to Seattle round-trip?

What are the cheapest airlines to fly from New York LaGuardia Airport to Seattle one-way?

Can I find deals for flights from LaGuardia to Seattle that include hotel bookings?

How can I find direct flights from LaGuardia to Seattle?

Can I find deals for business class flights from LaGuardia to Seattle?

What is the cheapest month to book a flight from New York LaGuardia Airport to Seattle?

Traveling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for LaGuardia to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from LaGuardia to Seattle

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Cheapest flights from LaGuardia to Seattle
Explore the most affordable flight options available from LaGuardia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.