LGA - SEA

$119 Find Cheap Flights from New York LaGuardia Airport to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from LaGuardia to Seattle departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from New York to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from New York to Seattle, as well as popular online travel agencies
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Flight Deals

Cheap Flights from LaGuardia to Seattle (LGA-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from LaGuardia to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from LaGuardia to Seattle

Thu, Sep 18 - Sat, Sep 20
Southwest Logo
3:40 pm - 12:05 amLGA-SEA
11h 25m1 stop
Southwest Logo
5:55 am - 5:40 pmSEA-LGA
8h 45m1 stop
$202Southwest
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Fri, Sep 5 - Mon, Sep 15
Frontier Logo
10:56 pm - 8:39 pmLGA-SEA
24h 43m1 stop
Frontier Logo
6:12 am - 10:11 pmSEA-LGA
12h 59m1 stop
$207Frontier
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Tue, Sep 16 - Wed, Sep 24
Delta Logo
6:29 pm - 11:42 pmLGA-SEA
8h 13m1 stop
Delta Logo
6:00 am - 4:42 pmSEA-LGA
7h 42m1 stop
$217Delta
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Mon, Sep 22 - Tue, Sep 30
American Airlines Logo
7:30 am - 1:59 pmLGA-SEA
9h 29m1 stop
American Airlines Logo
11:38 pm - 11:29 amSEA-LGA
8h 51m1 stop
$236American Airlines
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Tue, Sep 9 - Tue, Sep 16
United Airlines Logo
10:20 am - 3:32 pmLGA-SEA
8h 12m1 stop
United Airlines Logo
7:00 am - 6:17 pmSEA-LGA
8h 17m1 stop
$237United Airlines
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Mon, Sep 22 - Tue, Sep 30
American Airlines Logo
7:30 am - 1:59 pmLGA-SEA
9h 29m1 stop
American Airlines Logo
8:34 am - 8:06 pmSEA-LGA
8h 32m1 stop
$248American Airlines
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Wed, Sep 17 - Wed, Sep 24
 Logo
10:56 pm - 12:30 amLGA-SEA
28h 34m1 stop
 Logo
7:00 am - 7:04 pmSEA-LGA
33h 04m2 stops
Tue, Sep 16 - Mon, Dec 8
Delta Logo
9:59 am - 4:14 pmLGA-SEA
9h 15m1 stop
Delta Logo
1:45 pm - 11:47 pmSEA-LGA
7h 02m1 stop
$257Delta
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Mon, Sep 8 - Sat, Sep 13
United Airlines Logo
5:19 pm - 10:20 pmLGA-SEA
8h 01m1 stop
United Airlines Logo
11:58 pm - 12:36 pmSEA-LGA
9h 38m1 stop
$262United Airlines
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Mon, Sep 22 - Sat, Sep 27
 Logo
8:49 am - 10:59 pmLGA-SEA
41h 10m2 stops
 Logo
7:00 am - 10:11 pmSEA-LGA
12h 11m1 stop
Booking Insights

KAYAK's insights & trends for LaGuardia to Seattle flights

Get data-powered insights and trends into flights from LaGuardia to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from New York LaGuardia Airport to Seattle?

The average price of all round-trip flights from New York LaGuardia Airport to Seattle clicked on KAYAK for each day over the last 12 months.

For New York LaGuardia Airport to Seattle, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to New York LaGuardia Airport, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from New York LaGuardia Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from New York LaGuardia Airport to Seattle is October, where tickets cost $256 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $702 and $590 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from New York LaGuardia Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from New York LaGuardia Airport to Seattle, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$119
Best time to beat the crowds but there is an average 61% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from New York LaGuardia Airport to Seattle

When to book flights from LaGuardia to Seattle

Are your dates flexible? Find out the best times to travel from LaGuardia to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking New York LaGuardia Airport to Seattle flights

  • What is the cheapest flight from New York LaGuardia Airport to Seattle?

    In the last 3 days, the lowest price for a flight from New York LaGuardia Airport to Seattle was $119 for a one-way ticket and $202 for a round-trip.

  • Do I need a passport to fly between New York LaGuardia Airport and Seattle?

    No, a passport isn't needed to fly from New York LaGuardia Airport to Seattle. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from New York LaGuardia Airport to Seattle?

    Only Delta offers inflight Wi-Fi service on the New York LaGuardia Airport to Seattle flight route.

  • Which aircraft models fly most regularly from New York LaGuardia Airport to Seattle?

    The Airbus A330-200 is the aircraft model that flies most regularly on the New York LaGuardia Airport to Seattle flight route.

  • Which airline alliances offer flights from New York LaGuardia Airport to Seattle?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between New York LaGuardia Airport and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from New York to Seattle, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from New York to Seattle are Southwest and Alaska Airlines. With an average price for the route of $496 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $557 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from New York LaGuardia Airport to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from New York LaGuardia Airport to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from New York LaGuardia Airport to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from New York LaGuardia Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from New York LaGuardia Airport to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to New York LaGuardia Airport with another airline. Booking your flights between New York LaGuardia Airport and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from New York LaGuardia Airport to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from New York LaGuardia Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from LaGuardia to Seattle

 
See real verified KAYAK customer reviews for airlines flying from New York to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from LaGuardia to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

2.0 MediocreMike, Aug 2025AUS - BWI
Read more Southwest reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Check in process was terrible. Lady at counter didn’t know what she was doing

Delayed and took off even later than the scheduled delay time

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Food from the flight from Atlanta to Santiago was very poor..

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

Deplaning was delayed because of Jetbridge equipment issues in MKE, causing an issue on an otherwise great flight.

Not really their fault, but a 4.5 hour delay is pretty brutal

we were delayed going into and out of Newark Airport by 3-4 hours each way. Excuses/reasons given were misleading. Weather was cited at first when there was NO weather issue. Turns out Newark had a shortage of staff and runway construction. United knew this and should have NOT scheduled flights when they know we would be delayed so long. I will avoid United and EWR airport at all cost going forward. Delta never looked so good.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

We arrived 4 hours early and still almost missed the flight because they weren’t able to access one of the boarding tickets. They then sent hour bags late and we were all of our without clothing and eventually had to take an expensive cab back and forth to the airport as they wouldn’t deliver the bag which arrived late at night that day and we would have to wait until noon the began day (messing up a second day of plans). Also, all the food has dairy or pork. No vegan or even vegetarian option in the flight—even for purchase.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

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