LAX - BFI

Find cheap flights from Los Angeles to Seattle

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Search 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 Los Angeles 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 Los Angeles to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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Cheap Flight Deals from Los Angeles to Seattle (LAX-BFI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles 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.

Recent round-trip flight deals from Los Angeles to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Los Angeles to Seattle.
Discover the best prices and deals for you by selecting your travel dates.
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LAX-BFI
960 mimulti-stop
BFI-LAX
960 mimulti-stop
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Good to know

Low season

September

High season

July
Best time to beat the crowds with an average 61% drop in price.
Most popular time to fly with an average 17% increase in price.

When to book flights from Los Angeles to Seattle

Are your dates flexible? Find out the best times to travel from Los Angeles 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 flights from Los Angeles to Seattle

  • Do I need a passport to fly between Los Angeles and Seattle?

    No, a passport isn't needed to fly from Los Angeles to Seattle. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Los Angeles to Seattle?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Los Angeles 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 Los Angeles to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Los Angeles to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Los Angeles 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 Los Angeles 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 Los Angeles with another airline. Booking your flights between Los Angeles and BFI 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 Los Angeles 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 Los Angeles up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Los Angeles to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Los Angeles 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 Los Angeles 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.
6.3
Spirit AirlinesOverall score based on 8120 reviews
5.9Comfort
5.0Entertainment
6.7Boarding
7.1Crew
5.1Food
Airline reviews

Arrived at 3:45am & found a long line where Spirit employees were standing at the counter but no one was working. Worried if I’d make the flight. Line started moving about 4:15 and got to check my bag at 4:30, realize my flight was at 5:25. Lines thru security were long, got to flight and walked right on. Spirit was cheapest when selected but not after $70/bag and $30/seat - extra $200.

6.0 GoodMarty, Nov 2024LAX - EWR
Read more Spirit Airlines reviews

Arrived at 3:45am & found a long line where Spirit employees were standing at the counter but no one was working. Worried if I’d make the flight. Line started moving about 4:15 and got to check my bag at 4:30, realize my flight was at 5:25. Lines thru security were long, got to flight and walked right on. Spirit was cheapest when selected but not after $70/bag and $30/seat - extra $200.

Over 2 hour delay due to “weather” but all other flights were taking off with no issues. We felt lied to the entire time as well.

LA to Seattle was a smooth process. Seattle to LA was delayed more Than 6hrs

Purchasing tickets on their website is upsetting, they take the consumer for a ride...I wanted 2 tickets for me and my friend but we only had one carry on between the two of us. It was impossible to only pay for one - I had to pay for 2 carry ons and blew $50! Shame on their sleazy business practices! The seats in the airplane are shockingly uncomfortable! In the future I will only fly Spirit if I have no other reasonably priced choice. The flight and the crew were good. But still: Go Southwest Airlines!!!

Terrible. Rude flight attendants. Uncomfortable seats. Nickel and dime every service. No in flight entertainment. First and last time to fly spirit.

Way better than I expected. The plane was so clean- the seats seemed brand new; although not super comfortable as they were lightly cushioned.. The crew helped me lift my bags up to the overhead bin which not many airlines do. I knew there would not be internet or food/snacks but you could buy some if you wanted .

Spirit airlines is very bad airline staff doesnt know how to treat passangers they didnt allow us in the flight we reached 45 minutes ago from flight departure but they denied nd said you are late Very disappointed i never reccomend spirit airlines

They charge you for everything. Even water. They accepted my dog as a service dog in my reservation. Then they asked for a DOT form that was impossible to provide. I had to pay $175 for my service to fly with me, that would protect me from death if I ate peanuts. They did not however, serve peanuts on the plane.

Traveling on Spirit Airlines was awful. It was by far the worst airline we ever traveled on. There is no food service at all unless you paid for it. Even a cuppa coffee or a water was $5 . I’ve never been in a seat so close to the one in front of me. There was literally 10-12 inches from my face to the seat back in front of me. We actually all had to laugh at the size of the tray table. Never see a tray table so small, and I don’t even see the point of it. By booking through Spirit, but after I paid for checked luggage, water, coffee, I would’ve been better off going with our usual airline where everything was included. It actually would’ve been cheaper and way more comfortable. We joked that we were actually surprised they didn’t give us tokens just to use the bathroom. My daughter even knows she would never travel on Spirit again, and she’s not high maintenance at all. Aweful

Flight kept being delayed on airport board without any announcement. We were delayed almost 2 hours. Finally boarded and we had no pilots so we sat on a hot plane with screaming kids and no pilots for 40 minutes. Finally he came aboard and did paperwork for 10 minutes before we took off. No apologies or any explanations or even excuses from ANY staff in the entire process. Worst experience ever on the ground and the air I have had.

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