Popular airlines from Los Angeles to Seattle, WA (SEA-Seattle - Tacoma Intl.)
Alaska AirlinesAlaska Airlines
Frontier AirlinesFrontier Airlines
DeltaDelta
UnitedUnited
American AirlinesAmerican Airlines
Southwest AirlinesSouthwest Airlines
Hawaiian AirlinesHawaiian Airlines
Today's featured flight deals from Los Angeles to Seattle, WA (SEA-Seattle - Tacoma Intl.)
- Los Angeles (LAX) to Seattle (SEA).Alaska Airlines, nonstop.Departing on Tue, Sep 16 at 2:06pm from Los Angeles, arriving at 4:58pm in Seattle.Returning on Tue, Sep 23 at 4:59pm from Seattle, arriving at 7:48pm in Los Angeles.Select Alaska Airlines flight departing on Tue, Sep 16 at 2:06pm from Los Angeles, returning on Tue, Sep 23 at 4:59pm from Seattle priced at $19785% less than typical$197
- Burbank (BUR) to Seattle (SEA).Alaska Airlines, nonstop.Departing on Thu, Sep 18 at 7:42pm from Burbank, arriving at 10:32pm in Seattle.Returning on Mon, Sep 22 at 5:20pm from Seattle, arriving at 9:45pm in Burbank.Select Alaska Airlines flight departing on Thu, Sep 18 at 7:42pm from Burbank, returning on Mon, Sep 22 at 5:20pm from Seattle priced at $19445% less than typical$194
- Ontario (ONT) to Seattle (SEA).Delta, nonstop.Departing on Thu, Sep 11 at 6:00am from Ontario, arriving at 8:54am in Seattle.Returning on Sun, Sep 14 at 8:15am from Seattle, arriving at 11:09am in Ontario.Select Delta flight departing on Thu, Sep 11 at 6:00am from Ontario, returning on Sun, Sep 14 at 8:15am from Seattle priced at $27720% less than typical$277
- Ontario (ONT) to Seattle (SEA).Delta, nonstop.Departing on Mon, Sep 8 at 6:00am from Ontario, arriving at 8:48am in Seattle.Returning on Sun, Sep 14 at 8:15am from Seattle, arriving at 11:09am in Ontario.Select Delta flight departing on Mon, Sep 8 at 6:00am from Ontario, returning on Sun, Sep 14 at 8:15am from Seattle priced at $27720% less than typical$277
- Burbank (BUR) to Seattle (SEA).Alaska Airlines, nonstop.Departing on Tue, Sep 16 at 1:06pm from Burbank, arriving at 3:50pm in Seattle.Returning on Sat, Sep 20 at 8:12am from Seattle, arriving at 10:55am in Burbank.Select Alaska Airlines flight departing on Tue, Sep 16 at 1:06pm from Burbank, returning on Sat, Sep 20 at 8:12am from Seattle priced at $17730% less than typical$177
- Los Angeles (LAX) to Seattle (SEA).Alaska Airlines, nonstop.Departing on Mon, Sep 15 at 8:00am from Los Angeles, arriving at 10:58am in Seattle.Returning on Sun, Sep 21 at 7:00am from Seattle, arriving at 9:50am in Los Angeles.Select Alaska Airlines flight departing on Mon, Sep 15 at 8:00am from Los Angeles, returning on Sun, Sep 21 at 7:00am from Seattle priced at $23720% less than typical$237
- Los Angeles (LAX) to Seattle (SEA).Alaska Airlines, nonstop.Departing on Mon, Sep 15 at 8:00am from Los Angeles, arriving at 10:58am in Seattle.Returning on Sun, Sep 21 at 9:25pm from Seattle, arriving on Mon, Sep 22 at 12:20am in Los Angeles.Select Alaska Airlines flight departing on Mon, Sep 15 at 8:00am from Los Angeles, returning on Sun, Sep 21 at 9:25pm from Seattle priced at $23720% less than typical$237
- Ontario (ONT) to Seattle (SEA).Delta, nonstop.Departing on Thu, Sep 11 at 5:40pm from Ontario, arriving at 8:31pm in Seattle.Returning on Wed, Sep 17 at 8:15am from Seattle, arriving at 11:09am in Ontario.Select Delta flight departing on Thu, Sep 11 at 5:40pm from Ontario, returning on Wed, Sep 17 at 8:15am from Seattle priced at $22720% less than typical$227
- Santa Ana (SNA) to Seattle (SEA).Delta, nonstop.Departing on Mon, Sep 15 at 6:55pm from Santa Ana, arriving at 9:49pm in Seattle.Returning on Sat, Sep 20 at 7:30am from Seattle, arriving at 10:24am in Santa Ana.Select Delta flight departing on Mon, Sep 15 at 6:55pm from Santa Ana, returning on Sat, Sep 20 at 7:30am from Seattle priced at $20720% less than typical$207
Cheap Flights from Los Angeles to Seattle (QLA-SEA)
Prices were available within the past 7 days and start at $62 for one-way flights and $90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find the cheapest month to fly from Los Angeles (QLA) to Seattle (SEA)
January is typically the cheapest month to fly
Graph displaying average flight prices per month
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Los Angeles - Ontario Intl. |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United |
Roundtrip price | $90 |
Distance | 956 mi |
Los Angeles to Seattle Flights
The cheapest times to fly from Los Angeles to Seattle
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Los Angeles to Seattle are during the month of September. You can find some of the cheapest flights from Los Angeles to Seattle with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Los Angeles to Seattle
Sunday is one of the best days to book for cheap flights from Los Angeles to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Los Angeles to Seattle
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Los Angeles to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $62 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Los Angeles to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Los Angeles to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.