Cheap flights from Los Angeles to Seattle (LAX - BFI)
LAX — BFI
Aug 5 — Aug 121
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Los Angeles to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) to Seattle (BFI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.
Popular in | July |
|---|---|
Cheapest in | January |
Average price | $266 |
Best time to book a flight from Los Angeles to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Los Angeles 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 Los Angeles to Seattle
What is the cheapest time of day to fly from LAX to BFI?
Find hourly flight availability from Los Angeles 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.
It’s typically best to fly out from Los Angeles to Seattle in the afternoon. Doing so could potentially save you 59% on the flight price compared to flying at noon, which is usually more expensive.