Route · LAX → SEA
Flights from Los Angeles to Seattle
The LAX–SEA corridor is one of the busiest short-haul lanes on the US West Coast, covering roughly 960 miles with a typical block time just over two hours. Alaska Airlines dominates the route and treats it as a core part of its backbone network, operating the sector frequently throughout the day on narrowbody jets such as the Boeing 737; American, Delta, and United also maintain meaningful presences, while Virgin America historically served it before its absorption into Alaska. A practical note worth remembering: at LAX, Alaska primarily operates from Terminal 6, while other carriers scatter across different terminals, so connection buffers of under an hour can be tight if you're arriving on one carrier and departing on another. Fare-wise, midweek departures on Tuesdays and Wednesdays tend to offer softer pricing, and late-autumn travel outside the Thanksgiving window often produces the most competitive economy fares on this well-supplied route.
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Cheapest dates to fly
Live prices · powered by AviasalesThe calendar below pulls live fares from our search partner for Los Angeles (LAX) → Seattle (SEA). Use the year… view to spot the cheapest week to fly, the day-of-week patterns most travellers miss, and any shoulder-season dips worth shifting your trip around. Prices refresh every few hours, so what you see is what your booking page should look like a moment later — click any date to jump straight to the fare on Aviasales.
Airlines on this route
7 carriersThe 7 carriers we currently track on the Los Angeles–Seattle route, from full-service flag carriers to low-cost competitors. Tap any airline for its full profile,… baggage rules, fleet context, and a live fare search pre-filtered to that carrier — useful if you're loyal to a frequent-flyer programme, want to compare onboard product on the same dates, or are weighing a cheaper one-stop against a pricier nonstop.
Flights from Los Angeles to Seattle
Live schedule · powered by AviasalesBelow is the published weekly schedule for nonstop and one-stop services from Los Angeles to Seattle — the actual flight numbers, departure and arrival times… your booking page will pull from. Use it to plan around departure preferences (early morning vs late evening), see which carriers fly on which weekdays, or pick a connection that lets you sleep in your own bed before a long-haul leg. Click any row to load it directly in the search.
Airport guides
Quick links into the airport profiles at both ends of the route. Each guide covers terminal layout, the airlines that base hubs at LAX and… SEA, the other routes those airports serve, and the ground-transit options most travellers wish they'd read about before landing — the practical context you only really need to know once you've booked, but want to skim before you do.