Los Angeles International (LAX) to Seattle-Tacoma International (SEA). Served by Alaska, Delta, Southwest.
| Departure | Return | Price |
|---|---|---|
| 05/28/2026 | 06/02/2026 | $77 |
| 06/08/2026 | 06/13/2026 | $128 |
| 06/02/2026 | 06/09/2026 | $132 |
| 06/03/2026 | 06/09/2026 | $132 |
| 06/01/2026 | 06/09/2026 | $142 |
| 06/04/2026 | 06/09/2026 | $142 |
| 05/28/2026 | 06/03/2026 | $143 |
| 05/28/2026 | 06/06/2026 | $143 |
| 05/29/2026 | 06/03/2026 | $143 |
| 05/29/2026 | 06/06/2026 | $143 |
Based on current fares, August is the cheapest month to fly from Los Angeles to Seattle, with average fares around $176 round trip (as low as $168).
See the full month-by-month and day-of-week price analysis
Best Time to Fly LAX → SEADeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Los Angeles to Seattle is August, with average round-trip fares around $176. Fares in August start as low as $168. The most expensive month is June, averaging $184.
A nonstop flight from Los Angeles to Seattle takes approximately 2h 30m.
Alaska, Delta, and Southwest fly from LAX to SEA. That's 3 airlines serving this route.
The cheapest flight from Los Angeles to Seattle currently starts at $77 round trip in economy class.
The average round-trip flight price from Los Angeles to Seattle is $204 in economy class.
The distance is 954 miles (1535 km). with a nonstop flight time of about 2h 30m. Airlines on this route include Alaska, Delta, Southwest. The lowest fare currently available is $77 departing in May. The average round-trip fare is $204.
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