Cheap flights from Seattle to Los Angeles from £51

The month of March is, on average, the cheapest month to fly to Los Angeles from Seattle, with most prices found around £145. If you aren’t able to travel to Los Angeles during the month of March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of £147.

The cheapest day to depart from Seattle to Los Angeles is on a Wednesday. Travellers who choose to depart for Los Angeles on a Wednesday will often find tickets for as low as £151. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around £266. These prices are subject to change though, so be sure to set up a Price Alert for flights to Los Angeles.

Our most recent data shows that the best time of day to fly to Los Angeles is in the afternoon. Flights from Seattle to Los Angeles during this time can be as low as £80. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £387 on average. Flights to Los Angeles from Seattle in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Seattle/Tacoma Intl to Los Angeles Los Angeles for the best Seattle/Tacoma Intl - Los Angeles Los Angeles flight prices

You are more likely to see cheaper flights to Los Angeles from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Los Angeles for around £177 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Los Angeles from Seattle for as low as £128 on momondo.

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Los Angeles Los Angeles flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 29% on your flight if you consider stops on a Seattle to Los Angeles flight.

As of March 2026, prices for Seattle to Los Angeles flights are approximately 50% cheaper when compared to flights at the same time last year.

Historically, on average around 11% of flights between Seattle and Los Angeles have experienced a delay on any given week. The average delay length over the past 12 months has been 137 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

As of March 2026, 72 flights take off from Seattle and land in Los Angeles each day. The most common flight departure time for this route is 06:00, with 41% of daily flights taking off in the afternoon.

508 flights are operational weekly from Seattle to Los Angeles as of March 2026. The most popular departure day for this route is Tue, with 21% of flights per week taking off on this day.