Cheap flights from Seattle to Los Angeles from $107

The month of March is, on average, the cheapest month to fly to Los Angeles from Seattle, with most prices found around $218. If you aren’t able to travel during the month of March, then book flights to Los Angeles from Seattle during May instead. Flights to Los Angeles in May, while not as cheap as those in March, still average around $222.

Our data shows that Thursday is the least expensive day to fly to Los Angeles. Tickets to fly out on this day can be as low as $282. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Los Angeles on Monday is $386.

Our most recent data shows that the best time of day to fly to Los Angeles is in the morning. Flights from Seattle to Los Angeles during this time can be as low as $306. In the afternoon is when there is more demand to fly to Los Angeles, so prices are often more expensive at around $365 per ticket.

Fly from Seattle/Tacoma Intl to Los Angeles for the best Seattle/Tacoma Intl - 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 $256 when searching weeks out. 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 $184 on momondo.

There are 4 cabin classes available to choose from on Seattle to Los Angeles flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest, Alaska Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Los Angeles

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to Los Angeles from Seattle according to our data. Alaska Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Los Angeles. Keep in mind that there are 8 different airlines that fly to Los Angeles on a routine basis, so you have a few additional options to choose from.

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 142 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

The number of flights available between Seattle and Los Angeles is 70 per day as of August 2026. The most frequent departure time is 5:00PM, with 54% of daily flights leaving in the afternoon.

As of August 2026, there are 490 flights per week flying from Seattle to Los Angeles. The most common day of the week flights depart is Thu, with 23% of flights taking off on this day.