Cheap flights from Los Angeles to Seattle from $129

The month of March is, on average, the cheapest month to fly to Seattle from Los Angeles, with most prices found around $299. If you are unable to visit Seattle during the month of March, then departing from Los Angeles during the month May is also very affordable. Most momondo users find prices during this month for around $308.

The cheapest day to depart from Los Angeles to Seattle is on a Wednesday. Travellers who choose to depart for Seattle on a Wednesday will often find tickets for as low as $316. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Los Angeles to Seattle for around $415.

According to our data, the cheapest time of day to fly to Seattle is in the morning. momondo users have found flights departing from Los Angeles to Seattle in the morning for as low as $316. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is in the afternoon when prices are around $352.

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

You are more likely to see cheaper flights to Seattle from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $344 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Los Angeles for as low as $279 on momondo.

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

No. A direct flight is the cheapest option for a flight between Los Angeles to Seattle.

As of June 2026, prices for Los Angeles to Seattle flights are approximately 4% more expensive when compared to flights at the same time last year.

Historically, on average around 11% of flights between Los Angeles and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 148 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.

Tuesday 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 June 2026, 68 flights take off from Los Angeles and land in Seattle each day. The most common flight departure time for this route is 18:00, with 37% of daily flights taking off in the evening.

As of June 2026, there are 482 flights per week flying from Los Angeles to Seattle. The most common day of the week flights depart is Mon, with 23% of flights taking off on this day.