Cheap flights from California to Seattle from $48

In general, March is the cheapest month to fly from California to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $191. If you don’t want to visit Seattle in March, then you should wait until May to fly from California, when ticket prices are also cheap, with an average price of $197.

On average, the least expensive day to fly to Seattle from California is on a Friday. momondo users have found tickets for Friday departures for as low as $275. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from California because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $381.

Flying to Seattle from California in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $260 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $336. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Seattle from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $231 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from California for as low as $186 on momondo.

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

Delta, Southwest, and United Airlines are the most popular carriers operating from California to Seattle/Tacoma Intl

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from California according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 9 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

326 flights are operational daily from California to Seattle as of March 2026. The most popular departure time for this route is 11:00AM, with 48% of flights per day taking off at noon.

As of March 2026, there are 2,285 flights per week flying from California to Seattle. The most common day of the week flights depart is Fri, with 18% of flights taking off on this day.