Cheap flights from Seattle to California from £51

If you are unable to visit California during the month of January, then departing from Seattle during the month March is also very affordable. Most momondo users find prices during this month for around £195.

The cheapest day to depart on your flight to California is on a Saturday when prices can be found for as low as £65. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £880.

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as £150. In contrast, the most expensive time of day to depart to California is at midday when prices are around £880.

Fly from Seattle/Tacoma Intl to San Francisco for the best Seattle/Tacoma Intl - California flight prices

You are more likely to see cheaper flights to California from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around £199 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Seattle for as low as £146 on momondo.

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

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

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to California from Seattle according to our data. Alaska Airlines is the first choice among our users, with 58% of people opting to fly with this airline when travelling to California. Keep in mind that there are 3 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

As of November 2026, 154 flights take off from Seattle and land in California each day. The most common flight departure time for this route is 19:00, with 40% of daily flights taking off in the afternoon.

As of November 2026, there are 1,082 flights per week flying from Seattle to California. The most common day of the week flights depart is Mon, with 28% of flights taking off on this day.