Cheap flights from Seattle to California from £55

If you are unable to visit California during the month of May, then departing from Seattle during the month March is also very affordable. Most momondo users find prices during this month for around £167.

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, Thursday 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 £265.

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as £80. In contrast, the most expensive time of day to depart to California is in the evening when prices are around £387.

Fly from Seattle/Tacoma Intl to Ontario 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 £182 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 £135 on momondo.

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

As of April 2026, 213 flights take off from Seattle and land in California each day. The most common flight departure time for this route is 19:00, with 38% of daily flights taking off in the afternoon.

As of April 2026, there are 1,494 flights per week flying from Seattle to California. The most common day of the week flights depart is Fri, with 22% of flights taking off on this day.