Cheap flights from Washington to San Francisco from $70

If you aren’t able to travel to San Francisco during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $237.

The cheapest day to depart from State of Washington to San Francisco is on a Friday when prices can be found for as low as $290. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $495.

Our data shows that the cheapest State of Washington to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $319. Flights in the evening are often more expensive with an average ticket price of $387.

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

You are more likely to see cheaper flights to San Francisco from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $252 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from State of Washington for as low as $170 on momondo.

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

Southwest, Delta, and Alaska Airlines are the most popular carriers operating from Washington to San Francisco

Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Francisco from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 8 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

The number of flights available between State of Washington and San Francisco is 98 per day as of April 2026. The most frequent departure time is 7:00AM, with 49% of daily flights leaving at noon.

The number of flights available between State of Washington and San Francisco is 688 per week as of April 2026. The most frequent departure day is Fri, with 20% of weekly flights leaving on this day.