Cheap flights from Seattle to San Jose from C$ 109

In general, October is the cheapest month to fly from Seattle to San Jose, California. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 292. If you don’t want to visit San Jose, California in October, then you should wait until March to fly from Seattle, when ticket prices are also cheap, with an average price of C$ 339.

According to our data, Tuesday is the cheapest day to fly to San Jose, California from Seattle. The lowest ticket price found for a Tuesday departure recently was C$ 176. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to San Jose, California for around C$ 397.

Our most recent data shows that the best time of day to fly to San Jose, California is in the afternoon. Flights from Seattle to San Jose, California during this time can be as low as C$ 356. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 712 on average. Flights to San Jose, California from Seattle at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to San Jose, California from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San Jose, California for around C$ 380 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Jose, California from Seattle for as low as C$ 285 on momondo.

There are 2 cabin classes available to choose from on Seattle to San Jose, California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta and Southwest are the most popular carriers operating from Seattle/Tacoma Intl to San Jose

Alaska Airlines, Delta and Southwest are the top three most popular airlines that fly to San Jose, California from Seattle according to our data. Alaska Airlines is the first choice among our users, with 66% of people opting to fly with this airline when travelling to San Jose, California. Keep in mind that there are 5 different airlines that fly to San Jose, California on a routine basis, so you have a few additional options to choose from.

24 flights are operational daily from Seattle to San Jose, California as of September 2026. The most popular departure time for this route is 8:00p.m., with 50% of flights per day taking off in the afternoon.

As of September 2026, there are 172 flights per week flying from Seattle to San Jose, California. The most common day of the week flights depart is Fri, with 22% of flights taking off on this day.