Cheap flights from Portland to San Jose from $79

The month of October is, on average, the cheapest month to fly to San Jose, California from Portland, with most prices found around $187. If you are unable to visit San Jose, California during the month of October, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around $189.

On average, the least expensive day to fly to San Jose, California from Portland is on a Saturday. momondo users have found tickets for Saturday departures for as low as $243. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portland to San Jose, California for around $366.

The cheapest time of day to fly to San Jose, California is in the evening when flights can be purchased for as low as $239. In the afternoon is when there is more demand to fly to San Jose, California, so prices are often more expensive at around $275 per ticket.

Fly from Portland to San Jose for the best Portland - San Jose flight prices

You are more likely to see cheaper flights to San Jose, California from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Jose, California for around $236 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 Portland for as low as $153 on momondo.

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

Southwest and Alaska Airlines are the most popular carriers operating from Portland to San Jose

Alaska Airlines, United Airlines and Southwest are the top three most popular airlines that fly to San Jose, California from Portland according to our data. Alaska Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to San Jose, California. Keep in mind that there are 7 different airlines that fly to San Jose, California on a routine basis, so you have a few additional options to choose from.

6 flights are operational daily from Portland to San Jose, California as of February 2026. The most popular departure time for this route is 2:00PM, with 61% of flights per day taking off in the afternoon.

The number of flights available between Portland and San Jose, California is 46 per week as of February 2026. The most frequent departure day is Thu, with 24% of weekly flights leaving on this day.