Cheap flights from San Francisco to Boise from $91

The month of January is, on average, the cheapest month to fly to Boise from San Francisco, with most prices found around $226. If you aren’t able to travel during the month of January, then book flights to Boise from San Francisco during November instead. Flights to Boise in November, while not as cheap as those in January, still average around $227.

Our data shows that Saturday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $266. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $409. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.

Our data shows that the cheapest San Francisco to Boise flights are usually those with departure times in the evening. Our users have found flights to Boise in the evening for as low as $295. In the morning is when there is more demand to fly to Boise, so prices are often more expensive at around $355 per ticket.

Fly from San Francisco to Boise Air Term. Gowen Fld for the best San Francisco - Boise Air Term. Gowen Fld flight prices

You are more likely to see cheaper flights to Boise from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $312 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from San Francisco for as low as $222 on momondo.

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

Frontier, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco to Boise Air Term. Gowen Fld

United Airlines, Alaska Airlines and Southwest are the top three most popular airlines that fly to Boise from San Francisco according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Boise. Keep in mind that there are 5 different airlines that fly to Boise on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 13 flights per day flying from San Francisco to Boise. The most common time of day flights depart is 12:00PM, with 55% of flights taking off in the afternoon.

95 flights are operational weekly from San Francisco to Boise as of August 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.