Cheap flights from San Francisco to Boise from $99

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 $236. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $331. 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 morning. Our users have found flights to Boise in the morning for as low as $285. At noon is when there is more demand to fly to Boise, so prices are often more expensive at around $292 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 $276 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 $194 on momondo.

You could potentially save up to 20% on your flight if you consider stops on a San Francisco to Boise flight.

As of May 2026, prices for San Francisco to Boise flights are approximately 32% cheaper when compared to flights at the same time last year.

Alaska Airlines, Delta, and Southwest 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 48% 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 May 2026, there are 14 flights per day flying from San Francisco to Boise. The most common time of day flights depart is 4:00PM, with 72% of flights taking off in the afternoon.

104 flights are operational weekly from San Francisco to Boise as of May 2026. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.