Cheap flights from Seattle to Boise from $94

The month of January is, on average, the cheapest month to fly to Boise from Seattle, with most prices found around $99. If you aren’t able to travel during the month of January, then book flights to Boise from Seattle during April instead. Flights to Boise in April, while not as cheap as those in January, still average around $158.

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 $198. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $336. 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 Seattle to Boise flights are usually those with departure times at noon. Our users have found flights to Boise at noon for as low as $221. In the afternoon is when there is more demand to fly to Boise, so prices are often more expensive at around $241 per ticket.

Fly from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld for the best Seattle/Tacoma Intl - Boise Air Term. Gowen Fld flight prices

You are more likely to see cheaper flights to Boise from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from Seattle for as low as $165 on momondo.

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

You could potentially save up to 67% on your flight if you consider stops on a Seattle to Boise flight.

As of June 2026, prices for Seattle to Boise flights are approximately 44% more expensive when compared to flights at the same time last year.

United Airlines, Southwest, and Frontier are the most popular carriers operating from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Boise from Seattle according to our data. Alaska Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Boise. Keep in mind that there are 3 different airlines that fly to Boise on a routine basis, so you have a few additional options to choose from.

32 flights are operational daily from Seattle to Boise as of June 2026. The most popular departure time for this route is 7:00PM, with 48% of flights per day taking off in the afternoon.

As of June 2026, 225 flights take off from Seattle and land in Boise each week. The most common flight departure day for this route is Thu, with 20% of weekly flights taking off on this day.