Cheap flights from Colorado to Boise from $66

The month of December is, on average, the cheapest month to fly to Boise from Colorado, with most prices found around $29. If you aren’t able to travel during the month of December, then book flights to Boise from Colorado during February instead. Flights to Boise in February, while not as cheap as those in December, still average around $33.

Our data shows that Thursday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $179. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $328. 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 Colorado 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 $213. At noon is when there is more demand to fly to Boise, so prices are often more expensive at around $355 per ticket.

Fly from Denver Intl to Boise Air Term. Gowen Fld for the best Colorado - Boise Air Term. Gowen Fld flight prices

You are more likely to see cheaper flights to Boise from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $239 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from Colorado for as low as $167 on momondo.

Delta, Southwest, and Alaska Airlines are the most popular carriers operating from Colorado to Boise Air Term. Gowen Fld

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Boise from Colorado 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 4 different airlines that fly to Boise on a routine basis, so you have a few additional options to choose from.

The number of flights available between Colorado and Boise is 16 per day as of May 2026. The most frequent departure time is 7:00PM, with 44% of daily flights leaving in the evening.

112 flights are operational weekly from Colorado to Boise as of May 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.