Cheap flights from Chicago O'Hare Intl Airport to Boise from $137

The month of April is, on average, the cheapest month to fly to Boise from Chicago O'Hare Intl Airport, with most prices found around $329. If you aren’t able to travel during the month of April, then book flights to Boise from Chicago O'Hare Intl Airport during November instead. Flights to Boise in November, while not as cheap as those in April, still average around $380.

Our data shows that Wednesday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $361. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $651. 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 Chicago O'Hare Intl Airport 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 $407. In the evening is when there is more demand to fly to Boise, so prices are often more expensive at around $570 per ticket.

Fly from Chicago O'Hare Intl to Boise Air Term. Gowen Fld for the best Chicago O'Hare Intl - Boise Air Term. Gowen Fld flight prices

You are more likely to see cheaper flights to Boise from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $460 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from Chicago O'Hare Intl Airport for as low as $336 on momondo.

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

Frontier and Alaska Airlines are the most popular carriers operating from Chicago O'Hare Intl to Boise Air Term. Gowen Fld

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Boise from Chicago O'Hare Intl Airport according to our data. American Airlines is the first choice among our users, with 53% 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.

6 flights are operational daily from Chicago O'Hare Intl Airport to Boise as of October 2026. The most popular departure time for this route is 7:00PM, with 50% of flights per day taking off at noon.

As of October 2026, there are 48 flights per week flying from Chicago O'Hare Intl Airport to Boise. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.