Cheap flights from Boise to Chicago from $128

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Boise averaging around $364.

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $509. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Boise because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $752.

Flying to Chicago O'Hare Intl Airport from Boise in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $435 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $656. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $417 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Boise for as low as $313 on momondo.

There are 4 cabin classes available to choose from on Boise to Chicago O'Hare Intl Airport 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 10% on your flight if you consider stops on a Boise to Chicago O'Hare Intl Airport flight.

As of October 2026, prices for Boise to Chicago O'Hare Intl Airport flights are approximately 27% more expensive when compared to flights at the same time last year.

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

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Boise according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

As of October 2026, there are 8 flights per day flying from Boise to Chicago O'Hare Intl Airport. The most common time of day flights depart is 12:00PM, with 68% of flights taking off in the afternoon.

As of October 2026, there are 56 flights per week flying from Boise to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.