Cheap Flights from Chicago (CHIA) to Boise (BOI)

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Flight deals from Chicago to Boise

Looking for a cheap last-minute deal or the best return flight from Chicago to Boise? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Boise

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Boise flights are currently cheapest in July.

Direct flights from Chicago to Boise

Chicago to Boise: Alternative routes

Compare routes from Chicago to Boise below. You may find an airport to fly into that's cheaper, faster, or easier than Boise.

Chicago to Boise: Flight information

The things to know before you go.
Cheapest flight found$242
Cheapest month to flyJuly
Average flight time3 hrs, 52 mins
Most popular airlineAmerican Airlines
Average flights per week150

Finding cheap flights from Chicago to Boise: Frequently asked questions

The best price we found for a return flight from Chicago to Boise is $242. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 51 minutes is the average flight time from Chicago to Boise.
American Airlines, Envoy Air and United fly direct from Chicago to Boise.
As of May 2025, there are 75 flights per week flying from Chicago to Boise.
The cheapest month to fly from Chicago to Boise is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Boise Airport on Friday, 4 July 2025.
Yes – the average flight time is 3 hours and 51 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boise but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Boise is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Boise is Southwest Airlines .

Flying from Chicago to Boise Air Terminal (Gowen Field) (BOI): what you need to know

  • Countless great adventures start at one of Chicago's main airports, O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW). Check out your options for booking a flight from Chicago to Boise Air Terminal (Gowen Field) (BOI) setting off from either of these.

  • Boise is 1 hour behind Chicago. Boise Air Terminal (Gowen Field) is located in Boise, which operates on the UTC-6 timezone.

  • Your flight from Chicago to BOI won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Getting on a plane during a peak month like August? High seasons (like summer, Christmas/New Year and spring break) can add another hour at check-in and security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

Airports in Chicago

O'Hare International Airport (ORD)

Chicago Midway International Airport (MDW)

  • Chicago Midway International Airport (MDW) operates direct flights from Chicago to Boise Air Terminal (Gowen Field) (BOI).

  • United offers direct flights from Chicago to BOI departing from MDW. Book your preferred aisle seat and arrive at your destination in a single hop.

  • You can arrive at MDW from the centre of Chicago in approximately 21 minutes by car (depending on traffic conditions). The journey on public transport will take roughly 46 minutes to travel the 19 kilometres or so.

  • Want to spoil yourself with an extra night away before your flight from Chicago to BOI? Unwind in a hotel near Chicago Midway International Airport before your break officially begins. Check out these accommodation options:

About Boise Air Terminal (Gowen Field) Airport (BOI)

Getting from Boise Air Terminal (Gowen Field) Airport (BOI) to central Boise

  • From Boise Air Terminal (Gowen Field) Airport, Boise is approximately 18 kilometres away. It takes around 18 minutes to reach the centre driving.

  • If you're using public transport, expect a journey of about 1 hour and 37 minutes.

How to find the cheapest flights from Chicago to Boise Air Terminal (Gowen Field) Airport (BOI)

  • Lock in a one-way ticket from Chicago to Boise Air Terminal (Gowen Field) Airport from $120 or travel return from just $242. Fares listed are subject to change and may differ when you make your booking.

  • It's often best to book ahead of time if you're hoping to get flight tickets from Chicago to BOI. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • Use the 'Whole month' tool and compare the prices of tickets from Chicago to Boise Air Terminal (Gowen Field) Airport across the entire month. We've made the lowest fares green, so you can easily choose a flight that fits your budget.

  • Set up a Price Alert for flight tickets from Chicago to BOI. There's no need to check back in every day to see if fares have dropped. We'll notify you as soon as there's a change in price.

  • Customise your trip by applying filters. Adjust the duration, number of stops, and departure and arrival times to find the right flight from Chicago to Boise Air Terminal (Gowen Field) Airport. You can also sort the results to see the 'Best,' 'Fastest' or 'Cheapest' options first.

The best time to fly from Chicago to Boise Air Terminal (Gowen Field) Airport (BOI)

  • July is the busiest month to board a flight from Chicago to Boise Air Terminal (Gowen Field) Airport while May is the quietest. To work out the ideal time to go to Boise, consider your preferred travel pace and style.

  • Before you book a flight from Chicago to BOI, think about the kind of weather you enjoy. July is the warmest month in Boise, with the temperature ranging from 15ºC to 35ºC.

  • January sees average temperatures of between -11ºC and 5ºC. Look for cheap flights from Chicago to Boise Air Terminal (Gowen Field) Airport sometime then if you like travelling in cooler conditions.

More about Boise

  • After locking in your flight from Chicago to Boise Air Terminal (Gowen Field) Airport, think about where you'll stay in this city. Make one of these accommodation options your base for exploring Boise:

  • One of the best ways to experience Boise is to visit its top attractions. Some highlights include Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise.

Complete your Boise trip with a car rental

  • We use the same magic that helped you find your cheap flight from Chicago to Boise Air Terminal (Gowen Field) Airport to track down your perfect ride. Check out our car rentals in Boise and easily compare your options. Plus you'll find all the info you need to know, from the most popular car type to the average daily price.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.