Cheap Flights from Boise ID to Chicago IL from $196

Compare Boise to Chicago flight deals

Find the cheapest month or even day of the year to fly to Chicago

Book the best Chicago fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Boise to Chicago

Looking for a cheap last-minute deal or the best round-trip flight from Boise Airport to Chicago? If you want to travel next month, round-trip fares start from $234. Find the lowest prices on one-way and round-trip tickets right here.

Chicago.$196 per passenger.Departing Mon, Oct 19, returning Wed, Oct 21.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Boise on Mon, Oct 19, arriving in Chicago O'Hare International.Inbound indirect flight with Frontier Airlines, departing from Chicago O'Hare International on Wed, Oct 21, arriving in Boise.Price includes taxes and charges.From $196, select.

Chicago.$234 per passenger.Departing Thu, Sep 10, returning Wed, Sep 16.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Boise on Thu, Sep 10, arriving in Chicago O'Hare International.Inbound indirect flight with Frontier Airlines, departing from Chicago O'Hare International on Wed, Sep 16, arriving in Boise.Price includes taxes and charges.From $234, select.

Chicago.$259 per passenger.Departing Mon, Nov 9, returning Tue, Nov 10.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Boise on Mon, Nov 9, arriving in Chicago Midway.Inbound indirect flight with Delta, departing from Chicago Midway on Tue, Nov 10, arriving in Boise.Price includes taxes and charges.From $259, select.

Chicago.$260 per passenger.Departing Wed, Oct 21, returning Wed, Oct 28.Round-trip flight with United.Outbound direct flight with United departing from Boise on Wed, Oct 21, arriving in Chicago O'Hare International.Inbound direct flight with United departing from Chicago O'Hare International on Wed, Oct 28, arriving in Boise.Price includes taxes and charges.From $260, select.

Chicago.$272 per passenger.Departing Thu, Sep 3, returning Wed, Sep 9.Round-trip flight with United.Outbound direct flight with United departing from Boise on Thu, Sep 3, arriving in Chicago O'Hare International.Inbound direct flight with United departing from Chicago O'Hare International on Wed, Sep 9, arriving in Boise.Price includes taxes and charges.From $272, select.

Chicago.$295 per passenger.Departing Mon, Jan 25, returning Wed, Jan 27.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Boise on Mon, Jan 25, arriving in Chicago O'Hare International.Inbound indirect flight with Alaska Airlines, departing from Chicago O'Hare International on Wed, Jan 27, arriving in Boise.Price includes taxes and charges.From $295, select.

Chicago.$315 per passenger.Departing Wed, Oct 28, returning Wed, Nov 4.Round-trip flight with United.Outbound direct flight with United departing from Boise on Wed, Oct 28, arriving in Chicago O'Hare International.Inbound direct flight with United departing from Chicago O'Hare International on Wed, Nov 4, arriving in Boise.Price includes taxes and charges.From $315, select.

Chicago.$315 per passenger.Departing Mon, Nov 2, returning Mon, Nov 9.Round-trip flight with United.Outbound direct flight with United departing from Boise on Mon, Nov 2, arriving in Chicago O'Hare International.Inbound direct flight with United departing from Chicago O'Hare International on Mon, Nov 9, arriving in Boise.Price includes taxes and charges.From $315, select.

Chicago.$325 per passenger.Departing Sat, Sep 26, returning Sat, Oct 3.Round-trip flight with United.Outbound indirect flight with United, departing from Boise on Sat, Sep 26, arriving in Chicago O'Hare International.Inbound indirect flight with United, departing from Chicago O'Hare International on Sat, Oct 3, arriving in Boise.Price includes taxes and charges.From $325, select.

Chicago.$335 per passenger.Departing Mon, Dec 7, returning Mon, Dec 14.Round-trip flight with United.Outbound indirect flight with United, departing from Boise on Mon, Dec 7, arriving in Chicago O'Hare International.Inbound indirect flight with United, departing from Chicago O'Hare International on Mon, Dec 14, arriving in Boise.Price includes taxes and charges.From $335, select.

Chicago.$339 per passenger.Departing Thu, Aug 27, returning Sat, Aug 29.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Boise on Thu, Aug 27, arriving in Chicago O'Hare International.Inbound indirect flight with Frontier Airlines, departing from Chicago O'Hare International on Sat, Aug 29, arriving in Boise.Price includes taxes and charges.From $339, select.

Chicago.$339 per passenger.Departing Tue, Aug 25, returning Wed, Sep 16.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Boise on Tue, Aug 25, arriving in Chicago O'Hare International.Inbound indirect flight with Alaska Airlines, departing from Chicago O'Hare International on Wed, Sep 16, arriving in Boise.Price includes taxes and charges.From $339, select.

Chicago.$353 per passenger.Departing Fri, Nov 27, returning Fri, Dec 4.Round-trip flight with United.Outbound indirect flight with United, departing from Boise on Fri, Nov 27, arriving in Chicago O'Hare International.Inbound indirect flight with United, departing from Chicago O'Hare International on Fri, Dec 4, arriving in Boise.Price includes taxes and charges.From $353, select.

Chicago.$368 per passenger.Departing Wed, Mar 31, returning Wed, Apr 14.Round-trip flight with United.Outbound indirect flight with United, departing from Boise on Wed, Mar 31, arriving in Chicago O'Hare International.Inbound indirect flight with United, departing from Chicago O'Hare International on Wed, Apr 14, arriving in Boise.Price includes taxes and charges.From $368, select.

Chicago.$408 per passenger.Departing Sun, Dec 20, returning Sun, Jan 3.Round-trip flight with United.Outbound direct flight with United departing from Boise on Sun, Dec 20, arriving in Chicago O'Hare International.Inbound direct flight with United departing from Chicago O'Hare International on Sun, Jan 3, arriving in Boise.Price includes taxes and charges.From $408, select.

Chicago.$436 per passenger.Departing Wed, Aug 26, returning Sat, Aug 29.Round-trip flight with United.Outbound direct flight with United departing from Boise on Wed, Aug 26, arriving in Chicago O'Hare International.Inbound direct flight with United departing from Chicago O'Hare International on Sat, Aug 29, arriving in Boise.Price includes taxes and charges.From $436, select.

Find the cheapest month to fly from Boise to Chicago

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

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Direct flights from Boise to Chicago

Alternative Boise to Chicago routes

Looking for the cheapest, fastest or easiest route from Boise to Chicago? You could fly into the following airports instead.

Boise to Chicago: Flight information

The things to know before you go.

Cheapest flight found	$196
Cheapest month to fly	October
Average flight time	3 hrs, 32 mins
Most popular airline	American Airlines
Average flights per week	101

Finding cheap flights from Boise to Chicago: Frequently asked questions

How many airports are there in Chicago?

There are 3 airports in Chicago: Chicago Midway, Chicago O'Hare International and Chicago Rockford.

How much are round-trip flights from Boise to Chicago?

The best price we found for a round-trip flight from Boise to Chicago is $196. 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.

How long does it take to fly from Boise to Chicago?

3 hours and 32 minutes is the average flight time from Boise to Chicago.

Which airlines fly direct from Boise to Chicago?

American Airlines, Alaska Airlines and United fly direct from Boise to Chicago.

How many flights are there a week from Boise to Chicago?

There are 101 flights per week flying from Boise to Chicago, as of August 2026.

When is the cheapest time to fly from Boise to Chicago?

The cheapest month to fly from Boise to Chicago is usually October.

What's the cheapest airport to fly to in Chicago?

If you're flying from Boise Airport, the cheapest airport near Chicago is Chicago O'Hare International – which is 25.5 km away from the center of Chicago. We've found flights to this airport from $196.

Which upcoming date is cheapest to fly from Boise Airport to Chicago on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Chicago on Monday, October 19, 2026.

Can I get a direct flight from Boise Airport to Chicago?

Yes – the average flight time is 3 hours and 32 minutes.

How can I get the best flight deal from Boise Airport to Chicago?

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 Chicago 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.

When is the best time to book flights to Chicago?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Chicago?

In August, the average temperature is usually around 22°C. July is typically the warmest month in Chicago, when it usually averages around 26°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is August.

Which is the cheapest airline to fly with from Boise Airport to Chicago?

Currently, Frontier Airlines and United offer the cheapest flight tickets to Chicago.

Traveling from Boise Air Terminal (BOI) to Chicago: what you need to know

Around 4 hours 5 minutes is how long you'll be traveling on a direct flight from Boise Air Terminal to Chicago.
The timezone in Chicago is UTC-6. The city is one hour ahead of Boise, where Boise Air Terminal is located.
Boise Air Terminal (BOI) to Chicago O'Hare International Airport (ORD) is the most traveled route, with 21 flights a week to pick from. If you prefer starting your day later, the last flight from BOI to ORD is with American Airlines at 13:20. Go for the first departure with United Airlines at 08:10 if you want to get on your way earlier.
For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your BOI to Chicago flight.
During popular months like July, it's a good idea to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead of international flights whenever you're traveling during peak periods in general.
Direct Boise Air Terminal to Chicago tickets are available for booking. Chicago O'Hare International Airport (ORD) is where you'll step off the plane.
Choose from a variety of airlines offering direct flights from Boise Air Terminal to Chicago. Get on board with any of these:
The journey from central Boise to BOI takes about 30 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 6 kilometers in 15 minutes or so, depending on traffic.
Want a leisurely start to your journey? Stay near BOI. Whether you're taking an early flight from Boise Air Terminal to Chicago or want to avoid feeling rushed, these hotels are just the thing:
Boise Air Terminal has a strong on-time record, reducing your chances of a delayed flight. Departures from BOI land on schedule 84% of the time.
BOI is located at 3201 Airport Way.

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

$120 is currently the lowest price for a one-way Boise Air Terminal to Chicago flight. A return plane ticket starts from $196. These prices may change depending on demand and availability.
Score cheap flights from BOI to Chicago by booking three months ahead. According to our research, that's the best time for finding a bargain.
August is the best month for nabbing an incredible deal on Boise Air Terminal to Chicago tickets. If you want to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.
Never miss a deal on cheap flights from BOI to Chicago by setting up a Price Alert. You'll receive an email or push notification on the app when a lower fare becomes available.
Choose your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Boise Air Terminal to Chicago by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Chicago

Chicago O'Hare International Airport (ORD)

The distance from Chicago O'Hare International Airport (ORD) to central Chicago is roughly 27 kilometers. It takes around 30 minutes to get to the center driving.
Traveling to the center by public transport typically takes 45 minutes.
Consider booking a hotel near ORD if you're coming in on a late flight from Boise Air Terminal to Chicago. Check in to one of these options and skip the long transfer:
To secure the lowest price, book your vehicle from Chicago O'Hare International Airport about four weeks ahead of your flight from BOI to Chicago.
ORD is located at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

Once your flight from Boise Air Terminal to Chicago has arrived, you can reach the city center in around 25 minutes by car. Central Chicago is roughly 16 kilometers from Chicago Midway International Airport (MDW).
If you choose to travel on public transport, you'll reach the center in 30 minutes or so.
Hang up the 'Do not disturb' sign and relax at a hotel close to MDW. Here are a few options where you can check in after your BOI to Chicago flight:
Call dibs on the best options. Booking your ride from MDW four weeks ahead of time often means better deals and a greater selection of vehicles.
The address for Chicago Midway International Airport is 5700 South Cicero.

Chicago Rockford International Airport (RFD)

Chicago Rockford International Airport (RFD) is around 145 kilometers from the center of Chicago. It'll take you about 1 hour 40 minutes to get to the city center by ride-share or cab after your flight from Boise Air Terminal to Chicago.
Public transport will take you there in about 2 hours.
Find a hotel near RFD and go from the runway to resting in a snap. Whether you're arriving on a late BOI to Chicago flight or just want an easier arrival, these stays offer a quick route to a good night's sleep:
Booking a couple of weeks in advance of your flight from Boise Air Terminal to Chicago is always smart. As well as better prices, you'll get a better selection of vehicle makes and models at RFD.
Chicago Rockford International Airport is located at 2 Airport Cir.

Best time to go to Chicago

January is the quietest month for flights from Boise Air Terminal to Chicago, while July is the busiest. Work out the best time to visit Chicago based on whether you prefer a bustling atmosphere or a more laid-back vibe.
Lock in a Boise Air Terminal to Chicago plane ticket with a departure in July if you want to visit the city during its warmest month. You can expect temperatures to range from 16ºC (61ºF) to 28ºC (82ºF).
Look for cheap tickets from BOI to Chicago in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 3ºC (37ºF) on average.

More about Chicago

Start your Chicago trip off on the right foot by choosing the perfect place to stay. After booking your flight from Boise Air Terminal to Chicago, browse our range of accommodation options including:
Art Institute of Chicago and Millennium Park are a couple of popular attractions to add to your Chicago to-do list. Keep the sightseeing going at Willis Tower.

Explore more of the United States

You've done Chicago, now it's time to explore other corners of the United States. Travel around 451 kilometers southeast to Columbus to check off its must-visit sights. From Franklin Park Conservatory and Botanical Gardens to Whetstone Park / Park of Roses and Ohio Theater, you'll have a full itinerary ahead.
Indianapolis is another sought-after destination in the United States and is around 257 kilometers southeast of Chicago. No trip is complete without visiting Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis.