Cheap flights from Boise to Chicago

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Flight deals from Boise to Chicago

Looking for a cheap last-minute deal or the best return flight from Boise Airport to Chicago? If you want to travel next month, return fares start from $355. Find the lowest prices on one-way and return tickets right here.

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 September.

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$158
Cheapest month to flySeptember
Average flight time3 hrs, 31 mins
Most popular airlineAmerican Airlines
Average flights per week86

Finding cheap flights from Boise to Chicago: Frequently asked questions

There are 3 airports in Chicago: Chicago Midway, Chicago O'Hare International and Chicago Rockford.
The best price we found for a return flight from Boise to Chicago is $326. 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 30 minutes is the average flight time from Boise to Chicago.
American Airlines, United and Lufthansa fly direct from Boise to Chicago.
As of July 2026, there are 172 flights per week flying from Boise to Chicago.
The cheapest month to fly from Boise to Chicago is usually October.
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 centre of Chicago. We've found flights into this airport from $326.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Chicago on Thursday, 1 October 2026.
Yes – the average flight time is 3 hours and 30 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 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.

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.

In July, 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.
Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to Chicago.

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

  • Around 4 hours 5 minutes is how long you'll be travelling 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 travelling 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 taxi, you'll cover the 6 kilometres 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

  • $158 is currently the lowest price for a one-way Boise Air Terminal to Chicago flight. A return plane ticket starts from $326. 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 kilometres. It takes around 30 minutes to get to the centre driving.

  • Travelling to the centre 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 centre in around 25 minutes by car. Central Chicago is roughly 16 kilometres from Chicago Midway International Airport (MDW).

  • If you choose to travel on public transport, you'll reach the centre 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 kilometres from the centre of Chicago. It'll take you about 1 hour 40 minutes to get to the city centre by ride-share or taxi 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

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 kilometres 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 Theatre, you'll have a full itinerary ahead.

  • Indianapolis is another sought-after destination in the United States and is around 257 kilometres southeast of Chicago. No trip is complete without visiting Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.