£80 Cheap Flights from Boise (BOI) to Chicago (ORD)

View £80 flight on Tue, 16 Dec 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Chicago O'Hare International Airport (ORD)

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

Prices were available within the past 7 days and start at £80 for one-way flights and £173 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
BOI
Boise
ORD
Chicago
£173 Return, found 4 days ago
£173
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Boise to Chicago, returning Wed, 24 Sep, priced at £173 found 4 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
BOI
Boise
ORD
Chicago
£181 Return, found 4 days ago
£181
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Boise to Chicago, returning Wed, 24 Sep, priced at £181 found 4 days ago
Alaska Airlines
Sat, 20 Sep - Sat, 27 Sep
BOI
Boise
ORD
Chicago
£182 Return, found 6 days ago
£182
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 20 Sep from Boise to Chicago, returning Sat, 27 Sep, priced at £182 found 6 days ago
Alaska Airlines
Sat, 20 Sep - Sat, 27 Sep
BOI
Boise
ORD
Chicago
£203 Return, found 6 days ago
£203
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 20 Sep from Boise to Chicago, returning Sat, 27 Sep, priced at £203 found 6 days ago
Alaska Airlines
Sat, 20 Sep - Sat, 27 Sep
BOI
Boise
ORD
Chicago
£211 Return, found 6 days ago
£211
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 20 Sep from Boise to Chicago, returning Sat, 27 Sep, priced at £211 found 6 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
BOI
Boise
ORD
Chicago
£214 Return, found 4 days ago
£214
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Boise to Chicago, returning Wed, 24 Sep, priced at £214 found 4 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
BOI
Boise
ORD
Chicago
£216 Return, found 6 days ago
£216
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Boise to Chicago, returning Wed, 24 Sep, priced at £216 found 6 days ago
Alaska Airlines
Sat, 20 Sep - Sat, 27 Sep
BOI
Boise
ORD
Chicago
£217 Return, found 6 days ago
£217
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 20 Sep from Boise to Chicago, returning Sat, 27 Sep, priced at £217 found 6 days ago
Alaska Airlines
Sat, 11 Oct - Sat, 18 Oct
BOI
Boise
ORD
Chicago
£224 Return, found 1 day ago
£224
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 11 Oct from Boise to Chicago, returning Sat, 18 Oct, priced at £224 found 1 day ago
Alaska Airlines
Sat, 11 Oct - Sat, 18 Oct
BOI
Boise
ORD
Chicago
£226 Return, found 1 day ago
£226
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 11 Oct from Boise to Chicago, returning Sat, 18 Oct, priced at £226 found 1 day ago

Find the cheapest month to fly from Boise (BOI) to Chicago (ORD)

August is typically the cheapest month to fly

From £102 - £197 per traveller.

Graph displaying average flight prices per month

Flight from Boise to Chicago route information
Origin airport
Boise
Destination airport
O'Hare Intl.
Airlines serving
Alaska Airlines
Return price
£173
Distance
2293 km
Average flight time
4 hours 38 mins

Compare flights from Boise to Chicago easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boise to Chicago. Operating between them 9 flights per day, 20 airlines cover the route. And American Airlines, Qatar Airways, Air Canada, Emirates, Lufthansa, United Airlines fly direct, getting you to O'Hare Intl. in just 5hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Boise to O'Hare Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Boise (BOI) to O'Hare Intl. (ORD)

The easiest way to view the best deals on flights from Boise to Chicago today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Boise to O'Hare Intl. start at just £173 and range up to £269.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boise and Chicago
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boise to Chicago flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Boise to O'Hare Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from BOI to O'Hare Intl. Airport (ORD)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey between Boise Airport and ORD was £173. Cheap fares don't stick around for long, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Boise Airport to ORD?
The majority of flights can be cancelled online, but each airline has a different set of terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Boise Airport to ORD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Boise Airport (BOI) to ORD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Boise Airport to O'Hare Intl. Airport (ORD)?
Around 2,300 kilometres separates Boise and Chicago, so pack something to help you fill in a couple of hours. That latest bestseller you haven't finished will be ideal.
Which airlines fly direct from Boise Airport to O'Hare Airport?
United Airlines (UA) is a top choice. It operates 60 flights from Boise Airport to O'Hare Intl. Airport (ORD) each month. Operating 13 flights every month along this route, Alaska Airlines (AS) is another fantastic option.
Are BOI to O'Hare Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab a great last-minute deal from BOI to ORD, but there's no guarantee. As many airlines publish prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals often, so you can feel confident knowing you're always seeing the latest offers.

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