£391 Cheap Flights from Idaho Falls (IDA) to Chicago (ORD)

View £391 flight on Mon, 22 Sep 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Chicago O'Hare International Airport (ORD)

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Cheap Flights from Idaho Falls (IDA) to Chicago (ORD)

Prices were available within the past 7 days and start at £391 for one-way flights and £315 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
IDA
Idaho Falls
ORD
Chicago
£315 Return, found 5 days ago
£315
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Idaho Falls to Chicago, returning Wed, 24 Sep, priced at £315 found 5 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
IDA
Idaho Falls
ORD
Chicago
£333 Return, found 4 days ago
£333
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Idaho Falls to Chicago, returning Wed, 24 Sep, priced at £333 found 4 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
IDA
Idaho Falls
ORD
Chicago
£404 Return, found 5 days ago
£404
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Idaho Falls to Chicago, returning Wed, 24 Sep, priced at £404 found 5 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
IDA
Idaho Falls
ORD
Chicago
£424 Return, found 4 days ago
£424
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Idaho Falls to Chicago, returning Wed, 24 Sep, priced at £424 found 4 days ago
Alaska Airlines
Mon, 15 Sep - Mon, 22 Sep
IDA
Idaho Falls
ORD
Chicago
£433 Return, found 4 days ago
£433
Return
found 4 days ago
Select Alaska Airlines flight, departing Mon, 15 Sep from Idaho Falls to Chicago, returning Mon, 22 Sep, priced at £433 found 4 days ago
Alaska Airlines
Mon, 22 Sep - Mon, 29 Sep
IDA
Idaho Falls
ORD
Chicago
£446 Return, found 2 days ago
£446
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 22 Sep from Idaho Falls to Chicago, returning Mon, 29 Sep, priced at £446 found 2 days ago
Alaska Airlines
Mon, 15 Sep - Mon, 22 Sep
IDA
Idaho Falls
ORD
Chicago
£455 Return, found 6 days ago
£455
Return
found 6 days ago
Select Alaska Airlines flight, departing Mon, 15 Sep from Idaho Falls to Chicago, returning Mon, 22 Sep, priced at £455 found 6 days ago
Alaska Airlines
Fri, 12 Sep - Fri, 19 Sep
IDA
Idaho Falls
ORD
Chicago
£464 Return, found 4 days ago
£464
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 12 Sep from Idaho Falls to Chicago, returning Fri, 19 Sep, priced at £464 found 4 days ago
Alaska Airlines
Mon, 15 Sep - Mon, 22 Sep
IDA
Idaho Falls
ORD
Chicago
£474 Return, found 4 days ago
£474
Return
found 4 days ago
Select Alaska Airlines flight, departing Mon, 15 Sep from Idaho Falls to Chicago, returning Mon, 22 Sep, priced at £474 found 4 days ago
Alaska Airlines
Fri, 12 Sep - Fri, 19 Sep
IDA
Idaho Falls
ORD
Chicago
£476 Return, found 4 days ago
£476
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 12 Sep from Idaho Falls to Chicago, returning Fri, 19 Sep, priced at £476 found 4 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
IDA
Idaho Falls
ORD
Chicago
£483 Return, found 4 days ago
£483
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Idaho Falls to Chicago, returning Wed, 24 Sep, priced at £483 found 4 days ago
Alaska Airlines
Mon, 15 Sep - Mon, 22 Sep
IDA
Idaho Falls
ORD
Chicago
£487 Return, found 4 days ago
£487
Return
found 4 days ago
Select Alaska Airlines flight, departing Mon, 15 Sep from Idaho Falls to Chicago, returning Mon, 22 Sep, priced at £487 found 4 days ago
Alaska Airlines
Mon, 15 Sep - Mon, 22 Sep
IDA
Idaho Falls
ORD
Chicago
£491 Return, found 4 days ago
£491
Return
found 4 days ago
Select Alaska Airlines flight, departing Mon, 15 Sep from Idaho Falls to Chicago, returning Mon, 22 Sep, priced at £491 found 4 days ago
Alaska Airlines
Fri, 12 Sep - Fri, 19 Sep
IDA
Idaho Falls
ORD
Chicago
£499 Return, found 5 days ago
£499
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 12 Sep from Idaho Falls to Chicago, returning Fri, 19 Sep, priced at £499 found 5 days ago

Find the cheapest month to fly from Idaho Falls (IDA) to Chicago (ORD)

September is typically the cheapest month to fly

From £179 - £693 per traveller.

Graph displaying average flight prices per month

Flight from Idaho Falls to Chicago route information
Origin airport
Idaho Falls Regional
Destination airport
O'Hare Intl.
Return price
£315
Distance
1961 km
Average flight time
3 hours 12 mins

Compare flights from Idaho Falls to Chicago easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Idaho Falls to Chicago. Operating between them 1 flights per day, 20 airlines cover the route. And American 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 Idaho Falls Regional 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 Idaho Falls Regional (IDA) to O'Hare Intl. (ORD)

The easiest way to view the best deals on flights from Idaho Falls 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 Idaho Falls Regional to O'Hare Intl. start at just £315 and range up to £566.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Idaho Falls 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 Idaho Falls to Chicago flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Idaho Falls Regional 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 Idaho Falls Regional Airport to ORD?
Based on airfares listed within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Idaho Falls Regional Airport and ORD start from £315. Book now to get the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Idaho Falls Regional Airport (IDA) to O'Hare Intl. Airport (ORD)?
The majority of flights can be cancelled online, but whether you incur a fee all comes down to your airline. If you do have to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from IDA 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 Idaho Falls Regional Airport (IDA) to O'Hare Intl. Airport (ORD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Idaho Falls Regional Airport (IDA) to O'Hare Intl. Airport (ORD)?
The flight distance from Idaho Falls Regional Airport to ORD is 2,000 kilometres. Bring a drink, a snack and a few good podcasts. Keep yourself entertained and the hours will zip by.
Which airlines fly direct from Idaho Falls Regional Airport to O'Hare Intl. Airport (ORD)?
If you want to fly straight from Idaho Falls Regional Airport to ORD, you'll have to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly on this route.
Are Idaho Falls Regional Airport to O'Hare Intl. Airport (ORD) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally score a bargain, with some of the cheapest airfares from IDA to O'Hare Intl. Airport (ORD) surfacing a few weeks prior to the departure date. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline releases prices that far in advance.

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