Cheap Flights from Chicago to Idaho Falls

Compare Chicago to Idaho Falls flight deals

Find the cheapest month or even day of the year to fly to Idaho Falls

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Flight deals from Chicago to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Chicago to Idaho Falls Airport? If you want to travel next month, return fares start from R 4,721. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Idaho Falls

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

Direct flights from Chicago to Idaho Falls

Chicago to Idaho Falls: Alternative routes

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

Chicago to Idaho Falls: Flight information

The things to know before you go.
Cheapest flight foundR 2,997
Cheapest month to flyAugust
Average flight time3 hrs, 40 mins
Most popular airlineSkyWest Airlines
Average flights per week17

Finding cheap flights from Chicago to Idaho Falls: Frequently asked questions

The best price we found for a return flight from Chicago to Idaho Falls is R 4,675. 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 40 minutes is the average flight time from Chicago to Idaho Falls.
SkyWest Airlines, American Airlines and United fly direct from Chicago to Idaho Falls.
As of July 2026, there are 17 flights per week flying from Chicago to Idaho Falls.
The cheapest month to fly from Chicago to Idaho Falls is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Idaho Falls Airport on Monday, 17 August 2026.
Yes – the average flight time is 3 hours and 40 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 Idaho Falls 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 Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Chicago to Idaho Falls Regional Airport (IDA): What you need to know

  • Chicago's main airport is Chicago O'Hare International Airport (ORD). Explore your options for departing from this base when booking flights from Chicago to Idaho Falls Regional Airport (IDA).

  • Expect to be in the air for 3 hours 30 minutes. On average, that's the time it takes for a direct Chicago to Idaho Falls Regional Airport flight.

  • Idaho Falls Regional Airport is located in Idaho Falls. The city is in the UTC-7 timezone and is one hour behind Chicago.

  • The most popular route is Chicago O'Hare International Airport (ORD) to Idaho Falls Regional Airport (IDA). You can pick from 3 direct services each week.

  • Get to the airport on time so you don't miss your flight from Chicago to IDA. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • Getting away during a peak month like July? Popular seasons (like Thanksgiving, Christmas and spring break) can easily add another hour at check-in and security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before domestic departures.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • Reach your destination without the detour from Chicago O'Hare International Airport (ORD). Nonstop flights from Chicago to Idaho Falls Regional Airport (IDA) operate from here.

  • American Airlines is a well-known airline that offers direct flights from Chicago to Idaho Falls Regional Airport taking off from ORD.

  • Most travellers choose to book seats with American Airlines between ORD and IDA.

  • Among carriers on this route, American Airlines is the most consistent for on-time landings.

  • Located around 27 kilometres from central Chicago, ORD can be reached in about 30 minutes by car (depending on traffic). The journey on public transport takes roughly 45 minutes.

  • Searching for a comfortable hotel close to Chicago O'Hare International Airport? If you've booked an early flight from Chicago to Idaho Falls Regional Airport, these stays will have you sleeping just around the corner from the terminal:

  • Of all flights leaving Chicago O'Hare International Airport, 70% touch down on time at their destination.

  • The address for ORD is 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • You can get to MDW from central Chicago in approximately 25 minutes by car (depending on traffic conditions). The ride by public transport will take roughly 30 minutes to travel the 16 kilometres or so.

  • Want to treat yourself to an extra night away before your Chicago to IDA flight? Check in to a hotel near Chicago Midway International Airport before your trip officially begins. These stays are expecting you:

  • 76% of flights taking off from Chicago Midway International Airport meet their expected arrival time.

  • The street address for MDW is 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • The trip to RFD from the centre of Chicago is around 2 hours by public transport. If you're going by car, it'll take you roughly 1 hour 40 minutes to cover the 145 kilometres or so.

  • Stay in bed a little longer and still make your Chicago to Idaho Falls Regional Airport flight with plenty of time to spare. These accommodation options near Chicago Rockford International Airport make getting to the terminal a breeze if you're jetting off early:

  • The on-time performance record of RFD is 71%. In other words, that's how often flights departing this airport reach their final stop as planned.

  • The street address of Chicago Rockford International Airport is 2 Airport Cir.

About Idaho Falls Regional Airport (IDA)

Getting from Idaho Falls Regional Airport (IDA) to central Idaho Falls

  • Central Idaho Falls is around 8 kilometres from Idaho Falls Regional Airport and takes about 10 minutes to reach by car. Explore your options for getting into the city, whether that's with a car hire, taxi or ride-share.

  • Travelling by public transport will take you around 30 minutes.

How to find the cheapest flights from Chicago to Idaho Falls Regional Airport (IDA)

  • R 2,997 is the lowest price for a one-way ticket from Chicago to Idaho Falls Regional Airport. A return flight starts at R 4,721. These prices may change based on availability and demand.

  • To pick up cheap flights from Chicago to IDA, book in advance. Airlines usually offer the most competitive fares when flights first go on sale.

  • If you have some flexibility with your travel dates, use the 'Whole month' tool. It'll show you the cheapest price across the month when searching for your Chicago to Idaho Falls Regional Airport ticket.

  • Save time looking for cheap plane tickets from Chicago to IDA by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Hunt down a great price on a flight from Chicago to Idaho Falls Regional Airport with the help of the filters. Choose your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best.'

The best time to fly from Chicago to Idaho Falls Regional Airport (IDA)

  • December is the quietest month for flights from Chicago to Idaho Falls Regional Airport (IDA), while July is the busiest. Pick the best time to go to Idaho Falls based on whether you like a bustling atmosphere or a more laid-back vibe.

  • When booking your Chicago to IDA plane ticket, consider the kind of weather forecast you're hoping for. July is the warmest month in Idaho Falls, with temperatures ranging from 9ºC (48ºF) to 35ºC (95ºF).

  • Search for cheap tickets from Chicago to Idaho Falls Regional Airport in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -15ºC (5ºF) and 1ºC (34ºF).

More about Idaho Falls

  • Start your Idaho Falls trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from Chicago to Idaho Falls Regional Airport, check out our selection of hotels including:

  • Snake River Greenbelt and Idaho Falls River Walk are just two of the leading attractions to put on your Idaho Falls to-do list. Keep the adventure rolling by checking out East Idaho Aquarium.

Explore more of the United States

  • You've visited Idaho Falls, now it's time to discover more of the United States. Travel about 257 kilometres south to Ogden to tick off its top sights. From Snowbasin Resort to Dinosaur Park and Museum and Ogden Botanical Gardens, there's plenty to keep you on the go.

  • Next up? Set out for Layton. It's about 274 kilometres south of Idaho Falls and boasts highlights including SeaQuest Utah and Layton Utah Temple.

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