CHI - IDA

$127 Find Cheap Flights from Chicago to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Idaho Falls departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Idaho Falls, as well as popular online travel agencies
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Cheap Flights from Chicago to Idaho Falls (CHI-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Idaho Falls

Tue, Sep 16 - Fri, Sep 19
Hawaiian Airlines Logo
8:00 am - 3:20 pmORD-IDA
8h 20m1 stop
Hawaiian Airlines Logo
3:57 pm - 11:59 pmIDA-ORD
7h 02m1 stop
$267Hawaiian Airlines
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Tue, Aug 26 - Sun, Aug 31
Delta Logo
6:25 pm - 10:27 pmORD-IDA
5h 02m1 stop
Delta Logo
6:00 am - 11:58 amIDA-ORD
4h 58m1 stop
$277Delta
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Tue, Aug 26 - Fri, Aug 29
Alaska Airlines Logo
8:00 am - 3:23 pmORD-IDA
8h 23m1 stop
Alaska Airlines Logo
4:03 pm - 7:03 amIDA-ORD
14h 00m1 stop
$308Alaska Airlines
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Sun, Aug 31 - Sat, Sep 6
Alaska Airlines Logo
6:20 am - 3:20 pmORD-IDA
10h 00m1 stop
Alaska Airlines Logo
6:13 am - 10:04 pmIDA-ORD
14h 51m1 stop
$311Alaska Airlines
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Thu, Jul 3 - Mon, Jul 7
Logo
10:15 pm - 11:44 amORD-IDA
14h 29m1 stop
Logo
6:12 pm - 10:50 amIDA-ORD
15h 38m1 stop
$351
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Thu, Jul 3 - Mon, Jul 7
Logo
10:15 pm - 6:33 pmORD-IDA
21h 18m3 stops
Logo
6:12 pm - 6:12 amIDA-ORD
11h 00m1 stop
$360
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Mon, Aug 11 - Tue, Aug 26
American Airlines Logo
10:19 am - 12:47 pmORD-IDA
3h 28mnonstop
American Airlines Logo
7:00 am - 2:47 pmIDA-ORD
6h 47m1 stop
$361American Airlines
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Tue, Aug 26 - Sun, Aug 31
American Airlines Logo
10:32 am - 1:00 pmORD-IDA
3h 28mnonstop
American Airlines Logo
12:46 pm - 4:58 pmIDA-ORD
3h 12mnonstop
$371American Airlines
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Tue, Jul 8 - Sat, Jul 12
United Airlines Logo
5:00 am - 9:44 amORD-IDA
5h 44m1 stop
United Airlines Logo
2:38 pm - 9:10 pmIDA-ORD
5h 32m1 stop
$391United Airlines
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Mon, Aug 11 - Tue, Aug 26
United Airlines Logo
1:04 pm - 5:22 pmORD-IDA
5h 18m1 stop
United Airlines Logo
4:00 pm - 11:59 pmIDA-ORD
6h 59m1 stop
$394United Airlines
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Useful Info

KAYAK's insights & trends for Chicago to Idaho Falls flights

Get data-powered insights and trends into flights from Chicago to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to Idaho Falls flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Chicago to Idaho Falls.

Our data shows that the cheapest route for a return flight from Chicago to Idaho Falls cost $371 and was between Chicago O'Hare Intl Airport (ORD) and Idaho Falls (IDA). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $371.

What’s the cheapest day of the week to fly from Chicago to Idaho Falls?

The average price of all round-trip flights from Chicago to Idaho Falls clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Idaho Falls on a Saturday and more expensive on a Wednesday. On your return trip to Chicago, you should consider flying back on a Tuesday, and avoid Wednesdays for better deals.

What is the cheapest month to fly from Chicago to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Idaho Falls is March, where tickets cost $299 (return) on average. On the other hand, the most expensive months are January and August, where the average cost of round-trip tickets is $832 and $814 respectively.

Can I save money by flying with a layover from Chicago to Idaho Falls?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $342, prices are generally cheapest when you fly direct.

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Good to know

Low seasonMarch
High seasonJuly
Cheapest flight$127
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Chicago O'Hare Airport to Idaho Falls

When to book flights from Chicago to Idaho Falls

Are your dates flexible? Find out the best times to travel from Chicago to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Idaho Falls

  • What is the cheapest flight from Chicago to Idaho Falls?

    In the last 3 days, the lowest price for a flight from Chicago to Idaho Falls was $127 for a one-way ticket and $267 for a round-trip.

  • Do I need a passport to fly between Chicago and Idaho Falls?

    A passport is not required to fly from Chicago to Idaho Falls.

  • Which airports will I be using when flying from Chicago to Idaho Falls?

    There are 2 airports in Chicago (Chicago Midway and Chicago O'Hare Intl.) and only 1 airport in Idaho Falls (Idaho Falls Fanning Field). The cheapest flights are generally found on the Chicago O'Hare Airport to Idaho Falls Fanning Field flight route.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Idaho Falls?

    Only American Airlines offers inflight Wi-Fi service on the Chicago to Idaho Falls flight route.

  • Which aircraft models fly most regularly from Chicago to Idaho Falls?

    The Canadair (Bombardier) Regional Jet 700 is the aircraft model that flies most regularly on the Chicago to Idaho Falls flight route.

  • Which airline alliances offer flights from Chicago to Idaho Falls?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Idaho Falls, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Chicago to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Chicago to Idaho Falls?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Idaho Falls Fanning Field.
Find which airlines fly direct from Chicago to Idaho Falls Fanning Field Airport, which days they fly and book direct flights.

Direct departures

Chicago to Idaho Falls Fanning Field

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Idaho Falls Fanning Field to Chicago

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top airline flying from Chicago to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8809 reviews
7.0Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

8.0 ExcellentStacie, Jun 2025ORD - ALB
Read more United Airlines reviews

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

Everything you need to know for your flight from Chicago to Idaho Falls

Information on your arrival and departure airports

Idaho Falls (IDA)

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