CHI - IDA

$135 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 2/27. 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, 0 bags

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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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$335
American Airlines
Tue 6/30Tue 7/7
ORD - IDA • Non-stop
Cheapest one-way
$135
Alaska Airlines
Fri 2/27
ORD - IDA • 1 stop
Top airlines
American Airlines
Cheapest • from $335 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ORD
-
IDA
Cheapest
ORD
-
IDA
Most popular
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

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, Jun 30 - Tue, Jul 7
American Airlines Logo
10:36 am - 1:13 pm
ORD
-
IDA
3h 37mnonstop
American Airlines Logo
12:41 pm - 5:10 pm
IDA
-
ORD
3h 29mnonstop
$335American Airlines
Mon, Mar 2 - Thu, Mar 12
Delta Logo
1:20 pm - 5:49 pm
ORD
-
IDA
5h 29m
1 stop
Delta Logo
1:10 pm - 9:34 pm
IDA
-
ORD
7h 24m
1 stop
$345Delta
Fri, May 8 - Mon, May 11
Multiple Airlines Logo
6:00 am - 3:27 pm
ORD
-
IDA
10h 27m
2 stops
Multiple Airlines Logo
10:21 pm - 6:47 am
IDA
-
ORD
7h 26m
1 stop
$375Multiple Airlines
Mon, Mar 2 - Wed, Mar 11
Delta Logo
1:20 pm - 5:49 pm
ORD
-
IDA
5h 29m
1 stop
Delta Logo
1:10 pm - 9:34 pm
IDA
-
ORD
7h 24m
1 stop
$385Delta
Sat, Feb 28 - Sun, Mar 29
Alaska Airlines Logo
5:29 pm - 4:43 pm
ORD
-
IDA
24h 14m
1 stop
Alaska Airlines Logo
5:59 pm - 6:39 am
IDA
-
ORD
11h 40m
1 stop
$390Alaska Airlines
Fri, Apr 17 - Sun, Apr 19
United Airlines Logo
7:00 am - 1:24 pm
ORD
-
IDA
7h 24m
1 stop
United Airlines Logo
2:30 pm - 11:28 pm
IDA
-
ORD
7h 58m
1 stop
$403United Airlines
Mon, Mar 2 - Wed, Mar 11
United Airlines Logo
8:40 am - 1:30 pm
ORD
-
IDA
5h 50m
1 stop
United Airlines Logo
5:30 pm - 11:52 pm
IDA
-
ORD
5h 22m
1 stop
$404United Airlines
Fri, Feb 27 - Sun, Mar 1
Alaska Airlines Logo
3:54 pm - 11:36 pm
ORD
-
IDA
8h 42m
1 stop
Alaska Airlines Logo
5:20 pm - 11:56 pm
IDA
-
ORD
29h 36m
1 stop
$406Alaska Airlines
Mon, Mar 2 - Thu, Mar 12
Alaska Airlines Logo
3:54 pm - 11:36 pm
ORD
-
IDA
8h 42m
1 stop
Alaska Airlines Logo
8:00 am - 1:11 pm
IDA
-
ORD
28h 11m
2 stops
$412Alaska Airlines
Fri, May 8 - Mon, May 11
Alaska Airlines Logo
8:00 am - 3:29 pm
ORD
-
IDA
8h 29m
1 stop
Alaska Airlines Logo
4:06 pm - 11:59 pm
IDA
-
ORD
6h 53m
1 stop
$431Alaska Airlines
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Chicago to Idaho Falls costs $561 on the route between Chicago O'Hare Intl Airport (ORD) and Idaho Falls (IDA). It is also the most popular route.

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 Friday and more expensive on a Wednesday. On your return trip to Chicago, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

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 $561, prices are generally cheapest when you fly direct.

Find deals

Good to know

Low seasonApril
Cheapest flight$135
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 12% increase in price.
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 $135 for a one-way ticket and $335 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?

    oneworld is the only airline alliance operating flights between Chicago and Idaho Falls.

  • 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.

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 9209 reviews
6.6Food
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

8.0 ExcellentAnonymous, Jan 2026
ORD - TPA
Read more United Airlines reviews

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

I liked the snacks and the flight attendants were friendly.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Always wish for more healthy, gluten free options. We have to bring our own.

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

Information on your arrival and departure airports

Idaho Falls (IDA)