IDA

$123 Find Cheap Flights from Illinois 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 to Idaho Falls departing on 2/12. 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

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Everything you should know

Cheapest round-trip
$312
Hawaiian Airlines
Thu 1/22Wed 1/28
ORD - IDA • 1 stop
Cheapest one-way
$123
Multiple Airlines
Thu 2/12
ORD - IDA • 1 stop
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We hope you love your trip to Idaho Falls!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Idaho Falls

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois 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 Illinois to Idaho Falls

Thu, Jan 22 - Wed, Jan 28
Hawaiian Airlines Logo
3:35 pm - 10:59 pm
ORD
-
IDA
8h 24m1 stop
Hawaiian Airlines Logo
9:00 am - 5:10 pm
IDA
-
ORD
7h 10m1 stop
$312Hawaiian Airlines
Fri, Jan 30 - Sat, Jan 31
Alaska Airlines Logo
2:50 pm - 10:59 pm
STL
-
IDA
9h 09m1 stop
Alaska Airlines Logo
6:58 pm - 1:54 pm
IDA
-
STL
17h 56m1 stop
$342Alaska Airlines
Thu, Jan 22 - Wed, Jan 28
Alaska Airlines Logo
9:00 am - 10:59 pm
ORD
-
IDA
14h 59m2 stops
Alaska Airlines Logo
9:00 am - 5:10 pm
IDA
-
ORD
7h 10m1 stop
$353Alaska Airlines
Mon, Jan 26 - Thu, Jan 29
Alaska Airlines Logo
2:50 pm - 10:59 pm
STL
-
IDA
9h 09m1 stop
Alaska Airlines Logo
6:58 pm - 1:54 pm
IDA
-
STL
17h 56m1 stop
$353Alaska Airlines
Wed, Feb 4 - Sat, Feb 7
Alaska Airlines Logo
2:50 pm - 10:59 pm
STL
-
IDA
9h 09m1 stop
Alaska Airlines Logo
6:58 pm - 1:54 pm
IDA
-
STL
17h 56m1 stop
$357Alaska Airlines
Sat, Jan 10 - Tue, Jan 13
United Airlines Logo
8:46 am - 1:30 pm
MLI
-
IDA
5h 44m1 stop
United Airlines Logo
2:40 pm - 8:34 pm
IDA
-
MLI
4h 54m1 stop
$359United Airlines
Mon, Mar 9 - Fri, Mar 13
Delta Logo
6:04 pm - 10:20 pm
STL
-
IDA
5h 16m1 stop
Delta Logo
6:59 pm - 8:52 am
IDA
-
STL
12h 53m2 stops
$393Delta
Sat, Jan 10 - Tue, Jan 13
United Airlines Logo
8:46 am - 3:31 pm
MLI
-
IDA
7h 45m1 stop
United Airlines Logo
10:51 am - 9:36 pm
IDA
-
MLI
9h 45m2 stops
$400United Airlines
Mon, Mar 9 - Fri, Mar 13
Delta Logo
3:25 pm - 10:20 pm
STL
-
IDA
7h 55m2 stops
Delta Logo
6:59 pm - 8:52 am
IDA
-
STL
12h 53m2 stops
$425Delta
Mon, Jan 12 - Mon, Jan 19
American Airlines Logo
5:05 am - 1:37 pm
ORD
-
IDA
9h 32m1 stop
American Airlines Logo
2:07 pm - 11:55 am
IDA
-
ORD
20h 48m1 stop
$544American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$123
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Chicago O'Hare Airport to Idaho Falls

FAQs for booking flights from Illinois to Idaho Falls

  • How does KAYAK find such low prices on flights from Illinois 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 Illinois to Idaho Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Illinois 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 Illinois 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 Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois 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 Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Idaho Falls

Information on the airport you'll fly into in Idaho Falls

Idaho Falls (IDA)