Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Idaho Falls from $135

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Idaho Falls departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:53 pm - 9:00 am
ORD
-
IDA
16h 07m
2 stops
Multiple Airlines Logo
10:21 pm - 6:20 am
IDA
-
ORD
6h 59m
1 stop
$276Multiple Airlines
Sat, Apr 4 - Mon, Apr 13
Multiple Airlines Logo
3:35 pm - 9:00 am
ORD
-
IDA
18h 25m
1 stop
Multiple Airlines Logo
10:21 pm - 6:20 am
IDA
-
ORD
6h 59m
1 stop
$286Multiple Airlines
Sat, Apr 4 - Mon, Apr 13
Alaska Airlines Logo
3:09 pm - 10:39 pm
ORD
-
IDA
8h 30m
1 stop
Alaska Airlines Logo
4:03 pm - 11:59 pm
IDA
-
ORD
6h 56m
1 stop
$303Alaska Airlines
Sat, Aug 22 - Sat, Aug 29
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
$310American Airlines
Thu, Jul 16 - Wed, Jul 22
United Airlines Logo
5:00 am - 9:50 am
ORD
-
IDA
5h 50m
1 stop
United Airlines Logo
2:30 pm - 11:19 pm
IDA
-
ORD
7h 49m
1 stop
$316United Airlines
Sat, Jul 18 - Fri, Jul 24
United Airlines Logo
7:00 am - 1:24 pm
ORD
-
IDA
7h 24m
1 stop
United Airlines Logo
5:20 pm - 12:30 am
IDA
-
ORD
6h 10m
1 stop
$329United Airlines
Thu, Apr 2 - Tue, Apr 7
United Airlines Logo
5:00 am - 9:50 am
ORD
-
IDA
5h 50m
1 stop
United Airlines Logo
4:10 pm - 12:44 am
IDA
-
ORD
7h 34m
1 stop
$334United Airlines
Thu, Jul 16 - Wed, Jul 22
Alaska Airlines Logo
8:48 pm - 3:29 pm
ORD
-
IDA
19h 41m
1 stop
Alaska Airlines Logo
4:03 pm - 1:22 pm
IDA
-
ORD
20h 19m
1 stop
$337Alaska Airlines
Fri, May 8 - Fri, May 22
Delta Logo
9:20 am - 6:14 pm
MDW
-
IDA
9h 54m
2 stops
Delta Logo
6:10 am - 6:05 pm
IDA
-
MDW
10h 55m
2 stops
$520Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
9:20 am - 6:14 pm
MDW
-
IDA
9h 54m
2 stops
Delta Logo
6:10 am - 6:05 pm
IDA
-
MDW
10h 55m
2 stops
$529Delta
Sat, Aug 22 - Sat, Aug 29

Delta flights from Chicago to Idaho Falls

Our best Delta deals on Chicago to Idaho Falls flight tickets
Delta
Apr 17
ORD2:09 pmChicago O'Hare Intl
5h 08m
1 stop
IDA6:17 pmIdaho Falls Fanning Field
Apr 18
IDA1:09 pmIdaho Falls Fanning Field
7h 09m
1 stop
ORD9:18 pmChicago O'Hare Intl
$364
Delta
Mar 2
ORD1:20 pmChicago O'Hare Intl
5h 29m
1 stop
IDA5:49 pmIdaho Falls Fanning Field
Mar 9
IDA6:55 pmIdaho Falls Fanning Field
12h 35m
2 stops
ORD8:30 amChicago O'Hare Intl
$389
Delta
Mar 3
ORD6:30 amChicago O'Hare Intl
12h 19m
2 stops
IDA5:49 pmIdaho Falls Fanning Field
Mar 9
IDA6:55 pmIdaho Falls Fanning Field
14h 05m
2 stops
ORD10:00 amChicago O'Hare Intl
$394

United Airlines flights from Chicago to Idaho Falls

Our best United Airlines deals on Chicago to Idaho Falls flight tickets
United Airlines
Jul 18
ORD5:00 amChicago O'Hare Intl
5h 50m
1 stop
IDA9:50 amIdaho Falls Fanning Field
Jul 24
IDA2:30 pmIdaho Falls Fanning Field
7h 49m
1 stop
ORD11:19 pmChicago O'Hare Intl
$316
United Airlines
Apr 2
ORD7:00 amChicago O'Hare Intl
7h 24m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Apr 7
IDA5:20 pmIdaho Falls Fanning Field
6h 10m
1 stop
ORD12:30 amChicago O'Hare Intl
$329
United Airlines
Jul 16
ORD5:00 amChicago O'Hare Intl
5h 50m
1 stop
IDA9:50 amIdaho Falls Fanning Field
Jul 22
IDA4:10 pmIdaho Falls Fanning Field
7h 34m
1 stop
ORD12:44 amChicago O'Hare Intl
$334

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 26, 2026.
Use the filters below to find and compare flights from Chicago to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 4/4

5:53 pm-9:00 am

2 stops16h 07m

Idaho Falls Fanning Field

Mon 4/13

10:21 pm-6:20 am

1 stop6h 59m

$276

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 4/4

3:35 pm-9:00 am

1 stop18h 25m

Idaho Falls Fanning Field

Mon 4/13

10:21 pm-6:20 am

1 stop6h 59m

$286

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 8/22

3:09 pm-10:39 pm

1 stop8h 30m

Idaho Falls Fanning Field

Sat 8/29

4:03 pm-11:59 pm

1 stop6h 56m

$303

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 7/16

10:36 am-1:13 pm

Nonstop3h 37m

Idaho Falls Fanning Field

Wed 7/22

12:41 pm-5:10 pm

Nonstop3h 29m

$310

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 7/18

5:00 am-9:50 am

1 stop5h 50m

Idaho Falls Fanning Field

Fri 7/24

2:30 pm-11:19 pm

1 stop7h 49m

$316

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 4/2

7:00 am-1:24 pm

1 stop7h 24m

Idaho Falls Fanning Field

Tue 4/7

5:20 pm-12:30 am

1 stop6h 10m

$329

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 7/16

5:00 am-9:50 am

1 stop5h 50m

Idaho Falls Fanning Field

Wed 7/22

4:10 pm-12:44 am

1 stop7h 34m

$334

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 5/8

8:48 pm-3:29 pm

1 stop19h 41m

Idaho Falls Fanning Field

Fri 5/22

4:03 pm-1:22 pm

1 stop20h 19m

$337

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Sat 8/22

9:20 am-6:14 pm

2 stops9h 54m

Idaho Falls Fanning Field

Sat 8/29

6:10 am-6:05 pm

2 stops10h 55m

$520

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Sat 8/22

9:20 am-6:14 pm

2 stops9h 54m

Idaho Falls Fanning Field

Sat 8/29

6:10 am-6:05 pm

2 stops10h 55m

$529

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Chicago to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Friday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $323. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Wednesday is $441.

What is the cheapest Chicago to Idaho Falls Fanning Field flight route?

Fly from Chicago O'Hare Intl to Idaho Falls Fanning Field for the best Chicago - Idaho Falls Fanning Field flight prices

What cabin class options are available on Chicago to Idaho Falls Fanning Field flights?

There are 2 cabin classes available to choose from on Chicago to Idaho Falls Fanning Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago to Idaho Falls flights?

You could potentially save up to 39% on your flight if you consider stops on a Chicago to Idaho Falls flight.

When to book flights from Chicago to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Idaho Falls (CHI to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Idaho Falls

Best Price Found

$425

Fastest flight time

3h 15m

Direct flights

Every day

Airports in Idaho Falls

1 airport
The best flight deal from Chicago to Idaho Falls found on momondo in the last 72 hours is $425
The fastest flight from Chicago to Idaho Falls takes 3h 15m
Direct flights go from Chicago to Idaho Falls every day.
There is 1 airport in Idaho Falls. From Chicago there are direct flights to Idaho Falls Fanning Field (IDA).
Search flight deals

  • How far is Chicago to Idaho Falls Fanning Field by plane?

    Chicago and Idaho Falls Fanning Field are 1239.4 mi apart from one another. In terms of flight time, this usually takes a little over 3h 15m.

  • When did momondo last update prices for flights from Chicago to Idaho Falls Fanning Field Airport?

    Prices for flights from Chicago to Idaho Falls Fanning Field Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Chicago to Idaho Falls Fanning Field Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Idaho Falls?

  • What is the most popular airline from Chicago to Idaho Falls?

Best airlines flying from Chicago to Idaho Falls

Compare and see reviews for airlines that fly from Chicago to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $323Free CancellationRating
7.2
11,352 reviews
Search American Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Idaho Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho Falls from Chicago.

Can I find flights from Chicago to Idaho Falls with flexible booking policies on momondo?

Flights from Chicago to Idaho Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Idaho Falls?

Once all potential Chicago to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Idaho Falls right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Idaho Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Idaho Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 3/28
Sat 4/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States