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Cheap flights from Chicago to Idaho Falls from $129

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 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Chicago to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Hawaiian Airlines Logo
8:00 am - 6:18 pm
ORD
-
IDA
11h 18m1 stop
Hawaiian Airlines Logo
8:00 am - 11:56 pm
IDA
-
ORD
14h 56m1 stop
$201Hawaiian Airlines
Sat, Feb 7 - Sat, Feb 14
Alaska Airlines Logo
3:35 pm - 10:59 pm
ORD
-
IDA
8h 24m1 stop
Alaska Airlines Logo
9:00 am - 12:01 pm
IDA
-
ORD
26h 01m1 stop
$259Alaska Airlines
Wed, Feb 4 - Wed, Feb 11
Alaska Airlines Logo
6:06 pm - 6:18 pm
ORD
-
IDA
25h 12m1 stop
Alaska Airlines Logo
5:20 pm - 11:56 pm
IDA
-
ORD
29h 36m1 stop
$289Alaska Airlines
Mon, Feb 9 - Fri, Feb 13
Alaska Airlines Logo
6:06 pm - 6:18 pm
ORD
-
IDA
25h 12m1 stop
Alaska Airlines Logo
6:58 pm - 2:38 pm
IDA
-
ORD
18h 40m1 stop
$311Alaska Airlines
Fri, Jan 30 - Mon, Feb 2
Alaska Airlines Logo
6:06 pm - 6:18 pm
ORD
-
IDA
25h 12m1 stop
Alaska Airlines Logo
5:20 pm - 12:01 pm
IDA
-
ORD
17h 41m1 stop
$315Alaska Airlines
Mon, Feb 9 - Thu, Feb 12
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
$318Alaska Airlines
Wed, Feb 4 - Wed, Feb 11
Alaska Airlines Logo
2:06 pm - 10:59 pm
ORD
-
IDA
9h 53m2 stops
Alaska Airlines Logo
6:58 pm - 2:38 pm
IDA
-
ORD
18h 40m1 stop
$319Alaska Airlines
Tue, Feb 3 - Tue, Feb 10
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
Tue, Jun 30 - Tue, Jul 7
Delta Logo
9:32 am - 5:51 pm
MDW
-
IDA
9h 19m2 stops
Delta Logo
6:35 pm - 9:53 am
IDA
-
MDW
14h 18m2 stops
$362Delta
Tue, Jan 27 - Tue, Feb 3
Delta Logo
1:51 pm - 10:57 pm
MDW
-
IDA
10h 06m2 stops
Delta Logo
6:35 pm - 9:54 am
IDA
-
MDW
14h 19m2 stops
$392Delta
Tue, Feb 3 - Wed, Feb 11

Alaska Airlines flights from Chicago to Idaho Falls

Our best Alaska Airlines deals on Chicago to Idaho Falls flight tickets
Alaska Airlines
Feb 4
ORD3:35 pmChicago O'Hare Intl
8h 24m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
Feb 11
IDA9:00 amIdaho Falls Fanning Field
26h 01m
1 stop
ORD12:01 pmChicago O'Hare Intl
$259
Alaska Airlines
Jan 30
ORD6:06 pmChicago O'Hare Intl
25h 12m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Feb 2
IDA6:58 pmIdaho Falls Fanning Field
18h 40m
1 stop
ORD2:38 pmChicago O'Hare Intl
$311
Alaska Airlines
Feb 9
ORD6:06 pmChicago O'Hare Intl
25h 12m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Feb 12
IDA5:20 pmIdaho Falls Fanning Field
17h 41m
1 stop
ORD12:01 pmChicago O'Hare Intl
$315

American Airlines flights from Chicago to Idaho Falls

Our best American Airlines deals on Chicago to Idaho Falls flight tickets
American Airlines
Jun 30
ORD10:36 amChicago O'Hare Intl
3h 37m
IDA1:13 pmIdaho Falls Fanning Field
Jul 7
IDA12:41 pmIdaho Falls Fanning Field
3h 29m
ORD5:10 pmChicago O'Hare Intl
$335
American Airlines
Jun 30
ORD10:36 amChicago O'Hare Intl
3h 37m
IDA1:13 pmIdaho Falls Fanning Field
Jul 7
IDA12:41 pmIdaho Falls Fanning Field
3h 29m
ORD5:10 pmChicago O'Hare Intl
$336
American Airlines
Jun 25
ORD10:36 amChicago O'Hare Intl
3h 37m
IDA1:13 pmIdaho Falls Fanning Field
Jun 29
IDA12:41 pmIdaho Falls Fanning Field
3h 29m
ORD5:10 pmChicago O'Hare Intl
$386

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 January 8, 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 2/7

8:00 am-6:18 pm

1 stop11h 18m

Idaho Falls Fanning Field

Sat 2/14

8:00 am-11:56 pm

1 stop14h 56m

$201

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 2/4

3:35 pm-10:59 pm

1 stop8h 24m

Idaho Falls Fanning Field

Wed 2/11

9:00 am-12:01 pm

1 stop26h 01m

$259

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Mon 2/9

6:06 pm-6:18 pm

1 stop25h 12m

Idaho Falls Fanning Field

Fri 2/13

5:20 pm-11:56 pm

1 stop29h 36m

$289

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 1/30

6:06 pm-6:18 pm

1 stop25h 12m

Idaho Falls Fanning Field

Mon 2/2

6:58 pm-2:38 pm

1 stop18h 40m

$311

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Mon 2/9

6:06 pm-6:18 pm

1 stop25h 12m

Idaho Falls Fanning Field

Thu 2/12

5:20 pm-12:01 pm

1 stop17h 41m

$315

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 2/4

9:00 am-10:59 pm

2 stops14h 59m

Idaho Falls Fanning Field

Wed 2/11

9:00 am-5:10 pm

1 stop7h 10m

$318

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Tue 2/3

2:06 pm-10:59 pm

2 stops9h 53m

Idaho Falls Fanning Field

Tue 2/10

6:58 pm-2:38 pm

1 stop18h 40m

$319

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Tue 6/30

10:36 am-1:13 pm

Nonstop3h 37m

Idaho Falls Fanning Field

Tue 7/7

12:41 pm-5:10 pm

Nonstop3h 29m

$335

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Tue 1/27

9:32 am-5:51 pm

2 stops9h 19m

Idaho Falls Fanning Field

Tue 2/3

6:35 pm-9:53 am

2 stops14h 18m

$362

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Tue 2/3

1:51 pm-10:57 pm

2 stops10h 06m

Idaho Falls Fanning Field

Wed 2/11

6:35 pm-9:54 am

2 stops14h 19m

$392

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $396.

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?

No. A direct flight is the cheapest option for a flight between Chicago to Idaho Falls.

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

Fastest flight time

3h 37m

Direct flights

Every day

Airports in Idaho Falls

1 airport
The fastest flight from Chicago to Idaho Falls takes 3h 37m
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 37m.

  • 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
11,094 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.

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