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Cheap flights from Chicago to Idaho Falls from $146

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 11/17. 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

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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.
United Airlines Logo
5:00 am - 9:53 am
ORD
-
IDA
5h 53m
1 stop
United Airlines Logo
4:04 pm - 11:59 pm
IDA
-
ORD
6h 55m
1 stop
$291United Airlines
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
5:00 am - 9:50 am
ORD
-
IDA
5h 50m
1 stop
United Airlines Logo
4:04 pm - 10:46 pm
IDA
-
ORD
5h 42m
1 stop
$306United Airlines
Wed, Aug 5 - Wed, Aug 12
American Airlines Logo
10:45 am - 1:28 pm
ORD
-
IDA
3h 43mnonstop
American Airlines Logo
1:58 pm - 6:35 pm
IDA
-
ORD
3h 37mnonstop
$309American Airlines
Fri, Sep 11 - Thu, Sep 17
American Airlines Logo
5:00 am - 11:45 am
ORD
-
IDA
7h 45m
1 stop
American Airlines Logo
1:58 pm - 6:35 pm
IDA
-
ORD
3h 37mnonstop
$311American Airlines
Sat, Sep 12 - Wed, Sep 16
Delta Logo
7:45 am - 2:37 pm
ORD
-
IDA
7h 52m
1 stop
Delta Logo
6:00 am - 12:00 pm
IDA
-
ORD
5h 00m
1 stop
$329Delta
Sat, Jun 13 - Sat, Jun 20
United Airlines Logo
5:00 am - 9:50 am
ORD
-
IDA
5h 50m
1 stop
United Airlines Logo
12:30 pm - 4:50 pm
IDA
-
ORD
3h 20mnonstop
$351United Airlines
Sat, Jun 13 - Sat, Jun 20
Delta Logo
2:09 pm - 6:17 pm
ORD
-
IDA
5h 08m
1 stop
Delta Logo
3:25 pm - 9:57 pm
IDA
-
ORD
5h 32m
1 stop
$355Delta
Thu, Jun 25 - Tue, Jun 30
United Airlines Logo
5:00 am - 9:51 am
ORD
-
IDA
5h 51m
1 stop
United Airlines Logo
4:04 pm - 10:46 pm
IDA
-
ORD
5h 42m
1 stop
$357United Airlines
Thu, Aug 13 - Tue, Aug 18
Delta Logo
7:45 am - 2:37 pm
ORD
-
IDA
7h 52m
1 stop
Delta Logo
6:00 am - 12:00 pm
IDA
-
ORD
5h 00m
1 stop
$359Delta
Sat, Jun 13 - Tue, Jun 23
American Airlines Logo
3:00 pm - 9:22 pm
ORD
-
IDA
7h 22m
1 stop
American Airlines Logo
12:12 pm - 8:33 pm
IDA
-
ORD
7h 21m
1 stop
$360American Airlines
Sat, Sep 19 - Tue, Sep 22

American Airlines flights from Chicago to Idaho Falls

Our best American Airlines deals on Chicago to Idaho Falls flight tickets
American Airlines
Sep 11
ORD10:45 amChicago O'Hare Intl
3h 43m
IDA1:28 pmIdaho Falls Fanning Field
Sep 17
IDA1:58 pmIdaho Falls Fanning Field
3h 37m
ORD6:35 pmChicago O'Hare Intl
$309
American Airlines
Sep 12
ORD5:00 amChicago O'Hare Intl
7h 45m
1 stop
IDA11:45 amIdaho Falls Fanning Field
Sep 16
IDA1:58 pmIdaho Falls Fanning Field
3h 37m
ORD6:35 pmChicago O'Hare Intl
$311
American Airlines
Sep 19
ORD3:00 pmChicago O'Hare Intl
7h 22m
1 stop
IDA9:22 pmIdaho Falls Fanning Field
Sep 22
IDA12:12 pmIdaho Falls Fanning Field
7h 21m
1 stop
ORD8:33 pmChicago O'Hare Intl
$360

Delta flights from Chicago to Idaho Falls

Our best Delta deals on Chicago to Idaho Falls flight tickets
Delta
Jun 13
ORD7:45 amChicago O'Hare Intl
7h 52m
1 stop
IDA2:37 pmIdaho Falls Fanning Field
Jun 20
IDA6:00 amIdaho Falls Fanning Field
5h 00m
1 stop
ORD12:00 pmChicago O'Hare Intl
$329
Delta
Jun 25
ORD2:09 pmChicago O'Hare Intl
5h 08m
1 stop
IDA6:17 pmIdaho Falls Fanning Field
Jun 30
IDA3:25 pmIdaho Falls Fanning Field
5h 32m
1 stop
ORD9:57 pmChicago O'Hare Intl
$355
Delta
Jun 13
ORD7:45 amChicago O'Hare Intl
7h 52m
1 stop
IDA2:37 pmIdaho Falls Fanning Field
Jun 23
IDA6:00 amIdaho Falls Fanning Field
5h 00m
1 stop
ORD12:00 pmChicago O'Hare Intl
$359

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 May 27, 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

Cheapest round-trip

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 9/12

5:00 am-9:53 am

1 stop5h 53m

Idaho Falls Fanning Field

Wed 9/16

4:04 pm-11:59 pm

1 stop6h 55m

$291

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 8/5

5:00 am-9:50 am

1 stop5h 50m

Idaho Falls Fanning Field

Wed 8/12

4:04 pm-10:46 pm

1 stop5h 42m

$306
Quickest round-trip

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 9/11

10:45 am-1:28 pm

Nonstop3h 43m

Idaho Falls Fanning Field

Thu 9/17

1:58 pm-6:35 pm

Nonstop3h 37m

$309

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 9/12

5:00 am-11:45 am

1 stop7h 45m

Idaho Falls Fanning Field

Wed 9/16

1:58 pm-6:35 pm

Nonstop3h 37m

$311

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 6/13

7:45 am-2:37 pm

1 stop7h 52m

Idaho Falls Fanning Field

Sat 6/20

6:00 am-12:00 pm

1 stop5h 00m

$329

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 6/13

5:00 am-9:50 am

1 stop5h 50m

Idaho Falls Fanning Field

Sat 6/20

12:30 pm-4:50 pm

Nonstop3h 20m

$351

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 6/25

2:09 pm-6:17 pm

1 stop5h 08m

Idaho Falls Fanning Field

Tue 6/30

3:25 pm-9:57 pm

1 stop5h 32m

$355

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 8/13

5:00 am-9:51 am

1 stop5h 51m

Idaho Falls Fanning Field

Tue 8/18

4:04 pm-10:46 pm

1 stop5h 42m

$357

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 6/13

7:45 am-2:37 pm

1 stop7h 52m

Idaho Falls Fanning Field

Tue 6/23

6:00 am-12:00 pm

1 stop5h 00m

$359

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 9/19

3:00 pm-9:22 pm

1 stop7h 22m

Idaho Falls Fanning Field

Tue 9/22

12:12 pm-8:33 pm

1 stop7h 21m

$360

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 typical price of a round-trip flight between Chicago and Idaho Falls?

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $0.

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

Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $380. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Friday is $550.

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 flights?

There are 2 cabin classes available to choose from on Chicago to Idaho Falls 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

Best Price Found

$380

Fastest flight time

3h 33m

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 $380
The fastest flight from Chicago to Idaho Falls takes 3h 33m
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

Frequently asked questions about flying from Chicago to Idaho Falls

  • 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 33m.

  • 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 $371Free CancellationRating
7.1
11,642 reviews
Search American Airlines flights

  • American Airlines Flights From Chicago to Idaho Falls

    American Airlines is one of the most popular airlines flying from Chicago to Idaho Falls, operating 3 flights/week on average for this route. A good American Airlines flight deal for Chicago to Idaho Falls starts from $371 round-trip, up to an average price of $451. Our users have rated American Airlines at 7.1/10.

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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