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Cheap flights from Chicago to Idaho Falls from $111

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 9/10. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
1:02 pm - 11:50 am
ORD
-
IDA
23h 48m
1 stop
Multiple Airlines Logo
6:21 pm - 5:42 am
IDA
-
ORD
10h 21m
1 stop
$233Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
1:02 pm - 11:50 am
ORD
-
IDA
23h 48m
1 stop
Multiple Airlines Logo
7:23 pm - 9:35 pm
IDA
-
ORD
25h 12m
2 stops
$270Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
American Airlines Logo
10:35 am - 1:09 pm
ORD
-
IDA
3h 34mnonstop
American Airlines Logo
1:43 pm - 6:18 pm
IDA
-
ORD
3h 35mnonstop
$271American Airlines
Tue, Aug 25 - Sat, Aug 29
Multiple Airlines Logo
7:29 am - 4:05 pm
ORD
-
IDA
9h 36m
1 stop
Multiple Airlines Logo
5:33 pm - 1:36 pm
IDA
-
ORD
19h 03m
2 stops
$272Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:29 am - 4:05 pm
ORD
-
IDA
9h 36m
1 stop
Multiple Airlines Logo
5:33 pm - 1:36 pm
IDA
-
ORD
19h 03m
2 stops
$288Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Delta Logo
2:00 pm - 6:20 pm
ORD
-
IDA
5h 20m
1 stop
Delta Logo
6:00 am - 11:59 am
IDA
-
ORD
4h 59m
1 stop
$291Delta
Tue, Aug 25 - Sat, Aug 29
Delta Logo
11:22 am - 10:32 pm
ORD
-
IDA
12h 10m
2 stops
Delta Logo
6:00 am - 11:59 am
IDA
-
ORD
4h 59m
1 stop
$296Delta
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
8:11 pm - 8:54 am
ORD
-
IDA
13h 43m
1 stop
Multiple Airlines Logo
8:36 pm - 1:36 pm
IDA
-
ORD
16h 00m
2 stops
$298Multiple Airlines
Thu, Sep 3 - Mon, Sep 7
Delta Logo
1:59 pm - 10:32 pm
ORD
-
IDA
9h 33m
2 stops
Delta Logo
6:00 am - 4:17 pm
IDA
-
ORD
9h 17m
2 stops
$301Delta
Tue, Aug 18 - Tue, Aug 25
Delta Logo
1:51 pm - 10:32 pm
MDW
-
IDA
9h 41m
2 stops
Delta Logo
6:00 am - 4:15 pm
IDA
-
MDW
9h 15m
2 stops
$301Delta
Tue, Aug 18 - Tue, Aug 25

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American Airlines flights from Chicago to Idaho Falls

Our best American Airlines deals on Chicago to Idaho Falls flight tickets
American Airlines
Aug 25
ORD10:35 amChicago O'Hare Intl
3h 34m
IDA1:09 pmIdaho Falls Fanning Field
Aug 29
IDA1:43 pmIdaho Falls Fanning Field
3h 35m
ORD6:18 pmChicago O'Hare Intl
$271
American Airlines
Oct 20
ORD6:00 amChicago O'Hare Intl
8h 09m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Oct 24
IDA1:50 pmIdaho Falls Fanning Field
3h 34m
ORD6:24 pmChicago O'Hare Intl
$311
American Airlines
Aug 25
ORD5:00 amChicago O'Hare Intl
7h 30m
1 stop
IDA11:30 amIdaho Falls Fanning Field
Aug 29
IDA1:43 pmIdaho Falls Fanning Field
3h 35m
ORD6:18 pmChicago O'Hare Intl
$331

Delta flights from Chicago to Idaho Falls

Our best Delta deals on Chicago to Idaho Falls flight tickets
Delta
Aug 25
ORD2:00 pmChicago O'Hare Intl
5h 20m
1 stop
IDA6:20 pmIdaho Falls Fanning Field
Aug 29
IDA6:00 amIdaho Falls Fanning Field
4h 59m
1 stop
ORD11:59 amChicago O'Hare Intl
$291
Delta
Aug 22
ORD11:22 amChicago O'Hare Intl
12h 10m
2 stops
IDA10:32 pmIdaho Falls Fanning Field
Aug 29
IDA6:00 amIdaho Falls Fanning Field
4h 59m
1 stop
ORD11:59 amChicago O'Hare Intl
$296
Delta
Aug 18
ORD1:59 pmChicago O'Hare Intl
9h 33m
2 stops
IDA10:32 pmIdaho Falls Fanning Field
Aug 25
IDA6:00 amIdaho Falls Fanning Field
9h 17m
2 stops
ORD4:17 pmChicago O'Hare Intl
$301

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 July 9, 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

Thu 9/10

1:02 pm-11:50 am

1 stop23h 48m

Idaho Falls Fanning Field

Mon 9/14

6:21 pm-5:42 am

1 stop10h 21m

$233

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 9/10

1:02 pm-11:50 am

1 stop23h 48m

Idaho Falls Fanning Field

Mon 9/14

7:23 pm-9:35 pm

2 stops25h 12m

$270
Quickest round-trip

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Tue 8/25

10:35 am-1:09 pm

Nonstop3h 34m

Idaho Falls Fanning Field

Sat 8/29

1:43 pm-6:18 pm

Nonstop3h 35m

$271

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Mon 8/17

7:29 am-4:05 pm

1 stop9h 36m

Idaho Falls Fanning Field

Mon 8/24

5:33 pm-1:36 pm

2 stops19h 03m

$272

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Mon 8/17

7:29 am-4:05 pm

1 stop9h 36m

Idaho Falls Fanning Field

Mon 8/24

5:33 pm-1:36 pm

2 stops19h 03m

$288

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Tue 8/25

2:00 pm-6:20 pm

1 stop5h 20m

Idaho Falls Fanning Field

Sat 8/29

6:00 am-11:59 am

1 stop4h 59m

$291

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 8/22

11:22 am-10:32 pm

2 stops12h 10m

Idaho Falls Fanning Field

Sat 8/29

6:00 am-11:59 am

1 stop4h 59m

$296

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 9/3

8:11 pm-8:54 am

1 stop13h 43m

Idaho Falls Fanning Field

Mon 9/7

8:36 pm-1:36 pm

2 stops16h 00m

$298

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Tue 8/18

1:59 pm-10:32 pm

2 stops9h 33m

Idaho Falls Fanning Field

Tue 8/25

6:00 am-4:17 pm

2 stops9h 17m

$301

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Tue 8/18

1:51 pm-10:32 pm

2 stops9h 41m

Idaho Falls Fanning Field

Tue 8/25

6:00 am-4:15 pm

2 stops9h 15m

$301

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 Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $397. 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 is only 1 cabin class 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

$225

Fastest flight time

3h 34m

Direct flights

Every day

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Chicago in the past 72 hours is $225. The best round-trip flight deal from Chicago to Idaho Falls found on momondo in the last 72 hours is $415.
The fastest flight from Chicago to Idaho Falls takes 3h 34m
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 34m.

  • 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
United AirlinesPriceFrom $319Free CancellationRating
7.4
9,955 reviews
Search United Airlines flights
American AirlinesPriceFrom $371Free CancellationRating
7.1
11,789 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 6 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 $449. 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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