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Cheap flights from Chicago to Idaho Falls from $155

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 11/27. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
8:00 am - 3:38 pmORD-IDA
8h 38m1 stop
Alaska Airlines Logo
3:50 pm - 12:24 amIDA-ORD
7h 34m1 stop
$307Alaska Airlines
Find Deal
sáb., oct. 25 - mar., oct. 28
Alaska Airlines Logo
3:15 pm - 10:38 pmORD-IDA
8h 23m1 stop
Alaska Airlines Logo
4:15 pm - 12:06 amIDA-ORD
6h 51m1 stop
$316Alaska Airlines
Find Deal
mar., oct. 21 - sáb., oct. 25
Alaska Airlines Logo
8:00 am - 3:13 pmORD-IDA
8h 13m1 stop
Alaska Airlines Logo
3:50 pm - 12:24 amIDA-ORD
7h 34m1 stop
$318Alaska Airlines
Find Deal
jue., nov. 6 - dom., nov. 9
United Airlines Logo
2:45 pm - 9:11 pmORD-IDA
7h 26m1 stop
United Airlines Logo
10:45 am - 6:54 pmIDA-ORD
7h 09m1 stop
$342United Airlines
Find Deal
sáb., feb. 14 - vie., feb. 20
American Airlines Logo
9:44 am - 12:24 pmORD-IDA
3h 40mnonstop
American Airlines Logo
1:11 pm - 5:28 pmIDA-ORD
3h 17mnonstop
$357American Airlines
Find Deal
sáb., oct. 25 - vie., oct. 31
Delta Logo
7:50 am - 12:33 pmORD-IDA
5h 43m1 stop
Delta Logo
6:53 pm - 8:32 amIDA-ORD
12h 39m2 stops
$370Delta
Find Deal
sáb., oct. 25 - mar., oct. 28
American Airlines Logo
9:44 am - 12:24 pmORD-IDA
3h 40mnonstop
American Airlines Logo
12:55 pm - 5:12 pmIDA-ORD
3h 17mnonstop
$381American Airlines
Find Deal
sáb., oct. 25 - mar., oct. 28
United Airlines Logo
1:00 pm - 5:18 pmORD-IDA
5h 18m1 stop
United Airlines Logo
2:45 pm - 11:59 pmIDA-ORD
8h 14m1 stop
$462United Airlines
Find Deal
sáb., oct. 25 - vie., oct. 31
Multiple Airlines Logo
6:25 pm - 3:57 pmORD-IDA
22h 32m2 stops
Multiple Airlines Logo
10:53 pm - 5:32 amIDA-ORD
29h 39m1 stop
$468Multiple Airlines
Find Deal
sáb., nov. 22 - dom., nov. 30
Delta Logo
1:25 pm - 10:30 pmORD-IDA
10h 05m2 stops
Delta Logo
6:53 pm - 8:32 amIDA-ORD
12h 39m2 stops
$475Delta
Find Deal
sáb., oct. 25 - mar., oct. 28

United Airlines flights from Chicago to Idaho Falls

Our best United Airlines deals on Chicago to Idaho Falls flight tickets
United Airlines
Feb 14
ORD2:45 pmChicago O'Hare Intl
7h 26m
1 stop
IDA9:11 pmIdaho Falls Fanning Field
Feb 20
IDA10:45 amIdaho Falls Fanning Field
7h 09m
1 stop
ORD6:54 pmChicago O'Hare Intl
$342
Find similar
United Airlines
Oct 25
ORD1:00 pmChicago O'Hare Intl
5h 18m
1 stop
IDA5:18 pmIdaho Falls Fanning Field
Oct 31
IDA2:45 pmIdaho Falls Fanning Field
8h 14m
1 stop
ORD11:59 pmChicago O'Hare Intl
$462
Find similar
United Airlines
Oct 19
ORD5:01 amChicago O'Hare Intl
5h 47m
1 stop
IDA9:48 amIdaho Falls Fanning Field
Oct 23
IDA5:56 pmIdaho Falls Fanning Field
5h 03m
1 stop
ORD11:59 pmChicago O'Hare Intl
$531
Find similar

Alaska Airlines flights from Chicago to Idaho Falls

Our best Alaska Airlines deals on Chicago to Idaho Falls flight tickets
Alaska Airlines
Oct 25
ORD8:00 amChicago O'Hare Intl
8h 38m
1 stop
IDA3:38 pmIdaho Falls Fanning Field
Oct 28
IDA3:50 pmIdaho Falls Fanning Field
7h 34m
1 stop
ORD12:24 amChicago O'Hare Intl
$307
Find similar
Alaska Airlines
Oct 21
ORD3:15 pmChicago O'Hare Intl
8h 23m
1 stop
IDA10:38 pmIdaho Falls Fanning Field
Oct 25
IDA4:15 pmIdaho Falls Fanning Field
6h 51m
1 stop
ORD12:06 amChicago O'Hare Intl
$316
Find similar
Alaska Airlines
Nov 6
ORD8:00 amChicago O'Hare Intl
8h 13m
1 stop
IDA3:13 pmIdaho Falls Fanning Field
Nov 9
IDA3:50 pmIdaho Falls Fanning Field
7h 34m
1 stop
ORD12:24 amChicago O'Hare Intl
$318
Find similar

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 octubre 6, 2025.
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

sáb. 10/25

8:00 am-3:38 pm

1 stop8h 38m

Idaho Falls Fanning Field

mar. 10/28

3:50 pm-12:24 am

1 stop7h 34m

$307

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mar. 10/21

3:15 pm-10:38 pm

1 stop8h 23m

Idaho Falls Fanning Field

sáb. 10/25

4:15 pm-12:06 am

1 stop6h 51m

$316

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

jue. 11/6

8:00 am-3:13 pm

1 stop8h 13m

Idaho Falls Fanning Field

dom. 11/9

3:50 pm-12:24 am

1 stop7h 34m

$318

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 2/14

2:45 pm-9:11 pm

1 stop7h 26m

Idaho Falls Fanning Field

vie. 2/20

10:45 am-6:54 pm

1 stop7h 09m

$342

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 10/25

9:44 am-12:24 pm

Nonstop3h 40m

Idaho Falls Fanning Field

vie. 10/31

1:11 pm-5:28 pm

Nonstop3h 17m

$357

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 10/25

7:50 am-12:33 pm

1 stop5h 43m

Idaho Falls Fanning Field

mar. 10/28

6:53 pm-8:32 am

2 stops12h 39m

$370

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 10/25

9:44 am-12:24 pm

Nonstop3h 40m

Idaho Falls Fanning Field

mar. 10/28

12:55 pm-5:12 pm

Nonstop3h 17m

$381

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 10/25

1:00 pm-5:18 pm

1 stop5h 18m

Idaho Falls Fanning Field

vie. 10/31

2:45 pm-11:59 pm

1 stop8h 14m

$462

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 11/22

6:25 pm-3:57 pm

2 stops22h 32m

Idaho Falls Fanning Field

dom. 11/30

10:53 pm-5:32 am

1 stop29h 39m

$468

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

sáb. 10/25

1:25 pm-10:30 pm

2 stops10h 05m

Idaho Falls Fanning Field

mar. 10/28

6:53 pm-8:32 am

2 stops12h 39m

$475

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the morning. Flights from Chicago to Idaho Falls during this time can be as low as $371. Try not to purchase tickets at noon because they tend to be around $586. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best Price Found

$396

Fastest flight time

3h 40m

Direct flights

Mon, Wed and Sun

Airports in Idaho Falls

1 airport
The best flight deal from Chicago to Idaho Falls found on momondo in the last 72 hours is $396
The fastest flight from Chicago to Idaho Falls takes 3h 40m
Direct flights go from Chicago to Idaho Falls on Monday, Wednesday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Idaho Falls: 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 40m.

  • 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
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $406Free CancellationRating
7.4
8,957 reviews
Search United 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 4 flights/week on average for this route. A good American Airlines flight deal for Chicago to Idaho Falls starts from $323 round-trip, up to an average price of $391. Our users have rated American Airlines at 7.2/10.

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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