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Cheap flights from Chicago to Idaho from $96

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 departing on 3/4. 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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:02 pm - 11:27 am
ORD
-
GEG
19h 25m
2 stops
Frontier Logo
12:22 pm - 1:25 pm
GEG
-
ORD
23h 03m
1 stop
$212Frontier
Wed, Feb 18 - Thu, Feb 26
Multiple Airlines Logo
11:51 am - 11:27 am
ORD
-
GEG
25h 36m
2 stops
Multiple Airlines Logo
9:12 pm - 6:08 am
GEG
-
ORD
30h 56m
1 stop
$213Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
8:42 am - 11:53 am
ORD
-
SUN
4h 11mnonstop
United Airlines Logo
12:34 pm - 5:05 pm
SUN
-
ORD
3h 31mnonstop
$226United Airlines
Mon, Mar 16 - Thu, Mar 19
United Airlines Logo
8:42 am - 11:53 am
ORD
-
SUN
4h 11mnonstop
United Airlines Logo
2:33 pm - 11:52 pm
SUN
-
ORD
8h 19m
1 stop
$236United Airlines
Sun, Mar 15 - Tue, Mar 17
Delta Logo
7:20 am - 2:49 pm
ORD
-
SUN
8h 29m
1 stop
Delta Logo
2:15 pm - 11:52 pm
SUN
-
ORD
8h 37m
1 stop
$246Delta
Tue, Mar 17 - Fri, Mar 20
American Airlines Logo
9:47 am - 1:00 pm
ORD
-
BOI
4h 13mnonstop
American Airlines Logo
1:30 pm - 6:10 pm
BOI
-
ORD
3h 40mnonstop
$262American Airlines
Wed, Feb 18 - Sat, Feb 21
American Airlines Logo
6:05 am - 1:13 pm
ORD
-
IDA
8h 08m
1 stop
American Airlines Logo
1:43 pm - 9:56 pm
IDA
-
ORD
7h 13m
1 stop
$269American Airlines
Wed, Apr 22 - Sat, Apr 25
Southwest Logo
10:05 am - 6:20 pm
MDW
-
BOI
9h 15m
1 stop
Southwest Logo
8:15 pm - 5:45 am
BOI
-
MDW
8h 30m
1 stop
$269Southwest
Thu, Mar 12 - Mon, Mar 16
Delta Logo
7:20 am - 2:49 pm
ORD
-
SUN
8h 29m
1 stop
Delta Logo
2:15 pm - 11:52 pm
SUN
-
ORD
8h 37m
1 stop
$273Delta
Tue, Mar 17 - Sat, Mar 21
Southwest Logo
7:55 am - 6:25 pm
MDW
-
BOI
11h 30m
1 stop
Southwest Logo
11:30 am - 8:45 pm
BOI
-
MDW
8h 15m
1 stop
$275Southwest
Mon, Feb 23 - Fri, Feb 27

Frontier flights from Chicago to Idaho

Our best Frontier deals on Chicago to Idaho flight tickets
Frontier
Feb 18
ORD6:02 pmChicago O'Hare Intl
19h 25m
2 stops
GEG11:27 amSpokane
Feb 26
GEG12:22 pmSpokane
23h 03m
1 stop
ORD1:25 pmChicago O'Hare Intl
$212
Frontier
Apr 1
ORD3:29 pmChicago O'Hare Intl
20h 39m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
Apr 5
BOI12:03 pmBoise Air Term. Gowen Fld
24h 16m
1 stop
ORD1:19 pmChicago O'Hare Intl
$238
Frontier
Apr 1
ORD3:29 pmChicago O'Hare Intl
20h 39m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
Apr 5
BOI12:03 pmBoise Air Term. Gowen Fld
24h 16m
1 stop
ORD1:19 pmChicago O'Hare Intl
$283

Southwest flights from Chicago to Idaho

Our best Southwest deals on Chicago to Idaho flight tickets
Southwest
Mar 12
MDW10:05 amChicago Midway
9h 15m
1 stop
BOI6:20 pmBoise Air Term. Gowen Fld
Mar 16
BOI8:15 pmBoise Air Term. Gowen Fld
8h 30m
1 stop
MDW5:45 amChicago Midway
$269
Southwest
Feb 23
MDW7:55 amChicago Midway
11h 30m
1 stop
BOI6:25 pmBoise Air Term. Gowen Fld
Feb 27
BOI11:30 amBoise Air Term. Gowen Fld
8h 15m
1 stop
MDW8:45 pmChicago Midway
$275
Southwest
Apr 7
ORD11:55 amChicago O'Hare Intl
13h 30m
2 stops
GEG11:25 pmSpokane
Apr 14
GEG5:10 amSpokane
11h 40m
2 stops
ORD6:50 pmChicago O'Hare Intl
$286

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Idaho 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 21, 2026.
Use the filters below to find and compare flights from Chicago to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Wed 2/18

6:02 pm-11:27 am

2 stops19h 25m

Spokane

Thu 2/26

12:22 pm-1:25 pm

1 stop23h 03m

$212

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Wed 3/4

11:51 am-11:27 am

2 stops25h 36m

Spokane

Sun 3/8

9:12 pm-6:08 am

1 stop30h 56m

$213

ChicagoHailey

ORD - SUN

ORDSUN

Chicago O'Hare Intl

Mon 3/16

8:42 am-11:53 am

Nonstop4h 11m

Hailey Sun Valley-Friedman

Thu 3/19

12:34 pm-5:05 pm

Nonstop3h 31m

$226

ChicagoHailey

ORD - SUN

ORDSUN

Chicago O'Hare Intl

Sun 3/15

8:42 am-11:53 am

Nonstop4h 11m

Hailey Sun Valley-Friedman

Tue 3/17

2:33 pm-11:52 pm

1 stop8h 19m

$236

ChicagoHailey

ORD - SUN

ORDSUN

Chicago O'Hare Intl

Tue 3/17

7:20 am-2:49 pm

1 stop8h 29m

Hailey Sun Valley-Friedman

Fri 3/20

2:15 pm-11:52 pm

1 stop8h 37m

$246

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 2/18

9:47 am-1:00 pm

Nonstop4h 13m

Boise Air Term. Gowen Fld

Sat 2/21

1:30 pm-6:10 pm

Nonstop3h 40m

$262

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 4/22

6:05 am-1:13 pm

1 stop8h 08m

Idaho Falls Fanning Field

Sat 4/25

1:43 pm-9:56 pm

1 stop7h 13m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Thu 3/12

10:05 am-6:20 pm

1 stop9h 15m

Boise Air Term. Gowen Fld

Mon 3/16

8:15 pm-5:45 am

1 stop8h 30m

$269

ChicagoHailey

ORD - SUN

ORDSUN

Chicago O'Hare Intl

Tue 3/17

7:20 am-2:49 pm

1 stop8h 29m

Hailey Sun Valley-Friedman

Sat 3/21

2:15 pm-11:52 pm

1 stop8h 37m

$273

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Mon 2/23

7:55 am-6:25 pm

1 stop11h 30m

Boise Air Term. Gowen Fld

Fri 2/27

11:30 am-8:45 pm

1 stop8h 15m

$275

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 from

How to get the cheapest flight ticket from Chicago to Idaho

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 month to fly to Idaho?

In general, September is the cheapest month to fly from Chicago to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $295. If you don’t want to visit Idaho in September, then you should wait until October to fly from Chicago, when ticket prices are also cheap, with an average price of $299.

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

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $362. On the other hand, Sunday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $519.

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

According to our data, the cheapest time of day to fly to Idaho is in the morning. momondo users have found flights departing from Chicago to Idaho in the morning for as low as $408. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $529 per ticket.

What is the cheapest Chicago to Idaho flight route?

Fly from Chicago O'Hare Intl to Hailey Sun Valley-Friedman for the best Chicago - Idaho flight prices

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $406 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Chicago for as low as $241 on momondo.

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

There are 4 cabin classes available to choose from on Chicago to Idaho 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 flights?

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

Cheap Chicago to Idaho flight deals and tips

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

Best Price Found

$245

Fastest flight time

3h 17m

Direct flights

Every day

Airports in Idaho

27 airports
The best one-way flight to Idaho from Chicago in the past 72 hours is $245. The best round-trip flight deal from Chicago to Idaho found on momondo in the last 72 hours is $317.
The fastest flight from Chicago to Idaho takes 3h 17m
Direct flights go from Chicago to Idaho every day.
There are 27 airports in Idaho. From Chicago there are direct flights to Idaho Falls Fanning Field (IDA), Spokane (GEG), Jackson Hole (JAC), Boise Air Term. Gowen Fld (BOI) and 1 more.
Search flight deals

  • When did momondo last update prices for flights from Chicago to Idaho?

    Prices for flights from Chicago to Idaho were last updated today.

  • How many operators does momondo search for flights from Chicago to Idaho?

  • How old do you have to be to fly from Chicago to Idaho?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Chicago to Idaho

Compare and see reviews for airlines that fly from Chicago to Idaho with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $174Free CancellationRating
7.9
8,089 reviews
Search Delta flights
American AirlinesPriceFrom $237Free CancellationRating
7.2
11,174 reviews
Search American Airlines flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
SouthwestPriceFrom $254Free CancellationRating
8.0
4,266 reviews
Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Idaho for you.

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

All flight searches from Chicago to Idaho on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Idaho from Chicago.

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

If you are simply researching potential flights to Idaho, momondo offers a useful price alert feature which will track prices for flights to Idaho from Chicago and alert you when they change.

An easier way to manage your Idaho 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.
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