What airlines fly to Idaho?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Idaho from Chicago according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Chicago to Idaho?

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Chicago to Idaho

How many flights depart from Chicago to Idaho on average per week?

126 flights are operational weekly from Chicago to Idaho as of June 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.

How many flights depart from Chicago to Idaho on average per day?

As of June 2026, there are 18 flights per day flying from Chicago to Idaho. The most common time of day flights depart is 7:00PM, with 47% of flights taking off in the evening.

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?

The number of operators available for flights from Chicago to Idaho is 5 as of June 2026.

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.

$136 Cheap Flights from Chicago to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 11:38 am

ORD

IDA

3h 38mnonstop

2:25 pm - 10:00 pm

IDA

ORD

6h 35m

1 stop

$294United Airlines

Sat, Aug 22 - Wed, Aug 26

7:00 am - 1:29 pm

ORD

IDA

7h 29m

1 stop

4:04 pm - 10:46 pm

IDA

ORD

5h 42m

1 stop

$299United Airlines

Sat, Aug 22 - Wed, Aug 26

7:40 pm - 11:55 pm

ORD

GEG

6h 15m

1 stop

5:15 am - 1:23 pm

GEG

ORD

6h 08m

1 stop

$317Delta

Wed, Jul 29 - Sat, Aug 8

7:25 pm - 11:09 pm

MDW

GEG

5h 44m

1 stop

12:36 pm - 10:36 pm

GEG

MDW

8h 00m

1 stop

$317Delta

Wed, Aug 12 - Sat, Aug 22

5:00 am - 11:55 am

ORD

GEG

8h 55m

1 stop

2:09 pm - 8:15 pm

GEG

ORD

4h 06mnonstop

$319American Airlines

Sat, Sep 12 - Thu, Sep 17

4:45 pm - 10:05 pm

MDW

GEG

7h 20m

1 stop

6:00 am - 11:30 am

GEG

MDW

3h 30mnonstop

$319Southwest

Tue, Aug 25 - Thu, Sep 3

11:30 am - 1:37 pm

ORD

GEG

4h 07mnonstop

2:27 pm - 8:28 pm

GEG

ORD

4h 01mnonstop

$321American Airlines

Mon, Aug 10 - Thu, Aug 13

4:40 pm - 10:25 pm

MDW

GEG

7h 45m

2 stops

6:00 am - 11:30 am

GEG

MDW

3h 30mnonstop

$324Southwest

Tue, Aug 25 - Thu, Sep 3

6:42 pm - 11:59 pm

ORD

GEG

7h 17m

1 stop

1:26 pm - 11:59 pm

GEG

ORD

8h 33m

1 stop

$328Alaska Airlines

Thu, Aug 6 - Wed, Aug 12

8:20 pm - 8:26 am

ORD

GEG

14h 06m

1 stop

12:42 pm - 5:00 am

GEG

ORD

14h 18m

1 stop

$336Alaska Airlines

Tue, Jul 21 - Sat, Jul 25

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American Airlines flights from Chicago to Idaho

Our best American Airlines deals on Chicago to Idaho flight tickets

American Airlines

Sep 12

ORD5:00 amChicago O'Hare Intl

8h 55m

1 stop

GEG11:55 amSpokane

Sep 17

GEG2:09 pmSpokane

4h 06m

ORD8:15 pmChicago O'Hare Intl

$319

American Airlines

Aug 10

ORD11:30 amChicago O'Hare Intl

4h 07m

GEG1:37 pmSpokane

Aug 13

GEG2:27 pmSpokane

4h 01m

ORD8:28 pmChicago O'Hare Intl

$321

American Airlines

Jul 4

ORD7:00 amChicago O'Hare Intl

7h 23m

1 stop

GEG12:23 pmSpokane

Jul 15

GEG2:29 pmSpokane

4h 03m

ORD8:32 pmChicago O'Hare Intl

$326

Alaska Airlines flights from Chicago to Idaho

Our best Alaska Airlines deals on Chicago to Idaho flight tickets

Alaska Airlines

Aug 6

ORD6:42 pmChicago O'Hare Intl

7h 17m

1 stop

GEG11:59 pmSpokane

Aug 12

GEG1:26 pmSpokane

8h 33m

1 stop

ORD11:59 pmChicago O'Hare Intl

$328

Alaska Airlines

Jul 21

ORD8:20 pmChicago O'Hare Intl

14h 06m

1 stop

GEG8:26 amSpokane

Jul 25

GEG12:42 pmSpokane

14h 18m

1 stop

ORD5:00 amChicago O'Hare Intl

$336

Alaska Airlines

Aug 6

ORD6:42 pmChicago O'Hare Intl

7h 17m

1 stop

GEG11:59 pmSpokane

Aug 10

GEG8:15 amSpokane

8h 42m

1 stop

ORD6:57 pmChicago O'Hare Intl

$338

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 8/22

9:00 am-11:38 am

Nonstop3h 38m

Idaho Falls Fanning Field

Wed 8/26

2:25 pm-10:00 pm

1 stop6h 35m

$294

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 8/22

7:00 am-1:29 pm

1 stop7h 29m

Idaho Falls Fanning Field

Wed 8/26

4:04 pm-10:46 pm

1 stop5h 42m

$299

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Wed 7/29

7:40 pm-11:55 pm

1 stop6h 15m

Spokane

Sat 8/8

5:15 am-1:23 pm

1 stop6h 08m

$317

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Wed 8/12

7:25 pm-11:09 pm

1 stop5h 44m

Spokane

Sat 8/22

12:36 pm-10:36 pm

1 stop8h 00m

$317

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Sat 9/12

5:00 am-11:55 am

1 stop8h 55m

Spokane

Thu 9/17

2:09 pm-8:15 pm

Nonstop4h 06m

$319

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Tue 8/25

4:45 pm-10:05 pm

1 stop7h 20m

Spokane

Thu 9/3

6:00 am-11:30 am

Nonstop3h 30m

$319

Quickest round-trip

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Mon 8/10

11:30 am-1:37 pm

Nonstop4h 07m

Spokane

Thu 8/13

2:27 pm-8:28 pm

Nonstop4h 01m

$321

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Tue 8/25

4:40 pm-10:25 pm

2 stops7h 45m

Spokane

Thu 9/3

6:00 am-11:30 am

Nonstop3h 30m

$324

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Thu 8/6

6:42 pm-11:59 pm

1 stop7h 17m

Spokane

Wed 8/12

1:26 pm-11:59 pm

1 stop8h 33m

$328

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Tue 7/21

8:20 pm-8:26 am

1 stop14h 06m

Spokane

Sat 7/25

12:42 pm-5:00 am

1 stop14h 18m

$336

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Idaho?

In general, July 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 $91. If you don’t want to visit Idaho in July, then you should wait until August to fly from Chicago, when ticket prices are also cheap, with an average price of $114.

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 $571.

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 $399. 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 $560 per ticket.

What is the cheapest Chicago to Idaho flight route?

Fly from Chicago O'Hare Intl to Boise Air Term. Gowen Fld for the best Chicago - Idaho flight prices

How far in advance should I book a flight from Chicago 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 $447 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 $320 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.

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	$243
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 $243. The best round-trip flight deal from Chicago to Idaho found on momondo in the last 72 hours is $370.

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), Jackson Hole (JAC).

Search flight deals

Frequently asked questions about flying from Chicago to Idaho

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?
The number of operators available for flights from Chicago to Idaho is 5 as of June 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Chicago to Idaho is Embraer 175 (Enhanced Winglets), representing 30.37% of all bookings. The subsequent popular models are Boeing 737-800 at 23.44%, Airbus A319 at 18.45%, and Boeing 737 MAX 9 at 8.46%.

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
United Airlines	PriceFrom $263	Free Cancellation	Rating 7.4 9,886 reviews	Search United Airlines flights
Delta	PriceFrom $268	Free Cancellation	Rating 7.8 8,440 reviews	Search Delta flights
American Airlines	PriceFrom $279	Free Cancellation	Rating 7.1 11,755 reviews	Search American Airlines flights
Southwest	PriceFrom $288	Free Cancellation	Rating 7.9 4,242 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

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Popular cities in Idaho

Flights to New Yorkfrom $75

Flights to Los Angelesfrom $56

Flights to Orlandofrom $63

Flights to Miamifrom $78

Flights to Chicagofrom $63

Flights to San Franciscofrom $50

Flights to Las Vegasfrom $56

Flights to Washington, D.C.from $57

Flights to Bostonfrom $72

Flights to Atlantafrom $58

Flights to Fort Lauderdalefrom $50

Flights to Dallasfrom $59

Cheap flights from Chicago to Idaho from $136

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 8/12. 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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American Airlines flights from Chicago to Idaho

Our best American Airlines deals on Chicago to Idaho flight tickets

Alaska Airlines flights from Chicago to Idaho

Our best Alaska Airlines deals on Chicago to Idaho flight tickets

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How to get the cheapest flight ticket from Chicago to Idaho

What is the cheapest month to fly to Idaho?

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

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

What is the cheapest Chicago to Idaho flight route?

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

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

What is the cheapest airline that flies from Chicago to Idaho?

What airlines fly to Idaho?

How many flights depart from Chicago to Idaho on average per day?

How many flights depart from Chicago to Idaho on average per week?

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

Fastest flight time

Direct flights

Airports in Idaho

Frequently asked questions about flying 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

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Idaho

Popular cities in Idaho

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According to popular flight searches on momondo this year

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