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

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

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

As of March 2026, there are 13 flights per day flying from Chicago to Idaho. The most common time of day flights depart is 7:00PM, with 56% of flights taking off at noon.

What airlines fly to Idaho?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Idaho from Chicago according to our data. United Airlines is the first choice among our users, with 44% 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.

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

92 flights are operational weekly from Chicago to Idaho as of March 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

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 March 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.

$92 Cheap Flights from Chicago to Idaho in 2026

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 1:45 pm

ORD

GEG

8h 00m

1 stop

5:10 am - 1:55 pm

GEG

ORD

6h 45m

1 stop

$221Southwest

Wed, May 27 - Wed, Jun 3

3:29 pm - 11:08 am

ORD

BOI

20h 39m

1 stop

12:03 pm - 1:19 pm

BOI

ORD

24h 16m

1 stop

$242Frontier

Wed, Apr 8 - Sun, Apr 12

11:30 am - 2:20 pm

ORD

BOI

3h 50mnonstop

3:11 pm - 8:04 pm

BOI

ORD

3h 53mnonstop

$251American Airlines

Wed, May 27 - Wed, Jun 3

10:30 am - 12:32 pm

ORD

GEG

4h 02mnonstop

1:22 pm - 7:19 pm

GEG

ORD

3h 57mnonstop

$251American Airlines

Tue, Apr 28 - Tue, May 5

6:00 am - 12:35 pm

ORD

BOI

7h 35m

1 stop

2:57 pm - 11:59 pm

BOI

ORD

8h 02m

1 stop

$265Alaska Airlines

Sat, May 2 - Sat, May 9

3:52 pm - 10:20 pm

ORD

GEG

8h 28m

1 stop

2:45 pm - 11:59 pm

GEG

ORD

7h 14m

1 stop

$286Alaska Airlines

Tue, Apr 28 - Sat, May 2

7:35 am - 2:54 pm

ORD

SUN

8h 19m

1 stop

12:42 pm - 9:18 pm

SUN

ORD

7h 36m

1 stop

$297Delta

Tue, Apr 14 - Wed, Apr 15

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$312United Airlines

Tue, Jun 9 - Sat, Jun 13

6:00 am - 1:32 pm

ORD

WYS

8h 32m

1 stop

5:45 pm - 12:44 am

WYS

ORD

5h 59m

1 stop

$328United Airlines

Mon, Jul 13 - Fri, Jul 17

1:24 pm - 10:33 pm

MDW

GEG

11h 09m

2 stops

10:40 pm - 9:56 am

GEG

MDW

9h 16m

1 stop

$331Delta

Sat, Apr 18 - Wed, Apr 22

Frontier flights from Chicago to Idaho

Our best Frontier deals on Chicago to Idaho flight tickets

Frontier

Apr 8

ORD3:29 pmChicago O'Hare Intl

20h 39m

1 stop

BOI11:08 amBoise Air Term. Gowen Fld

Apr 12

BOI12:03 pmBoise Air Term. Gowen Fld

24h 16m

1 stop

ORD1:19 pmChicago O'Hare Intl

$242

Frontier

Apr 8

ORD3:29 pmChicago O'Hare Intl

20h 39m

1 stop

BOI11:08 amBoise Air Term. Gowen Fld

Apr 12

BOI12:03 pmBoise Air Term. Gowen Fld

24h 16m

1 stop

ORD1:19 pmChicago O'Hare Intl

$261

Frontier

Apr 8

ORD3:29 pmChicago O'Hare Intl

20h 39m

1 stop

BOI11:08 amBoise Air Term. Gowen Fld

Apr 12

BOI12:03 pmBoise Air Term. Gowen Fld

24h 16m

1 stop

ORD1:19 pmChicago O'Hare Intl

$262

Alaska Airlines flights from Chicago to Idaho

Our best Alaska Airlines deals on Chicago to Idaho flight tickets

Alaska Airlines

May 2

ORD6:00 amChicago O'Hare Intl

7h 35m

1 stop

BOI12:35 pmBoise Air Term. Gowen Fld

May 9

BOI2:57 pmBoise Air Term. Gowen Fld

8h 02m

1 stop

ORD11:59 pmChicago O'Hare Intl

$265

Alaska Airlines

Apr 28

ORD3:52 pmChicago O'Hare Intl

8h 28m

1 stop

GEG10:20 pmSpokane

May 2

GEG2:45 pmSpokane

7h 14m

1 stop

ORD11:59 pmChicago O'Hare Intl

$286

Alaska Airlines

Apr 24

ORD5:52 pmChicago O'Hare Intl

7h 19m

1 stop

GEG11:11 pmSpokane

Apr 28

GEG6:00 amSpokane

8h 56m

1 stop

ORD4:56 pmChicago O'Hare Intl

$291

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Wed 5/27

7:45 am-1:45 pm

1 stop8h 00m

Spokane

Wed 6/3

5:10 am-1:55 pm

1 stop6h 45m

$221

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 4/8

3:29 pm-11:08 am

1 stop20h 39m

Boise Air Term. Gowen Fld

Sun 4/12

12:03 pm-1:19 pm

1 stop24h 16m

$242

Quickest round-trip

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Wed 5/27

11:30 am-2:20 pm

Nonstop3h 50m

Boise Air Term. Gowen Fld

Wed 6/3

3:11 pm-8:04 pm

Nonstop3h 53m

$251

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Tue 4/28

10:30 am-12:32 pm

Nonstop4h 02m

Spokane

Tue 5/5

1:22 pm-7:19 pm

Nonstop3h 57m

$251

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Sat 5/2

6:00 am-12:35 pm

1 stop7h 35m

Boise Air Term. Gowen Fld

Sat 5/9

2:57 pm-11:59 pm

1 stop8h 02m

$265

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Tue 4/28

3:52 pm-10:20 pm

1 stop8h 28m

Spokane

Sat 5/2

2:45 pm-11:59 pm

1 stop7h 14m

$286

ChicagoHailey

ORD - SUN

ORDSUN

Chicago O'Hare Intl

Tue 4/14

7:35 am-2:54 pm

1 stop8h 19m

Hailey Sun Valley-Friedman

Wed 4/15

12:42 pm-9:18 pm

1 stop7h 36m

$297

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Tue 6/9

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Sat 6/13

5:45 pm-12:44 am

1 stop5h 59m

$312

ChicagoWest Yellowstone

ORD - WYS

ORDWYS

Chicago O'Hare Intl

Mon 7/13

6:00 am-1:32 pm

1 stop8h 32m

West Yellowstone

Fri 7/17

5:45 pm-12:44 am

1 stop5h 59m

$328

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Sat 4/18

1:24 pm-10:33 pm

2 stops11h 09m

Spokane

Wed 4/22

10:40 pm-9:56 am

1 stop9h 16m

$331

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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, February 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 $272. If you don’t want to visit Idaho in February, then you should wait until October to fly from Chicago, when ticket prices are also cheap, with an average price of $300.

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 $520.

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 $391. 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 $465 per ticket.

What is the cheapest Chicago to Idaho flight route?

Fly from Chicago Midway to Boise Air Term. Gowen Fld 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 $424 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 $249 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	$259
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Idaho	27 airports

The best one-way flight to Idaho from Chicago in the past 72 hours is $259. The best round-trip flight deal from Chicago to Idaho found on momondo in the last 72 hours is $281.

The fastest flight from Chicago to Idaho takes 3h 10m

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), Boise Air Term. Gowen Fld (BOI).

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?
The number of operators available for flights from Chicago to Idaho is 5 as of March 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 39.58% of all bookings. The subsequent popular models are Embraer 175 at 15.57%, Airbus A319 at 10.29%, and Canadair (Bombardier) Regional Jet 700 at 8.71%.

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
Delta	PriceFrom $174	Free Cancellation	Rating 7.9 8,319 reviews	Search Delta flights
United Airlines	PriceFrom $237	Free Cancellation	Rating 7.4 9,461 reviews	Search United Airlines flights
Southwest	PriceFrom $254	Free Cancellation	Rating 8.0 4,324 reviews	Search Southwest flights
American Airlines	PriceFrom $255	Free Cancellation	Rating 7.1 11,489 reviews	Search American Airlines 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 $66

Flights to Los Angelesfrom $57

Flights to Orlandofrom $47

Flights to Miamifrom $53

Flights to Chicagofrom $66

Flights to San Franciscofrom $84

Flights to Las Vegasfrom $57

Flights to Washington, D.C.from $59

Flights to Bostonfrom $70

Flights to Atlantafrom $49

Flights to Dallasfrom $60

Flights to Seattlefrom $71

Cheap flights from Chicago to Idaho from $92

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 5/20. 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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Our best Frontier deals on Chicago to Idaho flight tickets

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See travel insights to Idaho from

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 to Idaho?

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

Can stopping save me money 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

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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