HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$92+ Cheap flights from Chicago (CHI) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
févr. 28 — mars 71
sam. 2/28
sam. 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Chicago to Idaho

Cheapest flights from Chicago to Idaho
Explore the most affordable flight options available from Chicago to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 29, 2026.

This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/245:29 pm
ORD
-
GEG
1 stop8h 30m
Multiple Airlines
jeu. 2/2612:22 pm
GEG
-
ORD
1 stop8h 52m
Multiple Airlines
Deal found 1/27$193
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/1811:51 am
ORD
-
BOI
2 stops25h 00m
Frontier
jeu. 3/512:38 pm
BOI
-
ORD
1 stop9h 36m
Frontier
Deal found 1/27$223
This Travelocity deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/257:00 am
ORD
-
BOI
1 stop8h 58m
Alaska Airlines
mer. 3/45:40 am
BOI
-
ORD
1 stop6h 31m
Alaska Airlines
Deal found 1/28$229
This Expedia deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/178:20 am
ORD
-
BOI
1 stop16h 10m
Multiple Airlines
jeu. 2/1912:36 pm
BOI
-
ORD
1 stop9h 38m
Multiple Airlines
Deal found 1/28$230
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/26:00 am
ORD
-
BOI
1 stop11h 47m
Multiple Airlines
jeu. 3/512:38 pm
BOI
-
ORD
1 stop9h 36m
Multiple Airlines
Deal found 1/27$232
This Alaska Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 3/45:29 pm
ORD
-
GEG
1 stop8h 30m
Alaska Airlines
mer. 3/115:40 am
GEG
-
ORD
1 stop6h 31m
Alaska Airlines
Deal found 1/28$235
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/1811:51 am
ORD
-
BOI
2 stops25h 00m
Multiple Airlines
lun. 3/25:37 pm
BOI
-
ORD
1 stop23h 31m
Multiple Airlines
Deal found 1/27$243
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/1811:51 am
ORD
-
BOI
2 stops25h 00m
Multiple Airlines
ven. 2/275:37 pm
BOI
-
ORD
1 stop22h 16m
Multiple Airlines
Deal found 1/27$247
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/29:55 am
ORD
-
BOI
Nonstop3h 43m
American Airlines
mar. 5/51:29 pm
BOI
-
ORD
Nonstop3h 34m
American Airlines
Deal found 1/27$249
This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 3/65:29 pm
ORD
-
GEG
1 stop7h 32m
Alaska Airlines
lun. 3/912:00 pm
GEG
-
ORD
1 stop9h 56m
Alaska Airlines
Deal found 1/27$249
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/87:15 am
ORD
-
WYS
1 stop6h 06m
Delta
ven. 7/171:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 1/28$253
This CheapOair deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/124:16 pm
ORD
-
BOI
1 stop19h 55m
Frontier
jeu. 2/1912:36 pm
BOI
-
ORD
1 stop9h 38m
Frontier
Deal found 1/27$256

Find flight deals from Chicago to Idaho

Keep the following information in mind while searching for Chicago to Idaho flight deals. Data was last updated janvier 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$193
(Expedia)

One-way from

$92
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$383

Good round-trip deal

$326 or less

Good one-way deal

$245 or less
Provider with most accurate pricing for Chicago (CHI)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Boise Air Term. Gowen Fld flights.
Search Deals
From Chicago (CHI) to Idaho
Search Deals
One-way flight from Chicago (CHI) to Idaho
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Idaho.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Idaho.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated janvier 29, 2026.
Use the filters below to find and compare flights from Chicago to Idaho that are best for you.

Fly from

Chicago

Fly to

Idaho

Route

Depart

Return

Price

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

lun. 5/4

7:59 pm-12:32 pm

1 stop17h 33m

Boise Air Term. Gowen Fld

mer. 5/6

2:57 pm-11:59 pm

1 stop8h 02m

$249

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

sam. 2/28

9:15 am-12:33 pm

Nonstop4h 18m

Boise Air Term. Gowen Fld

sam. 3/7

2:40 pm-10:55 pm

1 stop7h 15m

$259

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

mer. 3/4

9:15 am-12:33 pm

Nonstop4h 18m

Boise Air Term. Gowen Fld

mar. 3/10

5:31 pm-11:52 pm

1 stop5h 21m

$259

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

sam. 4/18

8:40 am-11:49 am

Nonstop4h 09m

Boise Air Term. Gowen Fld

sam. 4/25

2:37 pm-10:58 pm

1 stop7h 21m

$259

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

lun. 3/9

7:40 pm-10:56 pm

Nonstop4h 16m

Boise Air Term. Gowen Fld

mer. 3/18

5:00 am-11:19 am

1 stop5h 19m

$259

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

sam. 2/28

2:40 pm-9:17 pm

1 stop8h 37m

Spokane

mar. 3/3

7:00 am-12:50 pm

Nonstop3h 50m

$265

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

mer. 4/15

2:12 pm-9:01 pm

1 stop7h 49m

Boise Air Term. Gowen Fld

dim. 4/19

5:34 am-1:32 pm

1 stop6h 58m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

mer. 2/18

5:35 pm-11:10 pm

1 stop6h 35m

Boise Air Term. Gowen Fld

mar. 3/3

7:45 am-4:45 pm

1 stop8h 00m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

lun. 3/9

9:30 am-2:04 pm

1 stop5h 34m

Boise Air Term. Gowen Fld

mer. 3/18

11:30 pm-9:56 am

1 stop9h 26m

$269

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

jeu. 3/12

5:40 am-10:30 am

1 stop5h 50m

Boise Air Term. Gowen Fld

lun. 3/16

8:15 pm-5:45 am

1 stop8h 30m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Chicago to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Idaho

What is the cheapest month to book a flight from Chicago to Idaho?

Currently, July is the cheapest month in which you can book a flight from Chicago to Idaho (average of $149). Flying from Chicago to Idaho in December is currently the most expensive (average of $288). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to ID?

Find hourly flight availability from Chicago to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated janvier 29, 2026.

It’s typically best to fly out from Chicago to Idaho at noon. Doing so could potentially save you 19% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Chicago to Idaho

Explore weekly flight availability from Chicago to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated janvier 29, 2026.

The most flights from CHI to USID are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated janvier 29, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Chicago to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,128 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,205 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Chicago to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Idaho?

    Departing from Chicago to Idaho will take you 4h 18m. The distance between Chicago and Idaho is about 1432 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Chicago to Idaho one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $87. Users have also found prices from $127 and $137 on United Airlines and Alaska Airlines, respectively.

  • What are the most popular routes from Chicago to Idaho?

    The most popular flight routes from Chicago to Idaho are Chicago O'Hare Intl - Jackson Hole, Chicago O'Hare Intl - Boise Air Term. Gowen Fld and Chicago O'Hare Intl - Spokane.

  • What are the most reliable airlines from Chicago to Idaho?

    The top 3 most reliable airlines when flying from Chicago to Idaho are Lufthansa (100%), Air Canada (69%) and United Airlines (62%).

  • What are the cheapest flights from Chicago to Idaho?

    Looking at all options, your cheapest flight can be booked for $253. While the most popular route (Chicago O'Hare Intl - Jackson Hole) can be booked for $311 on average, our data indicates $427 when flying from Chicago to Idaho.

  • Can I find deals for flights from Chicago to Idaho that include hotel bookings?

    Yes. In addition to deals on Chicago to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Idaho.

  • Can I find deals for business class flights from Chicago to Idaho?

    Yes. Cheapflights offers flight deals from Chicago to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Idaho?

    Currently, July is the cheapest month in which you can book a flight from Chicago to Idaho (average of $149). Flying from Chicago to Idaho in December is currently the most expensive (average of $288). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Las Vegas flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Miami flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Orlando flights
O'Hare Intl to Denver flights
O'Hare Intl to San Francisco flights
O'Hare Intl to Tampa flights
O'Hare Intl to LaGuardia flights
Midway to Dallas/Fort Worth flights
O'Hare Intl to Fort Myers flights
O'Hare Intl to Newark flights
Midway to Fort Lauderdale flights
Midway to Sky Harbor Intl flights
Midway to Las Vegas flights
Midway to Miami flights
O'Hare Intl to Seattle flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Atlanta flights
O'Hare Intl to West Palm Beach flights
O'Hare Intl to Sarasota flights
Midway to Orlando flights
O'Hare Intl to San Diego flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Austin flights
O'Hare Intl to New Orleans flights
O'Hare Intl to Hobby flights
Midway to Los Angeles flights
O'Hare Intl to Salt Lake City flights
O'Hare Intl to Nashville flights
O'Hare Intl to Baltimore flights
O'Hare Intl to Ontario flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Boston flights
O'Hare Intl to George Bush Intcntl flights
St. Louis to Las Vegas flights
O'Hare Intl to Honolulu flights
Midway to John F Kennedy Intl flights
Midway to Tampa flights
St. Louis to Orlando flights
Midway to Hobby flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Love Field flights
O'Hare Intl to Key West flights
O'Hare Intl to Palm Springs flights
Midway to Newark flights
Midway to Fort Myers flights

Top 4 airlines flying from Chicago to Idaho

Discover the top 4 airlines that operate flights from Chicago to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated janvier 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$325FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$380FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$437FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$254Average$339FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.