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Idaho

$72+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Chicago to Idaho

Keep the following information in mind while searching for Chicago to Idaho flight deals. Data was last updated September 15, 2025.

Round-trip from

$166
(Kiwi.com)

One-way from

$72
(Southwest)

Popular in

November

Cheapest in

September

Average price

$326

Good round-trip deal

$269 or less

Good one-way deal

$147 or less
From Chicago (CHI) to Idaho
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One-way flight from Chicago (CHI) to Idaho
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Highest demand for flights based on searches. 13% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Idaho.
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Price to beat on a one-way flight from Chicago (CHI) to Idaho.
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Find 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/256:00 amORD - BOI
1 stop8h 10mHawaiian Airlines
Mon 10/278:50 pmBOI - ORD
1 stop8h 32mHawaiian Airlines
Deal found 9/13$166
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/227:15 amORD - BOI
1 stop29h 28mFrontier
Thu 10/3012:33 pmBOI - ORD
1 stop11h 10mFrontier
Deal found 9/13$168
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:50 amORD - BOI
1 stop5h 53mFrontier
Thu 10/3012:33 pmBOI - ORD
1 stop11h 10mFrontier
Deal found 9/13$173
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 10/242:25 pmORD - BOI
1 stop8h 41mDelta
Tue 10/281:39 pmBOI - ORD
1 stop9h 19mDelta
Deal found 9/13$183
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/223:50 pmORD - BOI
1 stop8h 32mHawaiian Airlines
Tue 10/285:54 amBOI - ORD
1 stop6h 15mHawaiian Airlines
Deal found 9/13$185
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/226:00 amORD - BOI
1 stop8h 10mAlaska Airlines
Mon 10/278:50 pmBOI - ORD
1 stop8h 32mAlaska Airlines
Deal found 9/13$188
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:15 amORD - BOI
1 stop15h 16mSpirit Airlines
Fri 10/39:26 pmBOI - ORD
1 stop13h 25mSpirit Airlines
Deal found 9/13$189
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/233:50 pmORD - BOI
1 stop8h 32mHawaiian Airlines
Tue 10/285:54 amBOI - ORD
1 stop6h 15mHawaiian Airlines
Deal found 9/13$192
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Tue 10/143:50 pmORD - GEG
1 stop8h 51mHawaiian Airlines
Tue 10/217:00 amGEG - ORD
1 stop9h 59mHawaiian Airlines
Deal found 9/14$194
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 11/66:00 amORD - GEG
1 stop8h 26mAlaska Airlines
Mon 11/107:39 pmGEG - ORD
1 stop8h 43mAlaska Airlines
Deal found 9/13$195
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/226:00 amORD - BOI
1 stop8h 10mHawaiian Airlines
Wed 10/295:54 amBOI - ORD
1 stop6h 15mHawaiian Airlines
Deal found 9/13$197
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/236:00 amORD - BOI
1 stop8h 10mHawaiian Airlines
Sun 10/268:50 pmBOI - ORD
1 stop8h 32mHawaiian Airlines
Deal found 9/13$198

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 September 15, 2025.
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

Tue 3/3

7:30 am-4:26 pm

1 stop9h 56m

Boise Air Term. Gowen Fld

Wed 3/4

5:40 am-2:56 pm

1 stop8h 16m

$167

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Thu 11/6

6:00 am-12:26 pm

1 stop8h 26m

Spokane

Mon 11/10

7:39 pm-6:22 am

1 stop8h 43m

$195

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Tue 10/14

3:50 pm-10:41 pm

1 stop8h 51m

Spokane

Wed 10/29

7:00 am-6:59 pm

1 stop9h 59m

$214

ChicagoBoise

ORD - BOI

ORDBOI

Chicago O'Hare Intl

Tue 10/14

3:50 pm-11:22 pm

1 stop8h 32m

Boise Air Term. Gowen Fld

Tue 10/21

7:10 pm-2:50 pm

1 stop18h 40m

$214

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Sat 10/18

7:10 pm-11:54 pm

1 stop5h 44m

Boise Air Term. Gowen Fld

Sat 10/25

1:39 pm-10:14 pm

1 stop7h 35m

$215

ChicagoBoise

MDW - BOI

MDWBOI

Chicago Midway

Wed 11/12

9:41 am-2:04 pm

1 stop5h 23m

Boise Air Term. Gowen Fld

Sat 11/15

5:35 am-1:07 pm

1 stop6h 32m

$215

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Sat 10/25

3:00 pm-7:46 pm

1 stop6h 46m

Spokane

Sat 11/1

5:45 am-1:08 pm

1 stop5h 23m

$215

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Sat 10/25

9:20 am-1:05 pm

1 stop5h 45m

Spokane

Wed 10/29

5:45 am-1:08 pm

1 stop5h 23m

$215

ChicagoSpokane

MDW - GEG

MDWGEG

Chicago Midway

Sat 10/25

9:20 am-1:05 pm

1 stop5h 45m

Spokane

Tue 10/28

7:15 am-5:43 pm

2 stops8h 28m

$220

ChicagoSpokane

ORD - GEG

ORDGEG

Chicago O'Hare Intl

Wed 10/22

6:00 am-12:37 pm

1 stop8h 37m

Spokane

Sun 10/26

8:59 pm-6:22 am

1 stop7h 23m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
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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, October is the cheapest month in which you can book a flight from Chicago to Idaho (average of $314). Flying from Chicago to Idaho in June is currently the most expensive (average of $398). 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 September 15, 2025.

When flying from Chicago to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 15, 2025.

The most flights from CHI to USID are scheduled on a Friday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Chicago to Idaho?

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 September 15, 2025.
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
10,000 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,245 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,956 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,931 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 8h 26m. The distance between Chicago and Idaho is about 1493 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 Southwest. According to our data, you can fly for as low as $72. Users have also found prices from $84 and $97 on Delta and Hawaiian 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 Envoy Air (79%), United Airlines (75%) and Air Canada (71%).

  • What are the cheapest flights from Chicago to Idaho?

    Looking at all options, your cheapest flight can be booked for $117. While the most popular route (Chicago O'Hare Intl - Jackson Hole) can be booked for $259 on average, our data indicates $268 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, October is the cheapest month in which you can book a flight from Chicago to Idaho (average of $314). Flying from Chicago to Idaho in June is currently the most expensive (average of $398). 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.

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Alternative routes for Chicago to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$336FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$362FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$239Average$348FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$263Average$555FlexibilityNo cancel feeOn-time69%

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