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$80+ Cheap flights from Idaho to Chicago (CHI)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Idaho to Chicago

Keep the following information in mind while searching for Idaho to Chicago flight deals. Data was last updated July 31, 2025.

Round-trip from

$191
(American Airlines)

One-way from

$80
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$431

Good round-trip deal

$320 or less

Good one-way deal

$185 or less
From Idaho to Chicago (CHI)
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One-way flight from Idaho to Chicago (CHI)
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Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Idaho to Chicago (CHI).
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Price to beat on a one-way flight from Idaho to Chicago (CHI).
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Find flight deals from Idaho to Chicago

Cheapest flights from Idaho to Chicago
Explore the most affordable flight options available from Idaho to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/53:25 pmJAC - ORD
Nonstop3h 15mAmerican Airlines
Mon 9/81:15 pmORD - JAC
Nonstop3h 13mAmerican Airlines
Deal found 7/28$191
This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/61:40 pmGEG - ORD
1 stop8h 23mHawaiian Airlines
Sat 9/135:45 pmORD - GEG
1 stop8h 34mHawaiian Airlines
Deal found 7/29$194
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/131:18 pmGEG - ORD
1 stop8h 41mDelta
Tue 9/237:55 amORD - GEG
1 stop6h 00mDelta
Deal found 7/29$195
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 11/51:14 pmGEG - ORD
Nonstop3h 58mAmerican Airlines
Sat 11/1510:30 amORD - GEG
Nonstop4h 02mAmerican Airlines
Deal found 7/30$197
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/66:50 amGEG - MDW
2 stops12h 22mDelta
Sat 9/139:20 amMDW - GEG
1 stop5h 57mDelta
Deal found 7/29$200
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 9/133:26 pmGEG - ORD
1 stop6h 37mAlaska Airlines
Thu 9/188:00 amORD - GEG
1 stop6h 46mAlaska Airlines
Deal found 7/29$204
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:15 amGEG - MDW
1 stop7h 50mSouthwest
Wed 9/33:50 pmMDW - GEG
1 stop8h 40mSouthwest
Deal found 7/28$215
This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 8/205:45 amBOI - ORD
2 stops11h 22mDelta
Sat 8/237:15 amORD - BOI
1 stop6h 51mDelta
Deal found 7/30$222
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 10/117:13 amBOI - ORD
1 stop15h 46mAlaska Airlines
Thu 10/166:00 amORD - BOI
1 stop8h 10mAlaska Airlines
Deal found 7/30$224
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 9/2611:35 pmBOI - MDW
1 stop9h 13mDelta
Tue 9/306:00 amMDW - BOI
1 stop7h 30mDelta
Deal found 7/28$225
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:26 pmBOI - ORD
1 stop13h 25mSpirit Airlines
Mon 10/69:00 amORD - BOI
1 stop12h 31mSpirit Airlines
Deal found 7/30$227
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/54:20 pmJAC - ORD
1 stop5h 22mUnited Airlines
Wed 9/102:53 pmORD - JAC
1 stop6h 46mUnited Airlines
Deal found 7/29$230

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Chicago 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 July 31, 2025.
Use the filters below to find and compare flights from Idaho to Chicago that are best for you.

Fly from

Idaho

Fly to

Chicago

Route

Depart

Return

Price

JacksonChicago

JAC - ORD

JACORD

Jackson Hole

Fri 9/5

3:25 pm-7:40 pm

Nonstop3h 15m

Chicago O'Hare Intl

Mon 9/8

1:15 pm-3:28 pm

Nonstop3h 13m

$191

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 9/6

1:40 pm-12:03 am

1 stop8h 23m

Chicago O'Hare Intl

Sat 9/13

5:45 pm-12:19 am

1 stop8h 34m

$194

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 9/13

1:18 pm-11:59 pm

1 stop8h 41m

Chicago O'Hare Intl

Tue 9/23

7:55 am-11:55 am

1 stop6h 00m

$195

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Sat 9/6

6:50 am-9:12 pm

2 stops12h 22m

Chicago Midway

Sat 9/13

9:20 am-1:17 pm

1 stop5h 57m

$200

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 9/13

3:26 pm-12:03 am

1 stop6h 37m

Chicago O'Hare Intl

Thu 9/18

8:00 am-12:46 pm

1 stop6h 46m

$204

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Wed 8/27

6:15 am-4:05 pm

1 stop7h 50m

Chicago Midway

Wed 9/3

3:50 pm-10:30 pm

1 stop8h 40m

$215

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 8/30

12:14 pm-5:55 pm

Nonstop3h 41m

Chicago O'Hare Intl

Sun 8/31

10:30 am-12:22 pm

Nonstop3h 52m

$216

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Wed 8/20

5:45 am-6:07 pm

2 stops11h 22m

Chicago O'Hare Intl

Sat 8/23

7:15 am-1:06 pm

1 stop6h 51m

$222

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Sat 10/11

7:13 am-11:59 pm

1 stop15h 46m

Chicago O'Hare Intl

Thu 10/16

6:00 am-1:10 pm

1 stop8h 10m

$224

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Fri 9/26

11:35 pm-9:48 am

1 stop9h 13m

Chicago Midway

Tue 9/30

6:00 am-12:30 pm

1 stop7h 30m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Idaho 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 Idaho to Chicago

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

Currently, August is the cheapest month in which you can book a flight from Idaho to Chicago (average of $245). Flying from Idaho to Chicago in March is currently the most expensive (average of $321). 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 ID to CHI?

Find hourly flight availability from Idaho to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Idaho to Chicago, 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 Idaho to Chicago

Explore weekly flight availability from Idaho to Chicago. 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 July 31, 2025.

The most flights from USID to CHI are scheduled on a Thursday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Idaho to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

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

    One-way options have recently been found by users for as low as $80 on Spirit Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $90 and Delta from $98 one-way.

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

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

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

    Before booking your flight to Chicago from Idaho, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (96%), Air Canada (84%), Lufthansa( 84%).

  • What are the cheapest flights from Idaho to Chicago?

    Looking for the cheapest flight from Idaho to Chicago? While on average our users pay $1,316, our data indicates the cheapest price to be $158. The most popular route (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), is priced around $183.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Chicago 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 Idaho to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Idaho to Chicago (average of $245). Flying from Idaho to Chicago in March is currently the most expensive (average of $321). 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

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Valparaiso
Chesterton

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Alternative routes for Idaho to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Idaho to Chicago

Discover the top 5 airlines that operate flights from Idaho to Chicago. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$367FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$217Average$327FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$233Average$386FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$236Average$377FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$239Average$574FlexibilityNo cancel feeOn-time69%

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