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$91+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$191
(Cheapflightsfares)

One-way from

$91
(Delta)

Popular in

December

Cheapest in

January

Average price

$372

Good round-trip deal

$348 or less

Good one-way deal

$179 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 ($16 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 June 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 junio 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
jue. 10/29:49 pmBOI - ORD
1 stop15h 27mSpirit Airlines
lun. 10/66:00 amORD - BOI
1 stop15h 44mSpirit Airlines
Deal found 6/11$189
This Delta deal was found by Cheapflights users on 6/10. 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.
vie. 10/311:30 pmBOI - ORD
1 stop8h 04mDelta
sáb. 10/117:30 amORD - BOI
1 stop9h 59mDelta
Deal found 6/10$195
This Delta deal was found by Cheapflights users on 6/11. 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.
mar. 7/223:38 pmGEG - ORD
1 stop6h 18mDelta
mar. 8/127:15 amORD - GEG
1 stop9h 30mDelta
Deal found 6/11$198
This Delta deal was found by Cheapflights users on 6/10. 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.
sáb. 7/125:40 amBOI - MDW
1 stop6h 26mDelta
sáb. 7/199:25 amMDW - BOI
2 stops8h 40mDelta
Deal found 6/10$200
This Delta deal was found by Cheapflights users on 6/10. 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.
vie. 7/1111:09 pmGEG - MDW
1 stop8h 36mDelta
lun. 7/149:24 amMDW - GEG
1 stop5h 53mDelta
Deal found 6/10$205
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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.
sáb. 9/61:40 pmGEG - ORD
1 stop6h 24mAlaska Airlines
sáb. 9/132:07 pmORD - GEG
1 stop11h 04mAlaska Airlines
Deal found 6/12$214
This Southwest deal was found by Cheapflights users on 6/11. 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.
sáb. 8/1612:10 pmGEG - MDW
1 stop7h 10mSouthwest
mié. 8/208:40 amMDW - GEG
1 stop7h 30mSouthwest
Deal found 6/11$218
This American Airlines deal was found by Cheapflights users on 6/12. 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.
sáb. 10/251:15 pmJAC - ORD
Nonstop3h 07mAmerican Airlines
mié. 10/2910:15 amORD - JAC
Nonstop3h 13mAmerican Airlines
Deal found 6/12$229
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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.
mar. 8/54:00 pmBOI - ORD
1 stop6h 39mHawaiian Airlines
mié. 8/66:00 amORD - BOI
1 stop10h 04mHawaiian Airlines
Deal found 6/11$229
This American Airlines deal was found by Cheapflights users on 6/12. 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.
sáb. 9/61:30 pmGEG - ORD
Nonstop3h 48mAmerican Airlines
sáb. 9/1310:46 amORD - GEG
Nonstop3h 58mAmerican Airlines
Deal found 6/12$235
This United Airlines deal was found by Cheapflights users on 6/12. 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.
sáb. 9/61:38 pmGEG - ORD
1 stop5h 54mUnited Airlines
sáb. 9/139:15 amORD - GEG
Nonstop4h 12mUnited Airlines
Deal found 6/12$245
This United Airlines deal was found by Cheapflights users on 6/12. 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.
sáb. 10/255:56 pmJAC - ORD
1 stop5h 03mUnited Airlines
mié. 10/291:55 pmORD - JAC
1 stop7h 42mUnited Airlines
Deal found 6/12$249

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 junio 12, 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

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

sáb. 9/6

9:49 pm-2:16 pm

1 stop15h 27m

Chicago O'Hare Intl

sáb. 9/13

6:00 am-8:44 pm

1 stop15h 44m

$191

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

mar. 7/15

4:20 pm-11:56 pm

1 stop6h 36m

Chicago O'Hare Intl

mar. 7/22

7:20 pm-12:09 am

1 stop5h 49m

$195

SpokaneChicago

GEG - ORD

GEGORD

Spokane

mar. 7/22

3:38 pm-11:56 pm

1 stop6h 18m

Chicago O'Hare Intl

mar. 8/12

7:15 am-2:45 pm

1 stop9h 30m

$198

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

sáb. 7/12

5:40 am-1:06 pm

1 stop6h 26m

Chicago Midway

sáb. 7/19

9:25 am-5:05 pm

2 stops8h 40m

$200

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

vie. 7/11

11:09 pm-9:45 am

1 stop8h 36m

Chicago Midway

lun. 7/14

9:24 am-1:17 pm

1 stop5h 53m

$205

SpokaneChicago

GEG - ORD

GEGORD

Spokane

sáb. 9/6

1:40 pm-10:04 pm

1 stop6h 24m

Chicago O'Hare Intl

sáb. 9/13

7:00 am-11:44 am

1 stop6h 44m

$214

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

sáb. 8/16

12:10 pm-9:20 pm

1 stop7h 10m

Chicago Midway

mié. 8/20

8:40 am-2:10 pm

1 stop7h 30m

$218

JacksonChicago

JAC - ORD

JACORD

Jackson Hole

sáb. 10/25

1:15 pm-5:22 pm

Nonstop3h 07m

Chicago O'Hare Intl

mié. 10/29

10:15 am-12:28 pm

Nonstop3h 13m

$229

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

mar. 8/5

4:00 pm-11:39 pm

1 stop6h 39m

Chicago O'Hare Intl

mié. 8/6

6:00 am-3:04 pm

1 stop10h 04m

$229

SpokaneChicago

GEG - ORD

GEGORD

Spokane

sáb. 9/6

1:30 pm-7:18 pm

Nonstop3h 48m

Chicago O'Hare Intl

sáb. 9/13

10:46 am-12:44 pm

Nonstop3h 58m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 junio 12, 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 junio 12, 2025.

The most flights from USID to CHI are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 junio 12, 2025.
To help decide which airline to fly from Idaho to Chicago, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $91 on Delta. Other airlines that offer cheap prices include Spirit Airlines from $95 and Southwest from $96 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 Spokane - 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 (92%), Air Canada (91%), Lufthansa( 91%).

  • What are the cheapest flights from Idaho to Chicago?

    Looking for the cheapest flight from Idaho to Chicago? While on average our users pay $1,292, our data indicates the cheapest price to be $167. The most popular route (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), is priced around $189.

  • 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 Idaho?

Book flights to Idaho if you plan to visit one of these locations
Merrillville
Lansing
Benton Harbor
Porter
Hammond
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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$355FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$196Average$434FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$217Average$327FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$248Average$568FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$258Average$368FlexibilityNo cancel feeOn-time63%

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