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$78+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$174
(Hawaiian Airlines)

One-way from

$78
(Southwest)

Popular in

December

Cheapest in

January

Average price

$401

Good round-trip deal

$415 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Chicago (CHI) flights.
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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. 0% potential increase in price ($1 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 April 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 April 2, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/236:30 amBOI - ORD
1 stop9h 30mHawaiian Airlines
Sat 4/266:00 amORD - BOI
1 stop7h 16mHawaiian Airlines
Deal found 3/31$174
This Delta deal was found by Cheapflights users on 3/31. 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.
Thu 5/12:20 pmBOI - ORD
1 stop8h 39mDelta
Fri 5/22:15 pmORD - BOI
1 stop8h 46mDelta
Deal found 3/31$195
This United Airlines deal was found by Cheapflights users on 3/31. 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 9/1212:29 pmBOI - ORD
Nonstop3h 26mUnited Airlines
Tue 9/165:00 amORD - BOI
1 stop5h 43mUnited Airlines
Deal found 3/31$201
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Sun 4/202:47 pmBOI - ORD
1 stop8h 12mAlaska Airlines
Thu 4/2411:00 amORD - BOI
1 stop6h 55mAlaska Airlines
Deal found 4/1$210
This Delta deal was found by Cheapflights users on 4/1. 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 5/27:25 pmGEG - MDW
2 stops12h 15mDelta
Tue 5/63:02 pmMDW - GEG
2 stops10h 42mDelta
Deal found 4/1$216
This Delta deal was found by Cheapflights users on 4/1. 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 5/27:25 pmGEG - ORD
2 stops10h 54mDelta
Tue 5/66:35 amORD - GEG
2 stops10h 19mDelta
Deal found 4/1$216
This Orbitz deal was found by Cheapflights users on 3/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/62:41 pmBOI - ORD
1 stop6h 18mMultiple Airlines
Thu 5/89:02 pmORD - BOI
1 stop15h 19mMultiple Airlines
Deal found 3/30$217
This Southwest deal was found by Cheapflights users on 4/1. 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.
Fri 10/175:40 amGEG - ORD
1 stop6h 20mSouthwest
Mon 10/276:55 pmORD - GEG
1 stop6h 55mSouthwest
Deal found 4/1$229
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Thu 8/141:17 pmBOI - ORD
Nonstop3h 37mAmerican Airlines
Mon 8/185:00 amORD - BOI
1 stop9h 14mAmerican Airlines
Deal found 4/1$230
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 9/411:21 amGEG - ORD
Nonstop3h 43mUnited Airlines
Mon 9/89:15 amORD - GEG
Nonstop4h 12mUnited Airlines
Deal found 3/31$232
This Southwest deal was found by Cheapflights users on 3/31. 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.
Fri 6/1311:50 amGEG - MDW
1 stop10h 40mSouthwest
Sun 6/152:00 pmMDW - GEG
Nonstop3h 55mSouthwest
Deal found 3/31$238
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/81:50 pmBOI - MDW
1 stop9h 05mSouthwest
Sun 5/115:45 amMDW - BOI
1 stop5h 25mSouthwest
Deal found 3/30$240

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 April 2, 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

Wed 4/23

6:30 am-5:00 pm

1 stop9h 30m

Chicago O'Hare Intl

Sat 4/26

6:00 am-12:16 pm

1 stop7h 16m

$174

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Thu 5/1

2:20 pm-11:59 pm

1 stop8h 39m

Chicago O'Hare Intl

Fri 5/2

2:15 pm-10:01 pm

1 stop8h 46m

$195

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Sun 4/20

2:47 pm-11:59 pm

1 stop8h 12m

Chicago O'Hare Intl

Thu 4/24

11:00 am-4:55 pm

1 stop6h 55m

$210

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Fri 5/2

7:25 pm-9:40 am

2 stops12h 15m

Chicago Midway

Tue 5/6

3:02 pm-11:44 pm

2 stops10h 42m

$216

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Fri 5/2

7:25 pm-8:19 am

2 stops10h 54m

Chicago O'Hare Intl

Tue 5/6

6:35 am-2:54 pm

2 stops10h 19m

$216

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 5/6

2:41 pm-9:59 pm

1 stop6h 18m

Chicago O'Hare Intl

Thu 5/8

9:02 pm-11:21 am

1 stop15h 19m

$217

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 4/15

12:06 pm-5:03 pm

Nonstop3h 57m

Chicago O'Hare Intl

Fri 4/18

7:35 pm-10:49 pm

Nonstop4h 14m

$227

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Thu 9/4

11:21 am-5:04 pm

Nonstop3h 43m

Chicago O'Hare Intl

Mon 9/8

9:15 am-11:27 am

Nonstop4h 12m

$232

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Fri 6/13

11:50 am-12:30 am

1 stop10h 40m

Chicago Midway

Sun 6/15

2:00 pm-3:55 pm

Nonstop3h 55m

$238

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Thu 5/8

1:50 pm-11:55 pm

1 stop9h 05m

Chicago Midway

Sun 5/11

5:45 am-10:10 am

1 stop5h 25m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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 $323). 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 April 2, 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 April 2, 2025.

The most flights from USID to CHI are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 April 2, 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
9,820 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,820 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,898 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,345 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $78 on Southwest. Other airlines that offer cheap prices include American Airlines from $78 and United Airlines from $83 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: Lufthansa (94%), SkyWest Airlines (94%), Air Canada( 94%).

  • What are the cheapest flights from Idaho to Chicago?

    Looking for the cheapest flight from Idaho to Chicago? While on average our users pay $1,322, our data indicates the cheapest price to be $155. The most popular route (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), is priced around $155.

  • 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 $323). 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
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
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 6 airlines flying from Idaho to Chicago

Discover the top 6 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$128Average$267FlexibilityNo cancel feeOn-time65%
DeltaCheapest$185Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$217Average$353FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$236Average$423FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$258Average$416FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$272Average$584FlexibilityNo cancel feeOn-time69%

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