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$65+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:03 pmGEG - ORD
1 stop10h 12mFrontier
Sun 11/166:00 amORD - GEG
1 stop7h 08mFrontier
Deal found 10/28$162
This Expedia deal was found by Cheapflights users on 10/28. 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.
Tue 12/21:33 pmGEG - ORD
1 stop8h 26mMultiple Airlines
Thu 12/47:00 amORD - GEG
1 stop6h 13mMultiple Airlines
Deal found 10/28$177
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:30 amGEG - ORD
1 stop9h 36mMultiple Airlines
Thu 12/47:00 amORD - GEG
1 stop6h 13mMultiple Airlines
Deal found 10/29$194
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:33 pmGEG - ORD
1 stop6h 57mMultiple Airlines
Sun 12/77:00 amORD - GEG
1 stop6h 13mMultiple Airlines
Deal found 10/29$226
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 12/79:00 amGEG - ORD
1 stop11h 30mAlaska Airlines
Sat 12/133:05 pmORD - GEG
1 stop10h 54mAlaska Airlines
Deal found 10/29$231
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:03 pmGEG - ORD
1 stop10h 12mMultiple Airlines
Mon 11/176:00 amORD - GEG
1 stop7h 02mMultiple Airlines
Deal found 10/29$235
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 12/49:00 amGEG - ORD
1 stop11h 30mAlaska Airlines
Mon 12/83:05 pmORD - GEG
1 stop10h 54mAlaska Airlines
Deal found 10/29$242
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/65:51 amGEG - ORD
1 stop6h 48mAlaska Airlines
Sat 12/65:51 pmORD - GEG
1 stop8h 33mAlaska Airlines
Deal found 10/29$243
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:05 amGEG - ORD
1 stop6h 14mUnited Airlines
Sat 1/38:08 pmORD - GEG
Nonstop4h 22mUnited Airlines
Deal found 10/28$245
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:14 pmGEG - ORD
Nonstop4h 03mAmerican Airlines
Sat 12/1310:25 amORD - GEG
Nonstop4h 05mAmerican Airlines
Deal found 10/29$246
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:39 pmIDA - ORD
1 stop18h 03mMultiple Airlines
Mon 12/157:00 amORD - IDA
2 stops31h 36mMultiple Airlines
Deal found 10/30$251
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Sun 12/71:14 pmGEG - ORD
Nonstop4h 03mAmerican Airlines
Sat 12/1310:25 amORD - GEG
Nonstop4h 05mAmerican Airlines
Deal found 10/30$252

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$177
(Expedia)

One-way from

$65
(Frontier)

Popular in

December

Cheapest in

February

Average price

$407

Good round-trip deal

$352 or less

Good one-way deal

$240 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Chicago (CHI) flights.
Search Deals
From Idaho to Chicago (CHI)
Search Deals
One-way flight from Idaho to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Idaho to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Idaho to Chicago (CHI).
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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 October 30, 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

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Tue 3/3

7:20 pm-5:04 am

1 stop7h 44m

Chicago O'Hare Intl

Wed 3/4

7:45 am-12:50 pm

1 stop7h 05m

$209

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Thu 1/15

12:28 pm-8:05 pm

1 stop29h 37m

Chicago Midway

Sat 1/24

6:00 am-11:28 am

2 stops31h 28m

$212

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Tue 12/2

1:33 pm-11:59 pm

1 stop8h 26m

Chicago O'Hare Intl

Fri 12/5

3:35 pm-11:14 pm

1 stop9h 39m

$231

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sun 12/7

9:00 am-10:30 pm

1 stop11h 30m

Chicago O'Hare Intl

Sat 12/13

3:05 pm-11:59 pm

1 stop10h 54m

$231

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Wed 12/24

5:05 am-2:55 pm

1 stop7h 50m

Chicago O'Hare Intl

Sat 12/27

8:08 pm-10:30 pm

Nonstop4h 22m

$245

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Mon 12/8

1:14 pm-7:17 pm

Nonstop4h 03m

Chicago O'Hare Intl

Sat 12/13

10:25 am-12:30 pm

Nonstop4h 05m

$246

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sun 12/7

1:14 pm-7:17 pm

Nonstop4h 03m

Chicago O'Hare Intl

Sat 12/13

10:25 am-12:30 pm

Nonstop4h 05m

$252

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Wed 1/14

12:55 pm-10:09 pm

1 stop7h 14m

Chicago Midway

Sat 1/24

6:00 am-11:45 am

1 stop7h 45m

$255

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Sat 1/17

10:15 am-8:30 pm

1 stop8h 15m

Chicago Midway

Sat 1/24

5:10 am-12:25 pm

1 stop9h 15m

$255

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Thu 12/25

1:47 pm-11:59 pm

1 stop8h 12m

Chicago O'Hare Intl

Sat 1/3

8:08 pm-10:30 pm

Nonstop4h 22m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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, May is the cheapest month in which you can book a flight from Idaho to Chicago (average of $87). Flying from Idaho to Chicago in November is currently the most expensive (average of $274). 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 October 30, 2025.

When flying from Idaho to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 23% versus a flight in the morning.

What is the cheapest day to fly from Idaho to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Chicago. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Idaho to Chicago flight should consider departing on Monday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

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.

  • How long is the flight from Idaho to Chicago?

    A quick flight from Idaho to Chicago can take about 7h 44m. Hawaiian Airlines provides one of the quickest options available for as low as $209. The distance from Idaho to Chicago is about 1493 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Frontier. Other airlines that offer cheap prices include Alaska Airlines from $107 and Southwest from $128 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 Jackson Hole - Chicago O'Hare Intl.

  • 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 (97%), Lufthansa (83%), Emirates( 77%).

  • What are the cheapest flights from Idaho to Chicago?

    Looking for the cheapest flight from Idaho to Chicago? While on average our users pay $919, our data indicates the cheapest price to be $119. The most popular route (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), is priced around $214.

  • 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, May is the cheapest month in which you can book a flight from Idaho to Chicago (average of $87). Flying from Idaho to Chicago in November is currently the most expensive (average of $274). 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
Porter
Benton Harbor

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$276FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$217Average$353FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$233Average$393FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$233Average$501FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$255Average$396FlexibilityNo cancel feeOn-time71%

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