Chicago

$74+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Oct 15 — Oct 221
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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 September 15, 2025.

Round-trip from

$183
(Delta)

One-way from

$74
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$345

Good round-trip deal

$351 or less

Good one-way deal

$187 or less
From Idaho to Chicago (CHI)
One-way flight from Idaho to Chicago (CHI)
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Idaho to Chicago (CHI).
Price to beat on a one-way flight from Idaho to Chicago (CHI).

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 September 15, 2025.

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.
Wed 10/83:37 pmGEG - ORD
1 stop6h 13mDelta
Wed 10/156:05 pmORD - GEG
1 stop7h 54mDelta
Deal found 9/13$183
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 11/1911:25 amGEG - ORD
Nonstop3h 37mUnited Airlines
Mon 11/249:15 amORD - GEG
Nonstop4h 16mUnited Airlines
Deal found 9/12$190
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.
Mon 10/278:59 pmGEG - ORD
1 stop7h 23mAlaska Airlines
Mon 11/36:00 amORD - GEG
1 stop8h 26mAlaska Airlines
Deal found 9/13$195
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:25 amGEG - MDW
1 stop6h 50mSouthwest
Mon 11/246:35 pmMDW - GEG
1 stop7h 20mSouthwest
Deal found 9/12$199
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.
Mon 10/271:10 pmGEG - ORD
1 stop6h 33mDelta
Tue 11/48:57 amORD - GEG
1 stop6h 08mDelta
Deal found 9/13$199
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:03 pmGEG - ORD
1 stop10h 12mFrontier
Sun 11/96:00 amORD - GEG
1 stop7h 08mFrontier
Deal found 9/14$204
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:00 amGEG - ORD
2 stops8h 28mDelta
Mon 11/241:38 pmORD - GEG
2 stops9h 23mDelta
Deal found 9/12$209
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.
Sat 10/1811:46 amGEG - ORD
1 stop7h 04mHawaiian Airlines
Sat 10/256:00 amORD - GEG
1 stop8h 37mHawaiian Airlines
Deal found 9/14$211
This Hawaiian Airlines 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:47 pmGEG - ORD
1 stop8h 34mHawaiian Airlines
Tue 12/95:51 pmORD - GEG
1 stop7h 19mHawaiian Airlines
Deal found 9/14$214
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:45 amGEG - MDW
1 stop5h 23mDelta
Sat 10/259:20 amMDW - GEG
1 stop5h 45mDelta
Deal found 9/14$215
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.
Sat 10/187:15 amGEG - ORD
1 stop8h 03mDelta
Sat 10/257:37 amORD - GEG
1 stop9h 20mDelta
Deal found 9/13$215
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/181:12 pmGEG - ORD
Nonstop3h 52mAmerican Airlines
Sat 10/2510:30 amORD - GEG
Nonstop3h 50mAmerican Airlines
Deal found 9/14$217

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 September 15, 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

Wed 10/8

3:37 pm-11:50 pm

1 stop6h 13m

Chicago O'Hare Intl

Wed 10/15

6:05 pm-11:59 pm

1 stop7h 54m

$183

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Wed 11/19

11:25 am-5:02 pm

Nonstop3h 37m

Chicago O'Hare Intl

Mon 11/24

9:15 am-11:31 am

Nonstop4h 16m

$190

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Wed 11/19

6:05 am-5:35 pm

2 stops9h 30m

Chicago Midway

Mon 11/24

6:35 pm-11:55 pm

1 stop7h 20m

$204

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Wed 11/19

6:05 am-5:18 pm

1 stop9h 13m

Chicago O'Hare Intl

Mon 11/24

1:38 pm-9:01 pm

2 stops9h 23m

$204

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Fri 10/24

7:00 am-6:59 pm

1 stop9h 59m

Chicago O'Hare Intl

Mon 10/27

2:54 pm-11:56 pm

1 stop11h 02m

$214

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 12/6

7:47 pm-6:21 am

1 stop8h 34m

Chicago O'Hare Intl

Sat 12/13

3:05 pm-11:59 pm

1 stop10h 54m

$214

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 12/6

1:14 pm-7:17 pm

Nonstop4h 03m

Chicago O'Hare Intl

Sat 12/13

10:25 am-12:30 pm

Nonstop4h 05m

$215

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Sat 10/18

5:45 am-1:08 pm

1 stop5h 23m

Chicago Midway

Sat 10/25

9:20 am-1:05 pm

1 stop5h 45m

$215

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Tue 11/4

5:05 am-1:30 pm

1 stop6h 25m

Chicago O'Hare Intl

Tue 11/4

6:05 pm-10:48 pm

1 stop6h 43m

$215

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 10/25

2:17 pm-9:19 pm

1 stop5h 02m

Chicago O'Hare Intl

Tue 11/4

2:25 pm-9:05 pm

1 stop8h 40m

$215

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 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 September 15, 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 September 15, 2025.

The most flights from USID to CHI are scheduled on a Friday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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 3h 37m. Delta provides one of the quickest options available for as low as $190. 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 $74 on United Airlines. Other airlines that offer cheap prices include Southwest from $81 and Delta from $92 one-way.

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

  • 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 (85%), Air Canada (76%), United Airlines( 76%).

  • What are the cheapest flights from Idaho to Chicago?

    Looking for the cheapest flight from Idaho to Chicago? While on average our users pay $693, our data indicates the cheapest price to be $134. The most popular route (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), is priced around $167.

  • 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
Chesterton

Browse thousands of different options on Cheapflights for your next trip

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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.

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$134Average$355FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$217Average$327FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$233Average$378FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$233Average$490FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$255Average$395FlexibilityNo cancel feeOn-time71%

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