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$95+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Idaho to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$199
(Delta)

One-way from

$95
(Kiwi.com)

Good round-trip deal

$492 or less

Good one-way deal

$293 or less
From Idaho to Chicago (CHI)
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One-way flight from Idaho to Chicago (CHI)
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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 January 21, 2025.

This Delta deal was found by Cheapflights users on 1/21. 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 2/86:00 amGEG - ORD
1 stop7h 30mDelta
Tue 2/115:00 pmORD - GEG
1 stop8h 43mDelta
Deal found 1/21$199
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:41 pmBOI - ORD
1 stop9h 55mSpirit Airlines
Tue 3/1110:49 amORD - BOI
3 stops26h 43mSpirit Airlines
Deal found 1/21$248
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Fri 8/2912:44 pmGEG - ORD
1 stop14h 20mAlaska Airlines
Mon 9/16:50 pmORD - GEG
1 stop7h 09mAlaska Airlines
Deal found 1/21$248
This Delta deal was found by Cheapflights users on 1/21. 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 2/73:00 pmBOI - ORD
1 stop5h 58mDelta
Sun 2/167:20 amORD - BOI
1 stop6h 07mDelta
Deal found 1/21$249
This Delta deal was found by Cheapflights users on 1/21. 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 2/197:24 pmGEG - MDW
2 stops11h 27mDelta
Fri 2/212:08 pmMDW - GEG
2 stops11h 55mDelta
Deal found 1/21$254
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Tue 3/48:30 amBOI - ORD
Nonstop3h 40mUnited Airlines
Tue 3/118:45 amORD - BOI
1 stop5h 43mUnited Airlines
Deal found 1/21$259
This Southwest deal was found by Cheapflights users on 1/21. 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.
Tue 2/116:00 amGEG - MDW
1 stop9h 10mSouthwest
Sun 2/165:20 amMDW - GEG
1 stop6h 55mSouthwest
Deal found 1/21$261
This Southwest deal was found by Cheapflights users on 1/21. 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 2/2011:15 amBOI - MDW
1 stop8h 25mSouthwest
Thu 2/275:20 amMDW - BOI
1 stop6h 05mSouthwest
Deal found 1/21$269
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 10/29:50 amBOI - ORD
1 stop9h 09mAlaska Airlines
Mon 10/65:10 pmORD - BOI
1 stop7h 45mAlaska Airlines
Deal found 1/21$269
This Delta deal was found by Cheapflights users on 1/21. 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 3/105:30 amBOI - MDW
1 stop7h 45mDelta
Thu 3/132:55 pmMDW - BOI
2 stops10h 04mDelta
Deal found 1/21$289
This United Airlines deal was found by Cheapflights users on 1/21. 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 11/284:00 pmGEG - ORD
1 stop5h 57mUnited Airlines
Sat 12/68:45 amORD - GEG
Nonstop4h 10mUnited Airlines
Deal found 1/21$297
This American Airlines deal was found by Cheapflights users on 1/21. 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 5/13:21 pmGEG - ORD
1 stop7h 20mAmerican Airlines
Tue 5/66:25 amORD - GEG
1 stop7h 24mAmerican Airlines
Deal found 1/21$301

Find flights from Idaho to Chicago within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 2/15

1:25 pm-11:56 pm

1 stop8h 31m

Chicago O'Hare Intl

Tue 2/25

2:10 pm-9:07 pm

1 stop8h 57m

$199

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Tue 2/25

1:10 pm-10:20 pm

1 stop7h 10m

Chicago Midway

Wed 2/26

2:08 pm-12:03 am

2 stops11h 55m

$204

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 3/4

7:41 pm-6:36 am

1 stop9h 55m

Chicago O'Hare Intl

Tue 3/11

10:49 am-12:32 pm

3 stops26h 43m

$248

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 3/4

8:30 am-1:10 pm

Nonstop3h 40m

Chicago O'Hare Intl

Tue 3/11

7:35 pm-10:45 pm

Nonstop4h 10m

$249

BoiseChicago

BOI - MDW

BOIMDW

Boise Air Term. Gowen Fld

Tue 3/4

5:30 am-12:42 pm

1 stop6h 12m

Chicago Midway

Tue 3/11

7:09 pm-11:59 pm

1 stop5h 50m

$249

SpokaneChicago

GEG - MDW

GEGMDW

Spokane

Tue 3/11

1:15 pm-11:50 pm

1 stop8h 35m

Chicago Midway

Tue 3/18

6:15 am-10:35 am

1 stop6h 20m

$259

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Sat 3/1

5:45 am-1:15 pm

1 stop6h 30m

Chicago O'Hare Intl

Wed 3/5

7:20 am-6:50 pm

2 stops12h 30m

$274

SpokaneChicago

GEG - ORD

GEGORD

Spokane

Sat 2/15

5:00 am-6:30 pm

1 stop11h 30m

Chicago O'Hare Intl

Tue 2/25

12:15 pm-9:10 pm

2 stops10h 55m

$289

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Fri 1/31

7:38 pm-5:31 am

1 stop8h 53m

Chicago O'Hare Intl

Tue 2/4

7:45 am-1:45 pm

1 stop7h 00m

$297

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Tue 3/4

8:00 am-11:59 pm

1 stop14h 59m

Chicago O'Hare Intl

Tue 3/11

5:54 pm-3:30 pm

1 stop22h 36m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 58 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.

Travel insights for flights from Idaho to Chicago

Get recent, data-driven insights about flights from Idaho to Chicago including ideal travel times, pricing trends, and more.

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 $320). 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 January 21, 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 January 21, 2025.

The most flights from USID to CHI are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 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 January 21, 2025.
To help decide which airline to fly from Idaho to Chicago, see what other customers have to say about Delta, American Airlines and Alaska Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $95 on Spirit Airlines. Other airlines that offer cheap prices include Delta from $100 and Alaska Airlines from $124 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 (88%), SkyWest Airlines (88%), United Airlines( 88%).

  • What are the cheapest flights from Idaho to Chicago?

    Looking for the cheapest flight from Idaho to Chicago? While on average our users pay $1,256, our data indicates the cheapest price to be $243. The most popular route (Boise Air Term. Gowen Fld - Chicago O'Hare Intl), is priced around $199.

  • 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 $320). 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 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$114Average$208FlexibilityNo cancel feeOn-time65%
DeltaCheapest$185Average$346FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$215Average$327FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$236Average$355FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$287Average$588FlexibilityNo cancel feeOn-time69%
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