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$138+ Cheap flights from Idaho Falls (IDA) 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — CHI
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Idaho Falls to Chicago

Cheapest flights from Idaho Falls to Chicago
Explore the most affordable flight options available from Idaho Falls to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 12/314:05 pmIDA - ORD
1 stop6h 54mUnited Airlines
Sun 1/47:10 amORD - IDA
1 stop7h 20mUnited Airlines
Deal found 12/15$636
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sat 12/202:30 pmIDA - ORD
1 stop5h 49mUnited Airlines
Wed 12/317:10 amORD - IDA
1 stop7h 20mUnited Airlines
Deal found 12/16$676
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/194:05 pmIDA - ORD
1 stop5h 55mUnited Airlines
Sun 12/212:31 pmORD - IDA
1 stop7h 43mUnited Airlines
Deal found 12/17$711
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/201:16 pmIDA - ORD
1 stop8h 04mAmerican Airlines
Wed 12/315:15 amORD - IDA
1 stop8h 31mAmerican Airlines
Deal found 12/16$876
This Delta deal was found by Cheapflights users on 12/17. 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 12/196:00 amIDA - ORD
2 stops9h 57mDelta
Sun 12/211:35 pmORD - IDA
2 stops10h 17mDelta
Deal found 12/17$1,089
This Delta deal was found by Cheapflights users on 12/16. 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 12/205:55 amIDA - ORD
2 stops12h 00mDelta
Wed 12/3110:46 amORD - IDA
2 stops13h 06mDelta
Deal found 12/16$1,269
This Delta deal was found by Cheapflights users on 12/17. 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 12/196:00 amIDA - MDW
2 stops11h 18mDelta
Sun 12/2111:48 amMDW - IDA
2 stops7h 29mDelta
Deal found 12/17$1,279

Find flight deals from Idaho Falls to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$331
(United Airlines)

One-way from

$138
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$553
Provider with most accurate pricing for Idaho Falls Fanning Field-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Chicago (CHI) flights.
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From Idaho Falls Fanning Field to Chicago (CHI)
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One-way flight from Idaho Falls Fanning Field to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 December 18, 2025.
Use the filters below to find and compare flights from Idaho Falls to Chicago that are best for you.

Fly from

Idaho Falls

Fly to

Chicago

Route

Depart

Return

Price

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 1/9

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

Tue 1/13

7:20 am-12:34 pm

1 stop6h 14m

$331

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 1/24

6:58 pm-2:38 pm

1 stop18h 40m

Chicago O'Hare Intl

Tue 1/27

3:35 pm-10:59 pm

1 stop8h 24m

$331

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 2/6

2:40 pm-11:59 pm

1 stop8h 19m

Chicago O'Hare Intl

Sun 2/8

7:00 am-1:30 pm

1 stop7h 30m

$331

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 2/14

8:00 am-4:33 pm

1 stop7h 33m

Chicago O'Hare Intl

Wed 2/18

3:54 pm-11:36 pm

1 stop8h 42m

$351

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Mon 1/26

6:58 pm-2:38 pm

1 stop18h 40m

Chicago O'Hare Intl

Fri 1/30

3:44 pm-6:18 pm

2 stops27h 34m

$372

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Mon 1/26

2:07 pm-11:44 pm

1 stop8h 37m

Chicago O'Hare Intl

Fri 1/30

6:54 am-1:37 pm

1 stop7h 43m

$378

Idaho FallsChicago

IDA - MDW

IDAMDW

Idaho Falls Fanning Field

Sat 1/24

5:25 am-4:16 pm

2 stops9h 51m

Chicago Midway

Tue 1/27

1:49 pm-10:57 pm

2 stops10h 08m

$515

Idaho FallsChicago

IDA - MDW

IDAMDW

Idaho Falls Fanning Field

Mon 1/26

5:25 am-5:55 pm

2 stops11h 30m

Chicago Midway

Fri 1/30

9:33 am-5:51 pm

2 stops9h 18m

$1,120

Idaho FallsChicago

IDA - MDW

IDAMDW

Idaho Falls Fanning Field

Fri 1/2

5:55 am-5:19 pm

2 stops10h 24m

Chicago Midway

Tue 1/6

1:28 pm-10:19 pm

2 stops9h 51m

$1,219

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 1/16

9:20 pm-2:17 pm

2 stops15h 57m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 20 results
1
2

Compare providers for flights from Idaho Falls to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Chicago in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Idaho Falls-Chicago flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-Chicago flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Idaho Falls-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Chicago flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Idaho Falls to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Idaho Falls 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 Falls to Chicago

What is the cheapest month to book a flight from Idaho Falls to Chicago?

Currently, June is the cheapest month in which you can book a flight from Idaho Falls to Chicago (average of $193). Flying from Idaho Falls to Chicago in July is currently the most expensive (average of $447). 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 IDA to CHI?

Find hourly flight availability from Idaho Falls 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 December 18, 2025.

When flying from Idaho Falls 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 39% versus a flight in the afternoon.

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

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 December 18, 2025.
Read through reviews of airlines operating flights from Idaho Falls to Chicago, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Idaho Falls to Chicago?

    If you book a flight to Chicago from Idaho Falls, you will be flying from Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls. There are 0 flights from Fanning Field to Chicago per day from 2 different airlines.

  • How long is the flight from Idaho Falls to Chicago?

    For as low as $331, Delta can have you in Chicago from Idaho Falls in 7h 37m. Airlines will cover a distance of 1225 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Idaho Falls to Chicago round-trip?

    Flying on United Airlines is currently your cheapest option to Chicago, with prices starting at $311. Another option worth looking into is American Airlines, starting at $323 round trip. These flights start at 37% lower than the current average price 3 months from now.

  • Can I find deals for flights from Idaho Falls to Chicago that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Chicago.

  • Can I find deals for business class flights from Idaho Falls to Chicago?

    Yes. Cheapflights offers flight deals from Idaho Falls 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 Falls to Chicago?

    Currently, June is the cheapest month in which you can book a flight from Idaho Falls to Chicago (average of $193). Flying from Idaho Falls to Chicago in July is currently the most expensive (average of $447). 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
Lansing
Merrillville
Hammond
Porter
Benton Harbor

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Top 2 airlines flying from Idaho Falls to Chicago

Discover the top 2 airlines that operate flights from Idaho Falls 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$311Average$490FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$323Average$390FlexibilityNo cancel feeOn-time71%

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