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$131+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — CHI
Mar 3 — Mar 101
Tue 3/3
Tue 3/10
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 February 1, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 10/304:00 pm
IDA
-
ORD
1 stop6h 41m
Alaska Airlines
Sat 10/318:00 am
ORD
-
IDA
1 stop8h 29m
Alaska Airlines
Deal found 1/29$269
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:00 am
IDA
-
ORD
1 stop7h 33m
Alaska Airlines
Thu 3/123:54 pm
ORD
-
IDA
1 stop8h 42m
Alaska Airlines
Deal found 1/31$303
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:00 am
IDA
-
ORD
1 stop7h 33m
Alaska Airlines
Wed 3/48:20 am
ORD
-
IDA
2 stops16h 16m
Alaska Airlines
Deal found 1/31$311
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:06 pm
IDA
-
ORD
1 stop6h 53m
Alaska Airlines
Tue 5/122:13 pm
ORD
-
IDA
1 stop23h 53m
Alaska Airlines
Deal found 1/30$331
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:20 pm
IDA
-
ORD
1 stop22h 13m
Alaska Airlines
Thu 3/123:54 pm
ORD
-
IDA
1 stop8h 42m
Alaska Airlines
Deal found 1/31$336
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:00 am
IDA
-
ORD
1 stop7h 33m
Alaska Airlines
Sat 3/143:54 pm
ORD
-
IDA
1 stop8h 42m
Alaska Airlines
Deal found 1/31$337
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:00 am
IDA
-
ORD
1 stop7h 33m
Alaska Airlines
Thu 3/53:07 pm
ORD
-
IDA
2 stops26h 36m
Alaska Airlines
Deal found 1/31$343
This United Airlines deal was found by Cheapflights users on 1/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/122:30 pm
IDA
-
ORD
1 stop7h 24m
United Airlines
Sat 4/187:00 am
ORD
-
IDA
1 stop7h 24m
United Airlines
Deal found 1/30$348
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:20 pm
IDA
-
ORD
1 stop22h 13m
Alaska Airlines
Thu 3/123:54 pm
ORD
-
IDA
1 stop8h 42m
Alaska Airlines
Deal found 1/31$366
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:30 pm
IDA
-
ORD
2 stops29h 19m
Multiple Airlines
Thu 3/128:55 pm
ORD
-
IDA
1 stop19h 19m
Multiple Airlines
Deal found 1/31$372
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Sat 3/76:36 am
IDA
-
ORD
2 stops12h 44m
United Airlines
Thu 3/127:00 am
ORD
-
IDA
1 stop7h 30m
United Airlines
Deal found 1/31$374
This Delta deal was found by Cheapflights users on 1/31. 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.
Fri 2/275:25 am
IDA
-
MDW
2 stops11h 20m
Delta
Thu 3/59:34 am
MDW
-
IDA
2 stops9h 15m
Delta
Deal found 1/31$681

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 February 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Alaska Airlines)

One-way from

$131
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$393

Good round-trip deal

$449 or less

Good one-way deal

$290 or less
Provider with most accurate pricing for Idaho Falls Fanning Field-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Chicago (CHI) flights.
Search Deals
From Idaho Falls Fanning Field to Chicago (CHI)
Search Deals
One-way flight from Idaho Falls Fanning Field to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Idaho Falls Fanning Field to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Idaho Falls Fanning Field to Chicago (CHI).
Search Deals

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 February 1, 2026.
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

Mon 4/13

2:30 pm-10:54 pm

1 stop7h 24m

Chicago O'Hare Intl

Sat 4/18

7:00 am-1:24 pm

1 stop7h 24m

$269

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 2/27

8:00 am-4:33 pm

1 stop7h 33m

Chicago O'Hare Intl

Thu 3/5

3:54 pm-11:36 pm

1 stop8h 42m

$269

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 4/11

5:45 pm-12:29 am

1 stop5h 44m

Chicago O'Hare Intl

Sat 4/18

7:00 am-1:24 pm

1 stop7h 24m

$269

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 3/7

8:00 am-4:33 pm

1 stop7h 33m

Chicago O'Hare Intl

Fri 3/13

3:54 pm-11:36 pm

1 stop8h 42m

$303

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 3/7

8:00 am-4:33 pm

1 stop7h 33m

Chicago O'Hare Intl

Thu 3/12

3:54 pm-11:36 pm

1 stop8h 42m

$303

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Mon 3/9

5:20 pm-2:13 pm

1 stop19h 53m

Chicago O'Hare Intl

Sat 3/14

3:54 pm-11:36 pm

1 stop8h 42m

$303

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-4:33 pm

1 stop22h 13m

Chicago O'Hare Intl

Wed 3/4

7:00 am-4:43 pm

1 stop10h 43m

$320

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Mon 3/9

5:20 pm-2:13 pm

1 stop19h 53m

Chicago O'Hare Intl

Fri 3/13

3:54 pm-11:36 pm

1 stop8h 42m

$336

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Mon 3/23

2:35 pm-10:54 pm

1 stop7h 19m

Chicago O'Hare Intl

Tue 3/24

7:00 am-1:30 pm

1 stop7h 30m

$337

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 3/7

8:00 am-4:33 pm

1 stop7h 33m

Chicago O'Hare Intl

Sat 3/14

3:54 pm-11:36 pm

1 stop8h 42m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 23 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Chicago flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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 February 1, 2026.
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
8,128 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.9

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
8,128 reviews
Delta
7.9
Good
8,128 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.9

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
9,222 reviews
Delta
7.9
Good
8,128 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.9

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
11,211 reviews
Delta
7.9
Good
8,128 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.9

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 $269, United Airlines can have you in Chicago from Idaho Falls in 7h 24m. 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 $299. 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.

  • What are the cheapest flights from Idaho Falls to Chicago?

    While on average a flight from Idaho Falls to Chicago is generally $472, our data shows the cheapest flight currently is $273. When looking at the most popular route, (Idaho Falls Fanning Field - Chicago O'Hare Intl), you can expect to pay $269 for that flight.

  • 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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Alternative routes for Idaho Falls to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$299Average$485FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$323Average$391FlexibilityNo cancel feeOn-time71%

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