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$118+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — CHI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$236
(Delta)

One-way from

$118
(Alaska Airlines)

Popular in

March

Cheapest in

June

Average price

$606

Good round-trip deal

$340 or less

Good one-way deal

$235 or less
From Idaho Falls Fanning Field to Chicago (CHI)
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One-way flight from Idaho Falls Fanning Field to Chicago (CHI)
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Highest demand for flights based on searches. 19% potential increase in price ($124 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Idaho Falls Fanning Field to Chicago (CHI).
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Price to beat on a one-way flight from Idaho Falls Fanning Field to Chicago (CHI).
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Find 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 July 31, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/213:00 pmIDA - ORD
1 stop6h 04mDelta
Mon 8/256:25 pmORD - IDA
1 stop5h 02mDelta
Deal found 7/29$236
This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/203:57 pmIDA - ORD
1 stop7h 06mHawaiian Airlines
Tue 9/308:00 amORD - IDA
1 stop8h 20mHawaiian Airlines
Deal found 7/29$302
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 10/241:11 pmIDA - ORD
Nonstop3h 17mAmerican Airlines
Mon 10/279:45 amORD - IDA
Nonstop3h 40mAmerican Airlines
Deal found 7/30$311
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:55 pmIDA - ORD
1 stop11h 56mMultiple Airlines
Fri 9/199:00 amORD - IDA
1 stop8h 05mMultiple Airlines
Deal found 7/30$329
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 10/136:00 amIDA - ORD
1 stop23h 24mAlaska Airlines
Thu 10/163:15 pmORD - IDA
1 stop8h 23mAlaska Airlines
Deal found 7/31$351
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:00 amIDA - MDW
2 stops10h 35mDelta
Tue 9/301:43 pmMDW - IDA
2 stops9h 42mDelta
Deal found 7/30$484

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 July 31, 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

Thu 8/21

3:00 pm-10:04 pm

1 stop6h 04m

Chicago O'Hare Intl

Mon 8/25

6:25 pm-10:27 pm

1 stop5h 02m

$236

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Sat 9/20

3:57 pm-12:03 am

1 stop7h 06m

Chicago O'Hare Intl

Tue 9/30

8:00 am-3:20 pm

1 stop8h 20m

$302

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 10/24

1:11 pm-5:28 pm

Nonstop3h 17m

Chicago O'Hare Intl

Mon 10/27

9:45 am-12:25 pm

Nonstop3h 40m

$311

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 9/12

10:55 pm-11:51 am

1 stop11h 56m

Chicago O'Hare Intl

Fri 9/19

9:00 am-4:05 pm

1 stop8h 05m

$329

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Mon 10/13

6:00 am-6:24 am

1 stop23h 24m

Chicago O'Hare Intl

Thu 10/16

3:15 pm-10:38 pm

1 stop8h 23m

$351

Idaho FallsChicago

IDA - MDW

IDAMDW

Idaho Falls Fanning Field

Sat 9/20

6:00 am-5:35 pm

2 stops10h 35m

Chicago Midway

Tue 9/30

1:43 pm-10:25 pm

2 stops9h 42m

$484

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Tue 9/30

3:57 pm-12:03 am

1 stop7h 06m

$118

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Tue 8/26

3:00 pm-10:04 pm

1 stop6h 04m

$119

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 10/3

10:57 pm-11:51 am

1 stop11h 54m

$153

Idaho FallsChicago

IDA - ORD

IDAORD

Idaho Falls Fanning Field

Fri 8/29

12:46 pm-4:58 pm

Nonstop3h 12m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 12 results
1
2

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, August is the cheapest month in which you can book a flight from Idaho Falls to Chicago (average of $245). Flying from Idaho Falls 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 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 July 31, 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 morning, which can drop the price by up to 36% 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 July 31, 2025.
Read through reviews of airlines operating flights from Idaho Falls to Chicago, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

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

    Flying on Delta is currently your cheapest option to Chicago, with prices starting at $236. Additional round-trip tickets that might be worth considering are offered by Hawaiian Airlines and American Airlines, with the lowest prices starting at $302 and $311, respectively. These flights start at 54% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Idaho Falls to Chicago one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $118. Delta flights start at $119 while deals on American Airlines start at $196 one-way.

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

    While on average a flight from Idaho Falls to Chicago is generally $370, our data shows the cheapest flight currently is $193. When looking at the most popular route, (Idaho Falls Fanning Field - Chicago O'Hare Intl), you can expect to pay $237 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, August is the cheapest month in which you can book a flight from Idaho Falls to Chicago (average of $245). Flying from Idaho Falls 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
Valparaiso
Chesterton

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$361Average$645FlexibilityNo cancel feeOn-time69%

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