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Idaho Falls

$146+ Cheap flights from Chicago (CHI) to Idaho Falls (IDA)

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — IDA
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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Cheap flight deals from Chicago to Idaho Falls

Cheapest flights from Chicago to Idaho Falls
Explore the most affordable flight options available from Chicago to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.

This American Airlines deal was found by Cheapflights users on 3/22. 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 8/226:00 am
ORD
-
IDA
1 stop8h 44m
American Airlines
Sat 8/292:20 pm
IDA
-
ORD
1 stop8h 46m
American Airlines
Deal found 3/22$329
This Orbitz deal was found by Cheapflights users on 3/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:09 pm
ORD
-
IDA
1 stop8h 30m
Alaska Airlines
Sun 10/254:00 pm
IDA
-
ORD
1 stop6h 41m
Alaska Airlines
Deal found 3/22$359
This United Airlines deal was found by Cheapflights users on 3/22. 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 7/115:00 am
ORD
-
IDA
1 stop5h 50m
United Airlines
Fri 7/175:54 pm
IDA
-
ORD
1 stop5h 50m
United Airlines
Deal found 3/22$360
This American Airlines deal was found by Cheapflights users on 3/22. 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 6/1110:56 am
ORD
-
IDA
Nonstop3h 42m
American Airlines
Tue 6/1612:44 pm
IDA
-
ORD
Nonstop3h 27m
American Airlines
Deal found 3/22$369
This United Airlines deal was found by Cheapflights users on 3/19. 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 6/235:00 am
ORD
-
IDA
1 stop5h 50m
United Airlines
Tue 6/235:54 pm
IDA
-
ORD
1 stop5h 50m
United Airlines
Deal found 3/19$370
This United Airlines deal was found by Cheapflights users on 3/18. 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 8/25:00 am
ORD
-
IDA
1 stop5h 50m
United Airlines
Fri 8/75:54 pm
IDA
-
ORD
1 stop5h 50m
United Airlines
Deal found 3/18$379
This Kiwi.com deal was found by Cheapflights users on 3/22. 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.
Fri 4/245:15 am
ORD
-
IDA
2 stops11h 12m
Multiple Airlines
Sun 5/35:46 pm
IDA
-
ORD
1 stop22h 14m
Multiple Airlines
Deal found 3/22$381
This Delta deal was found by Cheapflights users on 3/22. 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 5/222:11 pm
ORD
-
IDA
1 stop5h 03m
Delta
Fri 5/2911:30 am
IDA
-
ORD
1 stop6h 20m
Delta
Deal found 3/22$384
This Delta deal was found by Cheapflights users on 3/19. 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 7/37:15 am
ORD
-
IDA
1 stop8h 12m
Delta
Fri 7/103:04 pm
IDA
-
ORD
1 stop5h 54m
Delta
Deal found 3/19$394
This Delta deal was found by Cheapflights users on 3/22. 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 8/229:20 am
MDW
-
IDA
2 stops9h 54m
Delta
Sat 8/296:10 am
IDA
-
MDW
2 stops10h 55m
Delta
Deal found 3/22$489
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Thu 4/166:20 am
MDW
-
IDA
1 stop11h 36m
Multiple Airlines
Thu 4/235:46 pm
IDA
-
MDW
2 stops27h 40m
Multiple Airlines
Deal found 3/19$606
This Delta deal was found by Cheapflights users on 3/19. 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 4/39:35 am
MDW
-
IDA
2 stops9h 40m
Delta
Tue 4/75:45 am
IDA
-
MDW
2 stops11h 09m
Delta
Deal found 3/19$619

Find flight deals from Chicago to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Idaho Falls (IDA). 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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Alaska Airlines)

One-way from

$146
(Kiwi.com)

Popular in

January

Cheapest in

April

Good round-trip deal

$390 or less
Provider with most accurate pricing for Chicago (CHI)-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Idaho Falls Fanning Field flights.
Search Deals
From Chicago (CHI) to Idaho Falls Fanning Field
Search Deals
One-way flight from Chicago (CHI) to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Idaho Falls Fanning Field.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Idaho Falls 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 March 23, 2026.
Use the filters below to find and compare flights from Chicago to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 5/22

2:11 pm-6:14 pm

1 stop5h 03m

Idaho Falls Fanning Field

Fri 5/29

11:30 am-6:50 pm

1 stop6h 20m

$384

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 7/3

7:15 am-2:27 pm

1 stop8h 12m

Idaho Falls Fanning Field

Fri 7/10

3:04 pm-9:58 pm

1 stop5h 54m

$394

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 7/11

5:00 am-9:50 am

1 stop5h 50m

Idaho Falls Fanning Field

Sat 7/18

5:54 pm-12:44 am

1 stop5h 50m

$419

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 7/15

7:45 am-2:41 pm

1 stop7h 56m

Idaho Falls Fanning Field

Sat 7/25

6:00 am-11:59 am

1 stop4h 59m

$424

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 8/22

7:15 am-2:27 pm

1 stop8h 12m

Idaho Falls Fanning Field

Sat 8/29

6:50 pm-8:34 am

2 stops12h 44m

$429

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Thu 6/11

7:45 am-2:41 pm

1 stop7h 56m

Idaho Falls Fanning Field

Tue 6/16

6:00 am-12:00 pm

1 stop5h 00m

$434

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Tue 7/21

7:20 am-1:06 pm

1 stop6h 46m

Idaho Falls Fanning Field

Thu 7/30

4:14 pm-5:02 am

1 stop11h 48m

$439

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 7/15

5:00 am-9:50 am

1 stop5h 50m

Idaho Falls Fanning Field

Sat 7/25

5:54 pm-12:44 am

1 stop5h 50m

$455

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Mon 7/20

11:00 pm-1:25 pm

1 stop15h 25m

Idaho Falls Fanning Field

Sat 7/25

5:54 pm-12:44 am

1 stop5h 50m

$526

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Sat 8/22

9:20 am-6:14 pm

2 stops9h 54m

Idaho Falls Fanning Field

Sat 8/29

6:10 am-6:05 pm

2 stops10h 55m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 34 resultsSorted by cheapest first
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Compare providers for flights from Chicago to Idaho Falls

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 Chicago to Idaho Falls in March.
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 Chicago-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Idaho Falls 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 Chicago-Idaho Falls 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 Chicago to Idaho Falls

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

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

Currently, October is the cheapest month in which you can book a flight from Chicago to Idaho Falls (average of $229). Flying from Chicago to Idaho Falls in November is currently the most expensive (average of $355). 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 Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated March 23, 2026.
Read through reviews of airlines operating flights from Chicago to Idaho Falls, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,460 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,460 reviews
United Airlines
7.4
Good
9,460 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,489 reviews
United Airlines
7.4
Good
9,460 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Chicago to Idaho Falls. 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 into for flights to Idaho Falls from Chicago?

    For a flight from Chicago to Idaho Falls, you will be flying into Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 inbound flights from Chicago per day. 1 airline has flights to Idaho Falls Fanning Field from Chicago on a regular basis.

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

    Delta and United Airlines can get you from Chicago to Idaho Falls in just under 5h 03m. Your travel time can differ by up to 47m. The distance between Chicago and Idaho Falls is about 1225 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Chicago to Idaho Falls round-trip?

    Flying on American Airlines is currently your cheapest option to Idaho Falls, with prices starting at $323. This flight start at 24% lower than the current average price 3 months from now.

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

    While on average a flight from Chicago to Idaho Falls is generally $390, our data shows the cheapest flight currently is $390. When looking at the most popular route, (Chicago O'Hare Intl - Idaho Falls Fanning Field), you can expect to pay $329 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Chicago to Idaho Falls (average of $229). Flying from Chicago to Idaho Falls in November is currently the most expensive (average of $355). 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 Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top airline flying from Chicago to Idaho Falls

Discover the top airline that operate flights from Chicago to Idaho Falls. 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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$396FlexibilityNo cancel feeOn-time71%

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