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Idaho Falls

$103+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — IDA
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheap 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 octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$281
(Kiwi.com)

One-way from

$103
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$359
Provider with most accurate pricing for Chicago (CHI)-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Idaho Falls Fanning Field flights.
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From Chicago (CHI) to Idaho Falls Fanning Field
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One-way flight from Chicago (CHI) to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 30% potential increase in price ($205 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 octubre 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/139:22 pmORD - IDA
2 stops19h 46mMultiple Airlines
lun. 11/177:56 pmIDA - ORD
1 stop8h 36mMultiple Airlines
Deal found 10/29$281
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/171:51 pmORD - IDA
1 stop21h 07mUnited Airlines
vie. 12/264:05 pmIDA - ORD
1 stop6h 54mUnited Airlines
Deal found 10/29$448
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
mié. 11/128:00 amORD - IDA
1 stop8h 13mAlaska Airlines
mié. 11/193:50 pmIDA - ORD
1 stop7h 34mAlaska Airlines
Deal found 10/29$457
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/233:42 pmORD - IDA
1 stop8h 17mUnited Airlines
lun. 12/295:00 amIDA - ORD
1 stop5h 25mUnited Airlines
Deal found 10/29$461
This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 11/111:38 pmORD - IDA
1 stop5h 39mDelta
sáb. 11/151:15 pmIDA - ORD
1 stop7h 10mDelta
Deal found 10/28$471
This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 11/1110:47 amMDW - IDA
2 stops12h 32mDelta
sáb. 11/151:15 pmIDA - MDW
2 stops9h 25mDelta
Deal found 10/28$481
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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.
mar. 12/306:00 amORD - IDA
1 stop19h 07mAlaska Airlines
vie. 1/26:00 amIDA - ORD
1 stop10h 12mAlaska Airlines
Deal found 10/30$511
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mar. 12/308:45 amORD - IDA
1 stop7h 37mUnited Airlines
sáb. 1/35:00 amIDA - ORD
1 stop5h 25mUnited Airlines
Deal found 10/30$521
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
sáb. 12/209:15 amMDW - IDA
2 stops33h 27mMultiple Airlines
sáb. 1/39:30 pmIDA - MDW
1 stop24h 51mMultiple Airlines
Deal found 10/28$545
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
dom. 12/213:01 pmMDW - IDA
1 stop18h 00mMultiple Airlines
dom. 1/46:21 pmIDA - MDW
2 stops26h 51mMultiple Airlines
Deal found 10/28$582
This Delta deal was found by Cheapflights users on 10/30. 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.
mar. 12/3011:48 amMDW - IDA
2 stops7h 29mDelta
jue. 1/15:55 amIDA - MDW
2 stops10h 24mDelta
Deal found 10/30$919
This Delta deal was found by Cheapflights users on 10/30. 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.
sáb. 11/221:47 pmMDW - IDA
2 stops9h 46mDelta
sáb. 11/296:00 amIDA - MDW
2 stops11h 08mDelta
Deal found 10/30$1,110

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 octubre 30, 2025.
Use the filters below to find and compare flights from Chicago to Idaho Falls that are best for you.

Fly from

Chicago

Fly to

Idaho Falls

Route

Depart

Return

Price

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

jue. 11/13

2:31 pm-4:08 pm

3 stops26h 37m

Idaho Falls Fanning Field

lun. 11/17

7:56 pm-5:32 am

1 stop8h 36m

$322

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mié. 12/17

1:51 pm-9:58 am

1 stop21h 07m

Idaho Falls Fanning Field

vie. 12/26

4:05 pm-11:59 pm

1 stop6h 54m

$448

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mié. 11/12

8:00 am-3:13 pm

1 stop8h 13m

Idaho Falls Fanning Field

mié. 11/19

3:50 pm-12:24 am

1 stop7h 34m

$457

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mar. 12/23

3:42 pm-10:59 pm

1 stop8h 17m

Idaho Falls Fanning Field

lun. 12/29

5:00 am-11:25 am

1 stop5h 25m

$461

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mar. 11/11

1:38 pm-6:17 pm

1 stop5h 39m

Idaho Falls Fanning Field

sáb. 11/15

1:15 pm-9:25 pm

1 stop7h 10m

$471

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

mar. 11/11

10:47 am-10:19 pm

2 stops12h 32m

Idaho Falls Fanning Field

sáb. 11/15

1:15 pm-11:40 pm

2 stops9h 25m

$481

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mar. 12/30

8:45 am-3:22 pm

1 stop7h 37m

Idaho Falls Fanning Field

sáb. 1/3

5:00 am-11:25 am

1 stop5h 25m

$521

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

mar. 12/30

6:00 am-12:07 am

1 stop19h 07m

Idaho Falls Fanning Field

jue. 1/1

2:43 pm-11:59 pm

1 stop8h 16m

$546

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

jue. 11/13

3:25 pm-11:59 pm

1 stop9h 34m

Idaho Falls Fanning Field

lun. 11/17

6:05 am-4:57 pm

1 stop9h 52m

$550

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

lun. 12/29

6:00 am-12:07 am

1 stop19h 07m

Idaho Falls Fanning Field

vie. 1/2

6:00 am-5:12 pm

1 stop10h 12m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 35 results
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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 October.
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 Chicago-Idaho Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Idaho Falls flight deals on Cheapflights vs. eDreams >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 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 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 February is currently the most expensive (average of $384). 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 CHI to IDA?

Find hourly flight availability from Chicago to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

It’s typically best to fly out from Chicago to Idaho Falls in the afternoon. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.

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 octubre 30, 2025.
Read through reviews of airlines operating flights from Chicago to Idaho Falls, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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. 2 airlines have flights to Idaho Falls Fanning Field from Chicago on a regular basis.

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

    United Airlines, Alaska Airlines, and Delta can get you from Chicago to Idaho Falls in just under 5h 39m. Your travel time can differ by up to 15h 28m. The distance between Chicago and Idaho Falls is about 1225 mi. This flight may include one or multiple stops.

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

    Flying on American Airlines is currently your cheapest option to Idaho Falls, with prices starting at $323. Another option worth looking into is United Airlines, starting at $406 round trip. These flights start at 30% lower than the current average price 3 months from now.

  • 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 February is currently the most expensive (average of $384). 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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Alternative routes for Chicago to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Chicago to Idaho Falls

Discover the top 2 airlines 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$391FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$406Average$620FlexibilityNo cancel feeOn-time69%

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