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Idaho Falls

$234+ Cheap flights from Illinois 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IDA
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Illinois to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 November 21, 2024.

Find flight deals from Illinois to Idaho Falls

Cheapest flights from Illinois to Idaho Falls
Explore the most affordable flight options available from Illinois to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This United Airlines deal was found by Cheapflights users on 11/20. 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 12/147:10 amORD - IDA
1 stop7h 19mUnited Airlines
Mon 12/231:48 pmIDA - ORD
1 stop20h 37mUnited Airlines
Deal found 11/20$430
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Sat 12/146:56 pmORD - IDA
2 stops21h 58mMultiple Airlines
Mon 12/238:34 pmIDA - ORD
2 stops23h 15mMultiple Airlines
Deal found 11/20$487
This United Airlines deal was found by Cheapflights users on 11/21. 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 12/65:46 pmMLI - IDA
2 stops17h 07mUnited Airlines
Tue 12/102:35 pmIDA - MLI
1 stop5h 25mUnited Airlines
Deal found 11/21$513
This United deal was found by Cheapflights users on 11/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/308:35 amSTL - IDA
1 stop5h 31mUnited Airlines
Sun 1/51:48 pmIDA - STL
1 stop7h 28mUnited Airlines
Deal found 11/21$784
This Delta deal was found by Cheapflights users on 11/20. 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 11/2310:05 amORD - IDA
2 stops9h 19mDelta
Mon 11/256:10 amIDA - ORD
1 stop5h 32mDelta
Deal found 11/20$829
This Delta deal was found by Cheapflights users on 11/20. 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 11/232:17 pmMDW - IDA
2 stops9h 36mDelta
Mon 11/256:10 amIDA - MDW
2 stops11h 22mDelta
Deal found 11/20$834
This American Airlines deal was found by Cheapflights users on 11/20. 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 11/226:30 amBMI - IDA
1 stop7h 39mAmerican Airlines
Sun 11/241:40 pmIDA - BMI
1 stop6h 51mAmerican Airlines
Deal found 11/20$1,005

Find flights from Illinois to Idaho Falls within your budget

Customize your flight search to find flights from Illinois 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Wed 1/8

7:00 am-12:25 pm

1 stop6h 25m

Idaho Falls Fanning Field

Mon 1/13

12:55 pm-7:30 pm

1 stop5h 35m

$314

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 1/24

7:45 am-3:27 pm

1 stop8h 42m

Idaho Falls Fanning Field

Mon 1/27

4:04 pm-11:59 pm

1 stop6h 55m

$334

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Wed 1/8

8:00 am-5:09 pm

2 stops10h 09m

Idaho Falls Fanning Field

Mon 1/13

2:28 pm-8:43 pm

1 stop5h 15m

$394

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 12/14

7:10 am-1:29 pm

1 stop7h 19m

Idaho Falls Fanning Field

Mon 12/23

1:48 pm-11:25 am

1 stop20h 37m

$430

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 12/14

6:56 pm-3:54 pm

2 stops21h 58m

Idaho Falls Fanning Field

Mon 12/23

8:34 pm-8:49 pm

2 stops23h 15m

$487

MolineIdaho Falls

MLI - IDA

MLIIDA

Moline Quad-City

Fri 12/6

5:46 pm-9:53 am

2 stops17h 07m

Idaho Falls Fanning Field

Tue 12/10

2:35 pm-9:00 pm

1 stop5h 25m

$513

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Wed 5/14

7:00 am-3:23 pm

1 stop9h 23m

Idaho Falls Fanning Field

Wed 5/28

8:00 am-6:37 pm

1 stop9h 37m

$574

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Sat 12/14

12:44 pm-10:55 pm

2 stops11h 11m

Idaho Falls Fanning Field

Mon 12/23

6:00 am-4:24 pm

2 stops9h 24m

$1,548

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 1/1

9:40 pm-9:51 am

1 stop13h 11m

$234

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 12/7

7:00 am-3:02 pm

1 stop9h 02m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 13 results
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Best time to book a flight from Illinois to Idaho Falls

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

Travel insights for flights from Illinois to Idaho Falls

Get recent, data-driven insights about flights from Illinois to Idaho Falls including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Idaho Falls (average of $380). Flying from Illinois to Idaho Falls in July is currently the most expensive (average of $628). 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 IL to IDA?

Find hourly flight availability from Illinois 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 November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Idaho Falls as you normally would.

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 November 21, 2024.
Read reviews from past customers who have flown United Airlines, Alaska Airlines and Delta from Illinois to Idaho Falls. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,464 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,755 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines
7.4
Good
9,172 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,464 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Overall

8.0

Crew

8.5

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to Idaho Falls from Illinois.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $234. Users have also found prices from $258 and $494 on Alaska Airlines and Delta, respectively.

  • What are the most popular routes from Illinois to Idaho Falls?

    When deciding which route to take from Illinois to Idaho Falls consider Lambert-St Louis - Idaho Falls Fanning Field, Chicago O'Hare Intl - Idaho Falls Fanning Field or Chicago Midway - Idaho Falls Fanning Field as they are the most popular.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Illinois to Idaho Falls (average of $380). Flying from Illinois to Idaho Falls in July is currently the most expensive (average of $628). 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.

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Top airline flying from Illinois to Idaho Falls

Discover the top airline that operate flights from Illinois 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$363Average$647FlexibilityNo cancel feeOn-time69%
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