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Idaho Falls

$197+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IDA
Nov 9 — Nov 161
Sat 11/9
Sat 11/16
1 adult, Economy
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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 4, 2024.

This Delta deal was found by Cheapflights users on 11/3. 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 12/56:35 pmSTL - IDA
1 stop5h 18mDelta
Sun 12/81:09 pmIDA - STL
1 stop7h 16mDelta
Deal found 11/3$448
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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.
Sun 11/176:20 amORD - IDA
1 stop18h 39mAlaska Airlines
Sun 11/246:00 amIDA - ORD
1 stop21h 30mAlaska Airlines
Deal found 11/3$454
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/32:30 pmORD - IDA
1 stop20h 23mUnited Airlines
Mon 12/92:35 pmIDA - ORD
1 stop5h 46mUnited Airlines
Deal found 11/3$485
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/191:35 pmORD - IDA
1 stop9h 46mAmerican Airlines
Thu 12/265:25 amIDA - ORD
1 stop7h 46mAmerican Airlines
Deal found 11/4$497
This Mytrip deal was found by Cheapflights users on 11/3. 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.
Thu 12/59:20 amSTL - IDA
3 stops27h 08mMultiple Airlines
Sun 12/84:44 pmIDA - STL
3 stops23h 01mMultiple Airlines
Deal found 11/3$512
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/510:59 amMLI - IDA
2 stops11h 15mUnited Airlines
Tue 11/122:35 pmIDA - MLI
1 stop5h 26mUnited Airlines
Deal found 11/4$646
This United deal was found by Cheapflights users on 11/3. 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 12/232:25 pmPIA - IDA
2 stops31h 42mUnited Airlines
Mon 12/301:48 pmIDA - PIA
2 stops23h 00mUnited Airlines
Deal found 11/3$681
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 11/187:00 amSTL - IDA
1 stop17h 59mAlaska Airlines
Fri 11/226:00 amIDA - STL
1 stop16h 59mAlaska Airlines
Deal found 11/2$683
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 11/185:40 pmSTL - IDA
2 stops20h 51mUnited Airlines
Fri 11/225:59 pmIDA - STL
1 stop25h 46mUnited Airlines
Deal found 11/2$715
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Mon 12/235:30 amPIA - IDA
2 stops17h 51mAmerican Airlines
Mon 12/301:44 pmIDA - PIA
1 stop6h 42mAmerican Airlines
Deal found 11/3$761
This Delta deal was found by Cheapflights users on 11/3. 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.
Tue 12/31:30 pmMDW - IDA
2 stops10h 23mDelta
Mon 12/96:00 amIDA - MDW
2 stops10h 01mDelta
Deal found 11/3$888

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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 12/4

7:10 am-1:29 pm

1 stop7h 19m

$197

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Wed 1/1

7:00 am-2:56 pm

2 stops8h 56m

$237

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Wed 4/9

2:42 pm-10:15 pm

1 stop8h 33m

$304

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Wed 4/9

3:30 pm-10:21 pm

2 stops7h 51m

$334

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Fri 4/18

4:30 pm-9:28 am

1 stop17h 58m

$298

ChicagoIdaho Falls

MDW - IDA

MDWIDA

Chicago Midway

Wed 11/20

2:17 pm-10:53 pm

2 stops9h 36m

$342

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Sat 12/28

1:55 pm-6:15 pm

1 stop5h 20m

$529

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Wed 1/8

5:03 am-12:25 pm

1 stop8h 22m

Idaho Falls Fanning Field

Mon 1/13

5:30 am-1:42 pm

1 stop7h 12m

$344

ChicagoIdaho Falls

ORD - IDA

ORDIDA

Chicago O'Hare Intl

Fri 1/17

5:28 pm-3:27 pm

1 stop22h 59m

Idaho Falls Fanning Field

Mon 1/20

4:04 pm-11:59 pm

1 stop6h 55m

$354

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-8:46 pm

1 stop5h 18m

$429

Flights are sorted by cheapest first

Deals found on 11/3

Showing 1-10 of 21 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 $376). Flying from Illinois to Idaho Falls in July is currently the most expensive (average of $629). 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 4, 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 4, 2024.
Read reviews from past customers who have flown American Airlines, United Airlines and Alaska Airlines 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
9,423 reviews

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,423 reviews
Alaska Airlines
8.0
Very good
9,423 reviews

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,829 reviews
Alaska Airlines
8.0
Very good
9,423 reviews

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,226 reviews
Alaska Airlines
8.0
Very good
9,423 reviews

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.2

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
9,423 reviews

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.2

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.

  • Can I find flights from Illinois to Idaho Falls for under $400 on Cheapflights?

    Yes, there are multiple flights from Illinois to Idaho Falls for under $400. The cheapest flight booked recently is on Alaska Airlines for just $354, but on average you can expect to pay $627.

  • 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 $197. Users have also found prices from $237 and $304 on Alaska Airlines and American Airlines, respectively.

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

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

  • What does ORD to IDA mean?

    ORD stands for Chicago O'Hare Intl Airport, while IDA stands for Idaho Falls Fanning Field Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI).

  • Can I find deals for flights from Illinois to Idaho Falls that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Idaho Falls flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Idaho Falls with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Idaho Falls flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Illinois to Idaho Falls that allow pets onboard?

    Many airlines flying from Illinois to Idaho Falls offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Idaho Falls?

    Yes, you can often find last-minute deals on Illinois to Idaho Falls flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to Idaho Falls flight deals updated?

    The Illinois to Idaho Falls flight deals you see on this page were last updated on 11/4.

  • 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 $376). Flying from Illinois to Idaho Falls in July is currently the most expensive (average of $629). 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

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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 2,455,398 searches. Data last updated November 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$363Average$647FlexibilityNo cancel feeOn-time69%
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