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Idaho Falls

$282+ Cheap flights from Kentucky to Idaho Falls (IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IDA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Kentucky to Idaho Falls

Cheapest flights from Kentucky to Idaho Falls
Explore the most affordable flight options available from Kentucky to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/253:18 pmSDF - IDA
1 stop7h 56mUnited Airlines
Fri 12/266:40 amIDA - SDF
2 stops11h 52mUnited Airlines
Deal found 12/16$475
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/248:00 amSDF - IDA
1 stop7h 30mUnited Airlines
Wed 12/242:30 pmIDA - SDF
1 stop5h 54mUnited Airlines
Deal found 12/16$575
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/2210:26 amBNA - IDA
2 stops12h 55mAmerican Airlines
Mon 12/291:16 pmIDA - BNA
1 stop7h 13mAmerican Airlines
Deal found 12/17$651
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/183:18 pmCVG - IDA
1 stop7h 56mUnited Airlines
Mon 1/55:00 amIDA - CVG
1 stop7h 22mUnited Airlines
Deal found 12/16$676
This Delta deal was found by Cheapflights users on 12/17. 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 12/209:23 amTYS - IDA
2 stops10h 54mDelta
Sat 12/275:55 amIDA - TYS
2 stops11h 32mDelta
Deal found 12/17$679
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/216:05 pmBNA - IDA
1 stop5h 54mUnited Airlines
Sat 12/272:30 pmIDA - BNA
1 stop5h 29mUnited Airlines
Deal found 12/18$680
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/238:55 amBNA - IDA
2 stops14h 26mAmerican Airlines
Sun 12/281:16 pmIDA - BNA
1 stop7h 13mAmerican Airlines
Deal found 12/17$686
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:21 amBNA - IDA
2 stops8h 56mDelta
Sat 12/275:55 amIDA - BNA
2 stops12h 14mDelta
Deal found 12/18$691
This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:30 amBNA - IDA
2 stops11h 51mAmerican Airlines
Sat 12/277:00 amIDA - BNA
1 stop7h 17mAmerican Airlines
Deal found 12/18$711
This Delta deal was found by Cheapflights users on 12/17. 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.
Mon 12/221:30 pmBNA - IDA
1 stop5h 47mDelta
Mon 12/291:10 pmIDA - BNA
1 stop7h 52mDelta
Deal found 12/17$726
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/202:21 pmBNA - IDA
1 stop7h 53mUnited Airlines
Sat 12/272:30 pmIDA - BNA
1 stop5h 29mUnited Airlines
Deal found 12/17$731
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/318:00 amBNA - IDA
1 stop8h 22mUnited Airlines
Sun 1/44:05 pmIDA - BNA
1 stop27h 54mUnited Airlines
Deal found 12/16$733

Find flight deals from Kentucky to Idaho Falls

Keep the following information in mind while searching for Kentucky to Idaho Falls flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$282
(Alaska Airlines)

Popular in

June

Cheapest in

October
Provider with most accurate pricing for Louisville Intl-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Idaho Falls Fanning Field flights.
Search Deals
From Kentucky to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky 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 December 18, 2025.
Use the filters below to find and compare flights from Kentucky to Idaho Falls that are best for you.

Fly from

Kentucky

Fly to

Idaho Falls

Route

Depart

Return

Price

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sat 1/24

8:00 am-10:59 pm

1 stop16h 59m

Idaho Falls Fanning Field

Wed 1/28

9:00 am-7:49 pm

1 stop8h 49m

$282

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 4/28

9:00 am-1:24 pm

1 stop6h 24m

Idaho Falls Fanning Field

Sun 5/3

2:35 pm-9:57 pm

1 stop5h 22m

$289

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 4/28

9:00 am-1:24 pm

1 stop6h 24m

Idaho Falls Fanning Field

Sat 5/2

2:35 pm-9:57 pm

1 stop5h 22m

$289

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Wed 1/14

8:00 am-6:18 pm

1 stop12h 18m

Idaho Falls Fanning Field

Sat 1/17

6:58 pm-7:49 pm

1 stop22h 51m

$292

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 4/28

4:15 pm-10:14 pm

2 stops7h 59m

Idaho Falls Fanning Field

Sat 5/2

1:05 pm-10:35 pm

1 stop7h 30m

$294

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Mon 3/2

8:09 am-4:43 pm

1 stop10h 34m

Idaho Falls Fanning Field

Sat 3/7

8:00 am-7:34 pm

1 stop9h 34m

$322

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Thu 1/22

4:55 pm-10:57 pm

1 stop7h 02m

Idaho Falls Fanning Field

Thu 2/5

6:35 pm-8:19 am

2 stops12h 44m

$332

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 1/24

9:00 am-1:30 pm

1 stop6h 30m

Idaho Falls Fanning Field

Wed 1/28

2:40 pm-10:24 pm

1 stop5h 44m

$369

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Mon 3/2

7:35 am-5:44 pm

2 stops11h 09m

Idaho Falls Fanning Field

Sun 3/8

6:59 pm-7:42 am

2 stops11h 43m

$381

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Wed 1/14

2:22 pm-10:19 pm

2 stops9h 57m

Idaho Falls Fanning Field

Sat 1/17

5:25 am-3:18 pm

1 stop7h 53m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 24 results
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Best time to book a flight from Kentucky to Idaho Falls

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

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

Currently, January is the cheapest month in which you can book a flight from Kentucky to Idaho Falls (average of $268). Flying from Kentucky to Idaho Falls in February is currently the most expensive (average of $498). 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.

Related info for your journey

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

    Idaho Falls Fanning Field (IDA) is the airport you will fly into if you book a flight from Kentucky to Idaho Falls. It is only a 3.8 mi journey from Fanning Field (IDA) to Idaho Falls’s city center.

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

    There are many flights that can get you from Kentucky to Idaho Falls in 6h 24m. Fly via Alaska Airlines, United Airlines, or Delta to get the fastest option. Airlines will cover a distance of 1417 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Nashville Intl - Idaho Falls Fanning Field or Knoxville McGhee Tyson - Idaho Falls Fanning Field, Cincinnati Cinci./N. Kentucky - Idaho Falls Fanning Field is the most popular route from Kentucky to Idaho Falls.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Kentucky to Idaho Falls (average of $268). Flying from Kentucky to Idaho Falls in February is currently the most expensive (average of $498). 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 Kentucky 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 Kentucky to Idaho Falls

Discover the top 2 airlines that operate flights from Kentucky 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$488FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$343Average$482FlexibilityNo cancel feeOn-time69%

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