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Idaho Falls

$254+ Cheap flights from Kentucky 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.
SDF — IDA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$308
(Mytrip)

One-way from

$254
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$351
Provider with most accurate pricing for Louisville Intl-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Idaho Falls Fanning Field flights.
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From Kentucky to Idaho Falls Fanning Field
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One-way flight from Kentucky to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 18% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 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 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 October 30, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:00 pmBNA - IDA
1 stop15h 29mMultiple Airlines
Thu 12/44:39 pmIDA - BNA
2 stops22h 12mMultiple Airlines
Deal found 10/30$308
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.
Wed 12/36:23 pmCVG - IDA
1 stop7h 36mAlaska Airlines
Tue 1/139:00 amIDA - CVG
1 stop8h 49mAlaska Airlines
Deal found 10/29$322
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.
Thu 11/139:00 amCVG - IDA
1 stop13h 31mMultiple Airlines
Mon 11/177:56 pmIDA - CVG
2 stops24h 12mMultiple Airlines
Deal found 10/29$341
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.
Thu 12/46:23 pmCVG - IDA
1 stop7h 36mAlaska Airlines
Tue 1/136:58 pmIDA - CVG
1 stop22h 51mAlaska Airlines
Deal found 10/29$342
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.
Wed 11/1210:37 amSDF - IDA
2 stops13h 42mDelta
Sun 11/166:57 pmIDA - SDF
2 stops12h 55mDelta
Deal found 10/28$419
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:00 amLEX - IDA
1 stop8h 28mAmerican Airlines
Tue 11/181:58 pmIDA - LEX
1 stop5h 58mAmerican Airlines
Deal found 10/29$419
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.
Tue 12/26:23 pmCVG - IDA
1 stop24h 04mAlaska Airlines
Sat 12/65:07 pmIDA - CVG
1 stop22h 16mAlaska Airlines
Deal found 10/29$436
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.
Sat 11/229:30 pmBNA - IDA
2 stops42h 25mMultiple Airlines
Sun 11/3010:53 pmIDA - BNA
1 stop14h 40mMultiple Airlines
Deal found 10/28$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.
Thu 11/136:30 pmCVG - IDA
1 stop7h 29mAlaska Airlines
Mon 11/176:05 amIDA - CVG
1 stop9h 25mAlaska Airlines
Deal found 10/29$451
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.
Sat 11/157:45 amLEX - IDA
2 stops16h 48mDelta
Tue 11/186:57 pmIDA - LEX
2 stops12h 30mDelta
Deal found 10/28$458
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:13 amSDF - IDA
1 stop8h 14mAmerican Airlines
Mon 11/171:58 pmIDA - SDF
1 stop6h 03mAmerican Airlines
Deal found 10/29$460
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.
Tue 11/112:15 pmCVG - IDA
2 stops10h 04mDelta
Wed 11/126:57 pmIDA - CVG
2 stops11h 56mDelta
Deal found 10/28$461

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 October 30, 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

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Tue 12/2

9:00 pm-11:29 am

1 stop15h 29m

Idaho Falls Fanning Field

Thu 12/4

4:39 pm-3:51 pm

2 stops22h 12m

$308

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Thu 12/4

6:23 pm-11:59 pm

1 stop7h 36m

Idaho Falls Fanning Field

Tue 1/13

6:58 pm-7:49 pm

1 stop22h 51m

$342

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Tue 3/3

8:00 am-3:23 pm

1 stop9h 23m

Idaho Falls Fanning Field

Wed 3/4

8:00 am-5:10 pm

1 stop7h 10m

$371

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Tue 3/3

7:05 am-12:31 pm

1 stop6h 26m

Idaho Falls Fanning Field

Wed 3/4

1:05 pm-10:20 pm

1 stop8h 15m

$389

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 11/15

7:00 am-1:28 pm

1 stop8h 28m

Idaho Falls Fanning Field

Tue 11/18

1:58 pm-9:56 pm

1 stop5h 58m

$419

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Tue 3/3

4:15 pm-10:21 pm

2 stops8h 06m

Idaho Falls Fanning Field

Wed 3/4

6:45 pm-8:55 am

2 stops12h 10m

$425

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Thu 1/15

8:00 am-6:18 pm

1 stop12h 18m

Idaho Falls Fanning Field

Mon 1/19

6:58 pm-7:49 pm

1 stop22h 51m

$433

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Tue 3/3

8:35 am-3:40 pm

2 stops9h 05m

Idaho Falls Fanning Field

Wed 3/4

2:40 pm-10:13 pm

1 stop5h 33m

$456

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 11/15

7:45 am-10:33 pm

2 stops16h 48m

Idaho Falls Fanning Field

Tue 11/18

6:57 pm-9:27 am

2 stops12h 30m

$458

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 11/13

7:13 am-1:27 pm

1 stop8h 14m

Idaho Falls Fanning Field

Mon 11/17

1:58 pm-10:01 pm

1 stop6h 03m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 37 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, November is the cheapest month in which you can book a flight from Kentucky to Idaho Falls (average of $274). Flying from Kentucky to Idaho Falls in February is currently the most expensive (average of $497). 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 26m. Fly via Alaska Airlines, Delta, or American Airlines to get the fastest option. Airlines will cover a distance of 1433 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Kentucky 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 $254. Users have also found prices from $262 and $311 on Allegiant Air and American Airlines, respectively.

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

    While some choose either Cincinnati Cinci./N. Kentucky - Idaho Falls Fanning Field or Knoxville McGhee Tyson - Idaho Falls Fanning Field, Nashville Intl - 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, November is the cheapest month in which you can book a flight from Kentucky to Idaho Falls (average of $274). Flying from Kentucky to Idaho Falls in February is currently the most expensive (average of $497). 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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$488FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$343Average$488FlexibilityNo cancel feeOn-time69%

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