HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$194+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IDA
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kentucky to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(Delta)

One-way from

$194
(American Airlines)

Popular in

September

Cheapest in

January

Average price

$716
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
One-way flight from Kentucky to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 24, 2025.

This Delta deal was found by Cheapflights users on 4/23. 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 6/34:05 pmSDF - IDA
2 stops8h 46mDelta
Wed 6/116:52 pmIDA - SDF
2 stops11h 53mDelta
Deal found 4/23$279
This United Airlines deal was found by Cheapflights users on 4/23. 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 8/23:25 pmSDF - IDA
1 stop7h 34mUnited Airlines
Sat 8/307:00 amIDA - SDF
1 stop5h 34mUnited Airlines
Deal found 4/23$374
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 8/17:05 amBNA - IDA
1 stop8h 18mDelta
Fri 8/83:05 pmIDA - BNA
1 stop6h 17mDelta
Deal found 4/22$387
This Delta deal was found by Cheapflights users on 4/23. 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 8/27:00 amCVG - IDA
1 stop5h 33mDelta
Sat 8/3011:20 amIDA - CVG
2 stops8h 41mDelta
Deal found 4/23$388
This American Airlines deal was found by Cheapflights users on 4/22. 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 8/1511:35 amBNA - IDA
2 stops10h 26mAmerican Airlines
Sun 8/2412:30 pmIDA - BNA
1 stop19h 00mAmerican Airlines
Deal found 4/22$400
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/285:05 pmBNA - IDA
1 stop6h 46mUnited Airlines
Tue 6/35:00 amIDA - BNA
1 stop7h 37mUnited Airlines
Deal found 4/23$415
This United Airlines deal was found by Cheapflights users on 4/23. 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 8/25:44 pmLEX - IDA
2 stops18h 00mUnited Airlines
Sat 8/302:35 pmIDA - LEX
2 stops7h 22mUnited Airlines
Deal found 4/23$458
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/27:00 amCVG - IDA
1 stop8h 17mAmerican Airlines
Sat 8/3012:30 pmIDA - CVG
1 stop7h 08mAmerican Airlines
Deal found 4/23$461
This United Airlines deal was found by Cheapflights users on 4/22. 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 5/84:14 pmTYS - IDA
1 stop8h 31mUnited Airlines
Mon 5/122:40 pmIDA - TYS
1 stop5h 44mUnited Airlines
Deal found 4/22$486
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/77:10 amBNA - IDA
1 stop9h 48mAlaska Airlines
Sun 5/116:00 amIDA - BNA
1 stop10h 52mAlaska Airlines
Deal found 4/22$490
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/27:29 amLEX - IDA
1 stop7h 48mAmerican Airlines
Sat 8/3012:30 pmIDA - LEX
1 stop8h 54mAmerican Airlines
Deal found 4/23$522
This Hawaiian Airlines deal was found by Cheapflights users on 4/23. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/97:00 amBNA - IDA
1 stop9h 40mHawaiian Airlines
Fri 6/136:15 amIDA - BNA
1 stop9h 29mHawaiian Airlines
Deal found 4/23$580

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 April 24, 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

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 6/3

4:05 pm-10:51 pm

2 stops8h 46m

Idaho Falls Fanning Field

Wed 6/11

6:52 pm-8:45 am

2 stops11h 53m

$279

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 8/2

3:25 pm-8:59 pm

1 stop7h 34m

Idaho Falls Fanning Field

Sat 8/30

7:00 am-2:34 pm

1 stop5h 34m

$374

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Fri 8/1

7:05 am-2:23 pm

1 stop8h 18m

Idaho Falls Fanning Field

Fri 8/8

3:05 pm-10:22 pm

1 stop6h 17m

$387

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sat 8/2

7:00 am-10:33 am

1 stop5h 33m

Idaho Falls Fanning Field

Sat 8/30

11:20 am-10:01 pm

2 stops8h 41m

$388

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Fri 8/15

11:35 am-9:01 pm

2 stops10h 26m

Idaho Falls Fanning Field

Sun 8/24

12:30 pm-8:30 am

1 stop19h 00m

$400

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Wed 5/28

5:05 pm-10:51 pm

1 stop6h 46m

Idaho Falls Fanning Field

Tue 6/3

5:00 am-1:37 pm

1 stop7h 37m

$415

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 8/2

5:44 pm-9:44 am

2 stops18h 00m

Idaho Falls Fanning Field

Sat 8/30

2:35 pm-11:57 pm

2 stops7h 22m

$458

CincinnatiIdaho Falls

CVG - IDA

CVGIDA

Cincinnati Cinci./N. Kentucky

Sat 8/2

7:00 am-1:17 pm

1 stop8h 17m

Idaho Falls Fanning Field

Sat 8/30

12:30 pm-9:38 pm

1 stop7h 08m

$461

KnoxvilleIdaho Falls

TYS - IDA

TYSIDA

Knoxville McGhee Tyson

Thu 5/8

4:14 pm-10:45 pm

1 stop8h 31m

Idaho Falls Fanning Field

Mon 5/12

2:40 pm-10:24 pm

1 stop5h 44m

$486

NashvilleIdaho Falls

BNA - IDA

BNAIDA

Nashville Intl

Wed 5/7

7:10 am-3:58 pm

1 stop9h 48m

Idaho Falls Fanning Field

Sun 5/11

6:00 am-5:52 pm

1 stop10h 52m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 24 results
1
2
3

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, October is the cheapest month in which you can book a flight from Kentucky to Idaho Falls (average of $380). Flying from Kentucky 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 KY to IDA?

Find hourly flight availability from Kentucky 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 April 24, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kentucky 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 April 24, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Kentucky 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
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $194. Users have also found prices from $199 and $242 on Delta and Alaska 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 Lexington Blue Grass - 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, October is the cheapest month in which you can book a flight from Kentucky to Idaho Falls (average of $380). Flying from Kentucky 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.

See more FAQs

Traveling to a place near Kentucky?

Book flights to Kentucky if you plan to visit one of these locations
Rexburg

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kentucky to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Jackson flights
John F Kennedy Intl to Jackson flights
O'Hare Intl to Jackson flights
LaGuardia to Jackson flights
Los Angeles to Boise flights
Seattle to Boise flights
Seattle to Spokane flights
Dallas/Fort Worth to Boise flights
Los Angeles to Spokane flights
Atlanta to Jackson flights
O'Hare Intl to Boise flights
Denver to Spokane flights
Dallas/Fort Worth to Spokane flights
Denver to Boise flights
Minneapolis to Spokane flights
Portland to Boise flights
San Francisco to Spokane flights
San Francisco to Boise flights
Santa Ana to Boise flights
O'Hare Intl to Spokane flights
Dulles Intl to Jackson flights
Sky Harbor Intl to Spokane flights
San Francisco to Jackson flights
Los Angeles to Jackson flights
Portland to Spokane flights
Ontario to Spokane flights
Philadelphia to Spokane flights
Charlotte to Jackson flights
San Diego to Boise flights
Baltimore to Jackson flights
Sky Harbor Intl to Boise flights
San Diego to Spokane flights
Burbank to Boise flights
Reagan-National to Jackson flights
Minneapolis to Boise flights
John F Kennedy Intl to Spokane flights
Boston to Jackson flights
Newark to Spokane flights
John F Kennedy Intl to Boise flights
Atlanta to Boise flights
Ontario to Boise flights
Sacramento to Boise flights
Spokane to Boise flights
San Jose to Spokane flights
Minneapolis to Jackson flights
Raleigh to Jackson flights
Newark to Boise flights
Seattle to Jackson flights
Sacramento to Spokane flights
LaGuardia to Spokane flights

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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$633FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$337Average$618FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.