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$286+ Cheap flights from Idaho Falls to Louisville (IDA - SDF)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SDF
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Idaho Falls to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Louisville (SDF). 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 August 14, 2025.

Round-trip from

$319
(American Airlines)

One-way from

$286
(American Airlines)
From Idaho Falls Fanning Field to Louisville Intl
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One-way flight from Idaho Falls Fanning Field to Louisville Intl
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Find flight deals from Idaho Falls to Louisville

Cheapest flights from Idaho Falls to Louisville
Explore the most affordable flight options available from Idaho Falls to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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 8/287:00 amIDA - SDF
1 stop8h 34mAmerican Airlines
Mon 9/16:44 amSDF - IDA
1 stop8h 03mAmerican Airlines
Deal found 8/13$319
This American Airlines deal was found by Cheapflights users on 8/14. 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 12/51:48 pmIDA - SDF
1 stop8h 26mAmerican Airlines
Tue 12/165:00 amSDF - IDA
1 stop9h 27mAmerican Airlines
Deal found 8/14$354
This Delta deal was found by Cheapflights users on 8/13. 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 10/246:53 pmIDA - SDF
2 stops13h 03mDelta
Sat 10/253:00 pmSDF - IDA
2 stops9h 30mDelta
Deal found 8/13$364
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/285:00 amIDA - SDF
2 stops14h 02mUnited Airlines
Mon 9/13:30 pmSDF - IDA
1 stop7h 24mUnited Airlines
Deal found 8/13$381
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/245:56 pmIDA - SDF
2 stops14h 03mUnited Airlines
Sat 10/253:30 pmSDF - IDA
1 stop7h 22mUnited Airlines
Deal found 8/13$407
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/54:19 pmIDA - SDF
2 stops17h 13mUnited Airlines
Tue 12/169:00 amSDF - IDA
2 stops8h 26mUnited Airlines
Deal found 8/14$412
This American Airlines deal was found by Cheapflights users on 8/14. 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 10/91:11 pmIDA - SDF
1 stop18h 19mAmerican Airlines
Mon 10/207:32 amSDF - IDA
1 stop7h 09mAmerican Airlines
Deal found 8/14$441
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/1812:41 pmIDA - SDF
1 stop18h 43mAmerican Airlines
Sat 9/206:12 pmSDF - IDA
1 stop19h 57mAmerican Airlines
Deal found 8/13$461

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Louisville 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 August 14, 2025.
Use the filters below to find and compare flights from Idaho Falls to Louisville that are best for you.

Fly from

Idaho Falls

Fly to

Louisville

Route

Depart

Return

Price

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 8/28

7:00 am-5:34 pm

1 stop8h 34m

Louisville Intl

Mon 9/1

6:44 am-12:47 pm

1 stop8h 03m

$319

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 12/5

1:48 pm-12:14 am

1 stop8h 26m

Louisville Intl

Tue 12/16

5:00 am-12:27 pm

1 stop9h 27m

$354

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 10/24

1:11 pm-10:48 pm

1 stop7h 37m

Louisville Intl

Sat 10/25

6:45 am-12:24 pm

1 stop7h 39m

$354

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 10/24

6:53 pm-9:56 am

2 stops13h 03m

Louisville Intl

Sat 10/25

3:00 pm-10:30 pm

2 stops9h 30m

$364

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 8/28

5:00 am-9:02 pm

2 stops14h 02m

Louisville Intl

Mon 9/1

3:30 pm-8:54 pm

1 stop7h 24m

$381

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 10/24

5:56 pm-9:59 am

2 stops14h 03m

Louisville Intl

Sat 10/25

3:30 pm-8:52 pm

1 stop7h 22m

$407

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 12/5

4:19 pm-11:32 am

2 stops17h 13m

Louisville Intl

Tue 12/16

9:00 am-3:26 pm

1 stop8h 26m

$407

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 10/9

1:11 pm-9:30 am

1 stop18h 19m

Louisville Intl

Mon 10/20

7:32 am-12:41 pm

1 stop7h 09m

$441

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 8/21

1:17 pm-9:51 pm

1 stop6h 34m

$286

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Thu 8/21

9:26 am-11:00 pm

2 stops11h 34m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 11 results
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Best time to book a flight from Idaho Falls to Louisville

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

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Idaho Falls to Louisville to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Idaho Falls to Louisville round-trip?

    American Airlines, at $348, was found to be the cheapest airline from Idaho Falls to Louisville. An alternate airline flying to your destination would be United Airlines.

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

    One-way options have recently been found by users for as low as $286 on American Airlines. Other airlines that offer cheap prices include Delta from $316 and United Airlines from $331 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho Falls to Louisville (average of $299). Flying from Idaho Falls to Louisville in April is currently the most expensive (average of $369). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Alternative routes for Idaho Falls to Louisville

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Top 2 airlines flying from Idaho Falls to Louisville

Discover the top 2 airlines that operate flights from Idaho Falls to Louisville. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$348Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$403Average$578FlexibilityNo cancel feeOn-time69%

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