HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$245+ 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SDF
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho Falls to Louisville 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.

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 October 10, 2025.

This Delta deal was found by Cheapflights users on 10/9. 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 11/101:15 pmIDA - SDF
2 stops7h 45mDelta
Sat 11/156:00 amSDF - IDA
2 stops8h 34mDelta
Deal found 10/9$279
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/102:45 pmIDA - SDF
1 stop5h 45mUnited Airlines
Sat 11/159:00 amSDF - IDA
2 stops10h 46mUnited Airlines
Deal found 10/9$287
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/72:45 pmIDA - SDF
1 stop5h 45mUnited Airlines
Mon 11/109:55 amSDF - IDA
2 stops13h 08mUnited Airlines
Deal found 10/9$354
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 12/56:05 amIDA - SDF
2 stops13h 33mAlaska Airlines
Tue 12/167:12 amSDF - IDA
2 stops11h 15mAlaska Airlines
Deal found 10/9$444
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/72:45 pmIDA - SDF
1 stop5h 45mUnited Airlines
Tue 11/118:00 amSDF - IDA
1 stop7h 35mUnited Airlines
Deal found 10/9$456
This American Airlines deal was found by Cheapflights users on 10/8. 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 12/51:58 pmIDA - SDF
1 stop6h 21mAmerican Airlines
Tue 12/167:12 amSDF - IDA
1 stop8h 15mAmerican Airlines
Deal found 10/8$469
This American Airlines deal was found by Cheapflights users on 10/9. 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 11/71:58 pmIDA - SDF
1 stop6h 03mAmerican Airlines
Tue 11/117:34 amSDF - IDA
2 stops17h 00mAmerican Airlines
Deal found 10/9$494

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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(Delta)

One-way from

$245
(Kiwi.com)
Provider with most accurate pricing for Idaho Falls Fanning Field-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Louisville Intl flights.
Search Deals
From Idaho Falls Fanning Field to Louisville Intl
Search Deals
One-way flight from Idaho Falls Fanning Field to Louisville Intl
Search Deals

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 October 10, 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

Mon 11/10

1:15 pm-11:00 pm

2 stops7h 45m

Louisville Intl

Sat 11/15

6:00 am-12:34 pm

2 stops8h 34m

$279

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Mon 11/10

2:45 pm-10:30 pm

1 stop5h 45m

Louisville Intl

Sat 11/15

9:00 am-5:46 pm

2 stops10h 46m

$287

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 11/7

2:45 pm-10:30 pm

1 stop5h 45m

Louisville Intl

Mon 11/10

9:55 am-9:03 pm

2 stops13h 08m

$354

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 12/5

6:05 am-9:38 pm

2 stops13h 33m

Louisville Intl

Tue 12/16

7:12 am-4:27 pm

2 stops11h 15m

$444

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 12/5

1:58 pm-10:19 pm

1 stop6h 21m

Louisville Intl

Tue 12/16

7:12 am-1:27 pm

1 stop8h 15m

$469

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Fri 11/7

1:58 pm-10:01 pm

1 stop6h 03m

Louisville Intl

Tue 11/11

7:34 am-10:34 pm

2 stops17h 00m

$494

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Sun 11/30

10:53 pm-5:53 pm

3 stops41h 00m

$245

Idaho FallsLouisville

IDA - SDF

IDASDF

Idaho Falls Fanning Field

Sun 11/30

5:00 am-10:30 pm

1 stop15h 30m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Compare providers for flights from Idaho Falls to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Louisville in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Idaho Falls-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 10, 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
8,968 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,968 reviews
United Airlines
7.4
Good
8,968 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,043 reviews
United Airlines
7.4
Good
8,968 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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.

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

    Airlines like Delta and United Airlines fly from Idaho Falls to Louisville in about 5h 45m. The time it takes to get you to your destination can typically vary by up to 2h. Idaho Falls and Louisville are separated by 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 cheapest airlines flying from Idaho Falls to Louisville round-trip?

    American Airlines, at $268, was found to be the cheapest airline from Idaho Falls to Louisville. An alternate airline flying to your destination would be United Airlines.

  • 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.

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

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 Idaho Falls to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Spokane to Nashville flights
Boise to Nashville flights
Spokane to Cincinnati flights
Spokane to Knoxville flights
Boise to Louisville flights
Boise to Lexington flights
Spokane to Louisville flights
Boise to Cincinnati flights
Spokane to Lexington flights
Idaho Falls to Nashville flights
Idaho Falls to Cincinnati flights
Boise to Knoxville flights
Jackson to Nashville flights
Idaho Falls to Knoxville flights
Jackson to Louisville flights
Jackson to Lexington flights
Lewiston to Cincinnati flights
Hailey to Louisville flights
Hailey to Nashville flights
Jackson to Cincinnati flights
Jackson to Knoxville flights
Idaho Falls to Lexington flights
Lewiston to Lexington flights
Spokane to Blountville flights
Spokane to Evansville flights
Pocatello to Lexington flights
Pocatello to Knoxville flights
Hailey to Knoxville flights
Boise to Paducah flights
Twin Falls to Cincinnati flights
Twin Falls to Knoxville flights
Lewiston to Knoxville flights

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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$394FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$403Average$523FlexibilityNo 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.