$434+ Cheap flights from Idaho Falls to Louisville (IDA - SDF)
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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SDF
Nov 8 — Nov 151
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to Louisville with Cheapflights
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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
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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 Idaho Falls to Louisville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho Falls to LouisvilleExplore 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 9, 2026.
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 9, 2026.
This American Airlines deal was found by Cheapflights users on 10/5. 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 10/271:39 pm -
1 stop7h 48m
Thu 10/294:18 pm -
1 stop7h 24m
Deal found 10/5![American Airlines logo]()
$677
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/272:35 pm -
1 stop5h 49m
Thu 10/297:00 am -
2 stops10h 38m
Deal found 10/5![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 10/7. 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 11/232:35 pm -
1 stop5h 49m
Sun 11/298:00 am -
1 stop27h 53m
Deal found 10/7![United Airlines logo]()
$847
This American Airlines deal was found by Cheapflights users on 10/7. 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 11/231:43 pm -
1 stop18h 30m
Sun 11/296:48 pm -
1 stop20h 25m
Deal found 10/7![American Airlines logo]()
$1,130
Best flights from Idaho Falls to LouisvilleDiscover carefully curated flight deals from Idaho Falls to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
Discover carefully curated flight deals from Idaho Falls to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/232:30 pm -
1 stop6h 00m
Wed 1/279:00 am -
1 stop6h 28m
Deal found 10/8![United Airlines logo]()
$469
Last-minute flights from Idaho Falls to LouisvilleDiscover last-minute flight deals from Idaho Falls to Louisville. Data last updated October 9, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Louisville. Data last updated October 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/5. 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 10/271:39 pm -
1 stop7h 48m
Thu 10/294:18 pm -
1 stop7h 24m
Deal found 10/5![American Airlines logo]()
$677
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/272:35 pm -
1 stop5h 49m
Thu 10/297:00 am -
2 stops10h 38m
Deal found 10/5![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 10/7. 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 11/232:35 pm -
1 stop5h 49m
Sun 11/298:00 am -
1 stop27h 53m
Deal found 10/7![United Airlines logo]()
$847
This American Airlines deal was found by Cheapflights users on 10/7. 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 11/231:43 pm -
1 stop18h 30m
Sun 11/296:48 pm -
1 stop20h 25m
Deal found 10/7![American Airlines logo]()
$1,130
One-way flights from Idaho Falls to LouisvilleSearch for one-way flight options from Idaho Falls to Louisville. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
Search for one-way flight options from Idaho Falls to Louisville. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:09 am -
2 stops13h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Alaska Airlines logo]()
$434
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:35 am -
2 stops11h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$621
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:35 pm -
1 stop5h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$659
Find 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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $469 (United Airlines) |
One-way from | $434 (Alaska Airlines) |
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 7,457,451 searches. Data last updated October 9, 2026.
Use the filters below to find and compare flights from Idaho Falls to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Sat 1/23
2:30 pm-10:30 pm
1 stop6h 00m
Louisville Intl
Wed 1/27
9:00 am-1:28 pm
1 stop6h 28m
$469
Quickest round-trip
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Sun 10/25
2:35 pm-10:24 pm
1 stop5h 49m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$659
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Sat 10/24
2:28 pm-10:32 pm
1 stop6h 04m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$990
Sorted by cheapest first
- 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.
IDA-SDF
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 9, 2026.
Peruse reviews from past customers who have flown with United 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.
Crew
8.1
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Jeffersonville
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Top airline flying from Idaho Falls to Louisville
Discover the top airline 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 7,457,451 searches. Data last updated October 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$268 | Average$508 | FlexibilityNo cancel fee | On-time69% |