$240+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SDF
Oct 6 — Oct 131
Round-trip
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.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 September 6, 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 September 6, 2026.
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/242:28 pm -
1 stop6h 04m
Wed 10/288:00 am -
1 stop7h 28m
Deal found 9/1![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/302:28 pm -
1 stop6h 04m
Wed 10/75:15 am -
2 stops10h 09m
Deal found 9/2![United Airlines logo]()
$433
This deal was found by Cheapflights users on 9/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:28 pm -
1 stop6h 04m
Wed 9/308:00 am -
1 stop7h 24m
Deal found 9/1![United Airlines logo]()
$529
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/301:58 pm -
1 stop6h 35m
Wed 10/76:29 am -
1 stop8h 51m
Deal found 9/2![American Airlines logo]()
$535
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 September 6, 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 September 6, 2026.
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/242:28 pm -
1 stop6h 04m
Wed 10/288:00 am -
1 stop7h 28m
Deal found 9/1![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/302:28 pm -
1 stop6h 04m
Wed 10/75:15 am -
2 stops10h 09m
Deal found 9/2![United Airlines logo]()
$433
This deal was found by Cheapflights users on 9/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:28 pm -
1 stop6h 04m
Wed 9/308:00 am -
1 stop7h 24m
Deal found 9/1![United Airlines logo]()
$529
Last-minute flights from Idaho Falls to LouisvilleDiscover last-minute flight deals from Idaho Falls to Louisville. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Louisville. Data last updated September 6, 2026 and is based on user searches.
This deal was found by Cheapflights users on 9/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:28 pm -
1 stop6h 04m
Wed 9/308:00 am -
1 stop7h 24m
Deal found 9/1![United Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/302:28 pm -
1 stop6h 04m
Wed 10/75:15 am -
2 stops10h 09m
Deal found 9/2![United Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/301:58 pm -
1 stop6h 35m
Wed 10/76:29 am -
1 stop8h 51m
Deal found 9/2![American Airlines logo]()
$535
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/242:28 pm -
1 stop6h 04m
Wed 10/288:00 am -
1 stop7h 28m
Deal found 9/1![United Airlines logo]()
$429
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 September 6, 2026.
Search for one-way flight options from Idaho Falls to Louisville. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Mon 10/57:42 pm -
2 stops18h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Fri 10/29:52 am -
3 stops32h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Sun 10/410:02 am -
3 stops52h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/22:28 pm -
1 stop6h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/2. 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 10/26:57 pm -
2 stops13h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 9/2. 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 10/66:56 pm -
2 stops13h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 10/36:09 am -
2 stops13h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Alaska Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/810:02 am -
3 stops22h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/1112:15 pm -
1 stop7h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/1110:35 am -
2 stops10h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$424
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 September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $429 (United Airlines) |
One-way from | $240 (Kiwi.com) |
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 September 6, 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
Fri 10/2
6:57 pm-10:19 am
2 stops13h 22m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$334
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Wed 10/7
6:09 am-11:27 pm
2 stops15h 18m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$375
Quickest round-trip
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Fri 9/11
12:15 pm-9:43 pm
1 stop7h 28m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$419
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Fri 9/11
10:35 am-10:59 pm
2 stops10h 24m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$424
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 10/28
8:00 am-1:28 pm
1 stop7h 28m
$429
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Wed 9/30
2:28 pm-10:32 pm
1 stop6h 04m
Louisville Intl
Wed 10/7
5:15 am-1:24 pm
2 stops10h 09m
$433
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Tue 10/6
2:28 pm-9:34 am
3 stops17h 06m
Louisville Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$448
Idaho FallsLouisville
IDA Idaho Falls Fanning Field - SDF Louisville Intl
IDASDF
Idaho Falls Fanning Field
Fri 9/25
2:28 pm-10:32 pm
1 stop6h 04m
Louisville Intl
Wed 9/30
8:00 am-1:24 pm
1 stop7h 24m
$529
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 September 6, 2026.
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.
Comfort
7.3
Food
6.6
Boarding
7.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Food
6.6
Boarding
7.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Food
6.6
Boarding
7.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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 locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
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
Complete your trip
Flights by cabin class
Louisville flight routes
Other flight options
Other flights from Idaho Falls
Popular flights
Alternative routes for Idaho Falls to Louisville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho Falls to Louisville by cabin class
Find flights from Idaho Falls to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 6, 2026.
Idaho Falls and Louisville flights
Browse other Idaho Falls and Louisville flight options. Last updated on September 6, 2026.
Other flights from Idaho Falls
Browse through other flights departing from Idaho Falls. Flights are based on user searches made on Cheapflights and were last updated on September 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$268 | Average$534 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$268 | Average$508 | FlexibilityNo cancel fee | On-time69% |