$396+ Cheap flights from Louisville to Idaho Falls (SDF - IDA)
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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IDA
Nov 26 — Dec 31
Round-trip
1 adult, Economy
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Find cheap flights from Louisville 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 Louisville to Idaho Falls
Cheapest
Best
Last-minute
One-way
Cheapest flights from Louisville to Idaho FallsExplore the most affordable flight options available from Louisville to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.
Explore the most affordable flight options available from Louisville to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.
This American Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/84:10 pm -
1 stop7h 33m
Wed 11/111:35 pm -
1 stop7h 59m
Deal found 10/24![American Airlines logo]()
$834
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/85:10 am -
2 stops10h 18m
Wed 11/112:35 pm -
1 stop5h 49m
Deal found 10/24![United Airlines logo]()
$839
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 12/288:00 am -
1 stop7h 28m
Mon 1/42:37 pm -
1 stop5h 53m
Deal found 10/22![United Airlines logo]()
$885
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 12/273:20 pm -
1 stop7h 59m
Mon 12/287:00 am -
1 stop5h 21m
Deal found 10/22![United Airlines logo]()
$888
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sat 12/2610:17 am -
2 stops13h 02m
Sun 12/272:37 pm -
1 stop5h 53m
Deal found 10/22![United Airlines logo]()
$922
Best flights from Louisville to Idaho FallsDiscover carefully curated flight deals from Louisville to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.
Discover carefully curated flight deals from Louisville to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sat 1/309:00 am -
1 stop8h 31m
Tue 2/22:30 pm -
1 stop6h 00m
Deal found 10/22![United Airlines logo]()
$469
Last-minute flights from Louisville to Idaho FallsDiscover last-minute flight deals from Louisville to Idaho Falls. Data last updated October 27, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Idaho Falls. Data last updated October 27, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/84:10 pm -
1 stop7h 33m
Wed 11/111:35 pm -
1 stop7h 59m
Deal found 10/24![American Airlines logo]()
$834
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/85:10 am -
2 stops10h 18m
Wed 11/112:35 pm -
1 stop5h 49m
Deal found 10/24![United Airlines logo]()
$839
One-way flights from Louisville to Idaho FallsSearch for one-way flight options from Louisville to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
Search for one-way flight options from Louisville to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
This American Airlines deal was found by Cheapflights users on 10/25. 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 11/74:10 pm -
1 stop7h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![American Airlines logo]()
$396
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/75:40 am -
2 stops11h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Sat 11/74:06 pm -
3 stops46h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$428
Find flight deals from Louisville to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Idaho Falls (IDA). 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 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $469 (United Airlines) |
One-way from | $396 (American Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $542 |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville 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 7,457,451 searches. Data last updated October 27, 2026.
Use the filters below to find and compare flights from Louisville to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
LouisvilleIdaho Falls
SDF Louisville Intl - IDA Idaho Falls Fanning Field
SDFIDA
Louisville Intl
Sat 11/7
4:10 pm-9:43 pm
1 stop7h 33m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$396
LouisvilleIdaho Falls
SDF Louisville Intl - IDA Idaho Falls Fanning Field
SDFIDA
Louisville Intl
Sat 11/7
5:40 am-3:38 pm
2 stops11h 58m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$401
LouisvilleIdaho Falls
SDF Louisville Intl - IDA Idaho Falls Fanning Field
SDFIDA
Louisville Intl
Sat 11/7
4:06 pm-12:53 pm
3 stops46h 47m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$428
LouisvilleIdaho Falls
SDF Louisville Intl - IDA Idaho Falls Fanning Field
SDFIDA
Louisville Intl
Sat 1/30
9:00 am-3:31 pm
1 stop8h 31m
Idaho Falls Fanning Field
Tue 2/2
2:30 pm-10:30 pm
1 stop6h 00m
$469
Sorted by cheapest first
Compare providers for flights from Louisville to Idaho Falls
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 Louisville to Idaho Falls in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Louisville-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-Idaho Falls 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 Louisville-Idaho Falls 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 Louisville to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Louisville with our price prediction graph.
SDF-IDA
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 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 October 27, 2026.
Get a feel of what it's like to fly with United Airlines from Louisville to Idaho Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.3
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Louisville to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Other flights to Idaho Falls
Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 27, 2026.
Louisville and Idaho Falls flights
Browse other Louisville and Idaho Falls flight options. Last updated on October 27, 2026.
Other flights from Louisville
Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on October 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Louisville to Idaho Falls
Discover the top airline that operate flights from Louisville 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 7,457,451 searches. Data last updated October 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$341 | Average$457 | FlexibilityNo cancel fee | On-time69% |