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Idaho Falls

$185+ Cheap flights from Louisville to Idaho Falls (SDF - IDA)

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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IDA
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap 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 July 30, 2025.

Round-trip from

$309
(Mytrip)

One-way from

$185
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$488
From Louisville Intl to Idaho Falls Fanning Field
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One-way flight from Louisville Intl to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 13% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Louisville to Idaho Falls

Cheapest flights from Louisville to Idaho Falls
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 July 30, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:47 pmSDF - IDA
2 stops24h 43mMultiple Airlines
Mon 8/186:20 pmIDA - SDF
2 stops21h 22mMultiple Airlines
Deal found 7/29$309
This American Airlines deal was found by Cheapflights users on 7/29. 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 10/97:32 amSDF - IDA
1 stop7h 09mAmerican Airlines
Tue 10/1412:55 pmIDA - SDF
1 stop18h 30mAmerican Airlines
Deal found 7/29$418
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 10/2012:32 pmSDF - IDA
2 stops12h 06mAlaska Airlines
Thu 10/236:00 amIDA - SDF
2 stops14h 23mAlaska Airlines
Deal found 7/30$577
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/148:40 amSDF - IDA
2 stops10h 42mUnited Airlines
Tue 8/192:35 pmIDA - SDF
1 stop5h 55mUnited Airlines
Deal found 7/30$616
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 8/1412:50 pmSDF - IDA
2 stops11h 37mDelta
Tue 8/1911:20 amIDA - SDF
2 stops7h 54mDelta
Deal found 7/30$709

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 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Louisville to Idaho Falls that are best for you.

Fly from

Louisville

Fly to

Idaho Falls

Route

Depart

Return

Price

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 8/14

12:47 pm-11:30 am

2 stops24h 43m

Idaho Falls Fanning Field

Mon 8/18

6:20 pm-5:42 pm

2 stops21h 22m

$309

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 10/9

7:32 am-12:41 pm

1 stop7h 09m

Idaho Falls Fanning Field

Tue 10/14

12:55 pm-9:25 am

1 stop18h 30m

$418

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Mon 10/20

12:32 pm-10:38 pm

2 stops12h 06m

Idaho Falls Fanning Field

Thu 10/23

6:00 am-10:23 pm

2 stops14h 23m

$577

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 8/14

8:40 am-5:22 pm

2 stops10h 42m

Idaho Falls Fanning Field

Tue 8/19

2:35 pm-10:30 pm

1 stop5h 55m

$616

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 8/14

12:50 pm-10:27 pm

2 stops11h 37m

Idaho Falls Fanning Field

Tue 8/19

11:20 am-9:14 pm

2 stops7h 54m

$709

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 8/14

12:47 pm-11:30 am

2 stops24h 43m

$185

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Fri 8/15

6:44 am-12:47 pm

1 stop8h 03m

$261

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Fri 8/15

12:30 pm-10:51 pm

2 stops12h 21m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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.
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.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Idaho Falls

What is the cheapest month to book a flight from Louisville to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Louisville to Idaho Falls (average of $380). Flying from Louisville to Idaho Falls in December is currently the most expensive (average of $578). 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.

How much does it cost to fly round-trip from Louisville to Idaho Falls?

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 July 30, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Flying on American Airlines is currently your cheapest option to Idaho Falls, with prices starting at $324. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $419 and $616, respectively. These flights start at 39% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Louisville to Idaho Falls (average of $380). Flying from Louisville to Idaho Falls in December is currently the most expensive (average of $578). 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 Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top 2 airlines flying from Louisville to Idaho Falls

Discover the top 2 airlines 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 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$632FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$324Average$571FlexibilityNo cancel feeOn-time69%

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