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Cheap flights from Louisville to Idaho Falls from $251

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Idaho Falls departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Louisville to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:51 am - 1:38 pm
SDF
-
IDA
8h 47m
1 stop
American Airlines Logo
12:44 pm - 10:19 pm
IDA
-
SDF
7h 35m
1 stop
$450American Airlines
Sat, May 23 - Wed, May 27
American Airlines Logo
7:00 am - 11:32 am
SDF
-
IDA
6h 32m
1 stop
American Airlines Logo
2:20 pm - 11:06 pm
IDA
-
SDF
6h 46m
1 stop
$479American Airlines
Thu, Aug 6 - Mon, Aug 10
United Airlines Logo
9:00 am - 3:39 pm
SDF
-
IDA
8h 39m
1 stop
United Airlines Logo
6:45 am - 2:31 pm
IDA
-
SDF
5h 46m
1 stop
$555United Airlines
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
10:47 am - 10:15 pm
SDF
-
IDA
13h 28m
2 stops
American Airlines Logo
12:44 pm - 10:19 pm
IDA
-
SDF
7h 35m
1 stop
$558American Airlines
Sat, May 23 - Wed, May 27
American Airlines Logo
11:16 am - 11:39 pm
SDF
-
IDA
14h 23m
2 stops
American Airlines Logo
12:44 pm - 10:19 pm
IDA
-
SDF
7h 35m
1 stop
$616American Airlines
Tue, May 19 - Thu, May 21
United Airlines Logo
5:35 am - 3:34 pm
SDF
-
IDA
11h 59m
2 stops
United Airlines Logo
2:30 pm - 11:59 pm
IDA
-
SDF
7h 29m
2 stops
$618United Airlines
Sat, May 23 - Wed, May 27
American Airlines Logo
7:16 am - 12:14 pm
SDF
-
IDA
6h 58m
1 stop
American Airlines Logo
12:44 pm - 10:19 pm
IDA
-
SDF
7h 35m
1 stop
$631American Airlines
Sun, May 31 - Thu, Jun 4
United Airlines Logo
3:25 pm - 9:50 am
SDF
-
IDA
20h 25m
1 stop
United Airlines Logo
10:35 am - 11:59 pm
IDA
-
SDF
11h 24m
2 stops
$636United Airlines
Mon, Jun 1 - Sat, Jun 6
American Airlines Logo
6:51 am - 1:38 pm
SDF
-
IDA
8h 47m
1 stop
American Airlines Logo
12:44 pm - 10:19 pm
IDA
-
SDF
7h 35m
1 stop
$645American Airlines
Mon, Jun 1 - Thu, Jun 4
American Airlines Logo
7:45 pm - 1:38 pm
SDF
-
IDA
19h 53m
2 stops
American Airlines Logo
12:44 pm - 10:19 pm
IDA
-
SDF
7h 35m
1 stop
$654American Airlines
Mon, Jun 1 - Thu, Jun 4

Alaska Airlines flights from Louisville to Idaho Falls

Our best Alaska Airlines deals on Louisville to Idaho Falls flight tickets
Alaska Airlines
Apr 3
SDF10:49 amLouisville Intl
14h 03m
2 stops
IDA10:52 pmIdaho Falls Fanning Field
Apr 7
IDA6:00 amIdaho Falls Fanning Field
13h 30m
2 stops
SDF9:30 pmLouisville Intl
$844
Alaska Airlines
Apr 20
SDF6:07 amLouisville Intl
12h 12m
2 stops
IDA4:19 pmIdaho Falls Fanning Field
Apr 23
IDA6:00 amIdaho Falls Fanning Field
10h 30m
2 stops
SDF6:30 pmLouisville Intl
$926

United Airlines flights from Louisville to Idaho Falls

Our best United Airlines deals on Louisville to Idaho Falls flight tickets
United Airlines
Mar 31
SDF9:00 amLouisville Intl
8h 39m
1 stop
IDA3:39 pmIdaho Falls Fanning Field
Apr 4
IDA6:45 amIdaho Falls Fanning Field
5h 46m
1 stop
SDF2:31 pmLouisville Intl
$555
United Airlines
May 23
SDF5:35 amLouisville Intl
11h 59m
2 stops
IDA3:34 pmIdaho Falls Fanning Field
May 27
IDA2:30 pmIdaho Falls Fanning Field
7h 29m
2 stops
SDF11:59 pmLouisville Intl
$618
United Airlines
Jun 1
SDF3:25 pmLouisville Intl
20h 25m
1 stop
IDA9:50 amIdaho Falls Fanning Field
Jun 6
IDA10:35 amIdaho Falls Fanning Field
11h 24m
2 stops
SDF11:59 pmLouisville Intl
$636

momondo 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, momondo users made 832,500 searches. Data last updated March 20, 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

Price

Cheapest round-trip

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 5/23

6:51 am-1:38 pm

1 stop8h 47m

Idaho Falls Fanning Field

Wed 5/27

12:44 pm-10:19 pm

1 stop7h 35m

$450
Quickest round-trip

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 8/6

7:00 am-11:32 am

1 stop6h 32m

Idaho Falls Fanning Field

Mon 8/10

2:20 pm-11:06 pm

1 stop6h 46m

$479

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

9:00 am-3:39 pm

1 stop8h 39m

Idaho Falls Fanning Field

Sat 4/4

6:45 am-2:31 pm

1 stop5h 46m

$555

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 5/23

10:47 am-10:15 pm

2 stops13h 28m

Idaho Falls Fanning Field

Wed 5/27

12:44 pm-10:19 pm

1 stop7h 35m

$558

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 5/19

11:16 am-11:39 pm

2 stops14h 23m

Idaho Falls Fanning Field

Thu 5/21

12:44 pm-10:19 pm

1 stop7h 35m

$616

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 5/23

5:35 am-3:34 pm

2 stops11h 59m

Idaho Falls Fanning Field

Wed 5/27

2:30 pm-11:59 pm

2 stops7h 29m

$618

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sun 5/31

7:16 am-12:14 pm

1 stop6h 58m

Idaho Falls Fanning Field

Thu 6/4

12:44 pm-10:19 pm

1 stop7h 35m

$631

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Mon 6/1

3:25 pm-9:50 am

1 stop20h 25m

Idaho Falls Fanning Field

Sat 6/6

10:35 am-11:59 pm

2 stops11h 24m

$636

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Mon 6/1

6:51 am-1:38 pm

1 stop8h 47m

Idaho Falls Fanning Field

Thu 6/4

12:44 pm-10:19 pm

1 stop7h 35m

$645

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Mon 6/1

7:45 pm-1:38 pm

2 stops19h 53m

Idaho Falls Fanning Field

Thu 6/4

12:44 pm-10:19 pm

1 stop7h 35m

$654

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Louisville to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Louisville Intl to Idaho Falls Fanning Field?

Delta, Allegiant Air, and United Airlines are the most popular carriers operating from Louisville Intl to Idaho Falls Fanning Field

What airlines fly to Idaho Falls?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Idaho Falls from Louisville according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 3 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.

When to book flights from Louisville to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Idaho Falls (SDF to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Idaho Falls

Fastest flight time

6h 24m

Direct flights

None
The fastest flight from Louisville to Idaho Falls takes 6h 24m
There are no direct flights from Louisville to Idaho Falls. There are no popular flight routes from Louisville to Idaho Falls.
Search flight deals

  • How far is Louisville Intl to Idaho Falls Fanning Field by plane?

    The distance between Louisville Intl and Idaho Falls Fanning Field is about 1412.3 mi. 6h 24m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Louisville Intl Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from Louisville Intl Airport to Idaho Falls Fanning Field Airport refresh daily.

  • How many operators does momondo search for flights from Louisville Intl Airport to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Idaho Falls Fanning Field Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Louisville to Idaho Falls?

Best airlines flying from Louisville to Idaho Falls

Compare and see reviews for airlines that fly from Louisville to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $341Free CancellationRating
7.4
9,450 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

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

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Idaho Falls?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Louisville to Idaho Falls. momondo saves you time and could save you money on your trip.

Can I find flights from Louisville to Idaho Falls with flexible booking policies on momondo?

momondo does allow users to show only those flights to Idaho Falls from Louisville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Louisville to Idaho Falls?

momondo helps you find the best flight between Louisville and Idaho Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Louisville to Idaho Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to Idaho Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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