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Cheap flights from Louisville to Idaho Falls from $349

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Idaho Falls departing on 3/31. 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
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.
United Airlines Logo
7:55 am - 1:29 pmSDF-IDA
7h 34m1 stop
United Airlines Logo
2:35 pm - 9:57 pmIDA-SDF
5h 22m1 stop
$349United Airlines
Find Deal
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
7:55 am - 1:29 pmSDF-IDA
7h 34m1 stop
United Airlines Logo
2:35 pm - 9:57 pmIDA-SDF
5h 22m1 stop
$384United Airlines
Find Deal
Tue, Mar 31 - Sun, Apr 5
United Airlines Logo
1:55 pm - 9:08 pmSDF-IDA
9h 13m2 stops
United Airlines Logo
2:35 pm - 9:57 pmIDA-SDF
5h 22m1 stop
$389United Airlines
Find Deal
Sat, Apr 4 - Tue, Apr 7
United Airlines Logo
1:55 pm - 9:08 pmSDF-IDA
9h 13m2 stops
United Airlines Logo
2:35 pm - 9:57 pmIDA-SDF
5h 22m1 stop
$424United Airlines
Find Deal
Sat, Apr 4 - Sun, Apr 5
United Airlines Logo
11:00 am - 5:22 pmSDF-IDA
8h 22m2 stops
United Airlines Logo
2:35 pm - 9:57 pmIDA-SDF
5h 22m1 stop
$435United Airlines
Find Deal
Tue, Mar 31 - Tue, Apr 7
Delta Logo
12:40 pm - 10:21 pmSDF-IDA
11h 41m2 stops
Delta Logo
6:45 pm - 9:34 amIDA-SDF
12h 49m2 stops
$441Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
United Airlines Logo
7:55 am - 1:29 pmSDF-IDA
7h 34m1 stop
United Airlines Logo
2:35 pm - 9:57 pmIDA-SDF
5h 22m1 stop
$444United Airlines
Find Deal
Tue, Mar 31 - Sat, Apr 4
Delta Logo
4:15 pm - 10:21 pmSDF-IDA
8h 06m2 stops
Delta Logo
6:00 am - 10:55 pmIDA-SDF
14h 55m2 stops
$517Delta
Find Deal
Tue, Mar 31 - Tue, Apr 7
Delta Logo
4:15 pm - 10:21 pmSDF-IDA
8h 06m2 stops
Delta Logo
6:00 am - 8:52 pmIDA-SDF
12h 52m2 stops
$602Delta
Find Deal
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
7:40 am - 12:22 pmSDF-IDA
6h 42m1 stop
American Airlines Logo
1:45 pm - 11:59 pmIDA-SDF
8h 14m1 stop
$739American Airlines
Find Deal
Thu, Apr 2 - Thu, Apr 9

United Airlines flights from Louisville to Idaho Falls

Our best United Airlines deals on Louisville to Idaho Falls flight tickets
United Airlines
Mar 31
SDF7:55 amLouisville Intl
7h 34m
1 stop
IDA1:29 pmIdaho Falls Fanning Field
Apr 7
IDA2:35 pmIdaho Falls Fanning Field
5h 22m
1 stop
SDF9:57 pmLouisville Intl
$349
Find similar
United Airlines
Mar 31
SDF7:55 amLouisville Intl
7h 34m
1 stop
IDA1:29 pmIdaho Falls Fanning Field
Apr 5
IDA2:35 pmIdaho Falls Fanning Field
5h 22m
1 stop
SDF9:57 pmLouisville Intl
$384
Find similar
United Airlines
Apr 4
SDF1:55 pmLouisville Intl
9h 13m
2 stops
IDA9:08 pmIdaho Falls Fanning Field
Apr 7
IDA2:35 pmIdaho Falls Fanning Field
5h 22m
1 stop
SDF9:57 pmLouisville Intl
$389
Find similar

Delta flights from Louisville to Idaho Falls

Our best Delta deals on Louisville to Idaho Falls flight tickets
Delta
Mar 3
SDF12:40 pmLouisville Intl
11h 41m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
Mar 4
IDA6:45 pmIdaho Falls Fanning Field
12h 49m
2 stops
SDF9:34 amLouisville Intl
$441
Find similar
Delta
Mar 31
SDF4:15 pmLouisville Intl
8h 06m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
Apr 7
IDA6:00 amIdaho Falls Fanning Field
14h 55m
2 stops
SDF10:55 pmLouisville Intl
$517
Find similar
Delta
Mar 31
SDF4:15 pmLouisville Intl
8h 06m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
Apr 4
IDA6:00 amIdaho Falls Fanning Field
12h 52m
2 stops
SDF8:52 pmLouisville Intl
$602
Find similar

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 November 3, 2025.
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

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

7:55 am-1:29 pm

1 stop7h 34m

Idaho Falls Fanning Field

Tue 4/7

2:35 pm-9:57 pm

1 stop5h 22m

$349

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

7:55 am-1:29 pm

1 stop7h 34m

Idaho Falls Fanning Field

Sun 4/5

2:35 pm-9:57 pm

1 stop5h 22m

$384

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 4/4

1:55 pm-9:08 pm

2 stops9h 13m

Idaho Falls Fanning Field

Tue 4/7

2:35 pm-9:57 pm

1 stop5h 22m

$389

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Sat 4/4

1:55 pm-9:08 pm

2 stops9h 13m

Idaho Falls Fanning Field

Sun 4/5

2:35 pm-9:57 pm

1 stop5h 22m

$424

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

11:00 am-5:22 pm

2 stops8h 22m

Idaho Falls Fanning Field

Tue 4/7

2:35 pm-9:57 pm

1 stop5h 22m

$435

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/3

12:40 pm-10:21 pm

2 stops11h 41m

Idaho Falls Fanning Field

Wed 3/4

6:45 pm-9:34 am

2 stops12h 49m

$441

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

7:55 am-1:29 pm

1 stop7h 34m

Idaho Falls Fanning Field

Sat 4/4

2:35 pm-9:57 pm

1 stop5h 22m

$444

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

4:15 pm-10:21 pm

2 stops8h 06m

Idaho Falls Fanning Field

Tue 4/7

6:00 am-10:55 pm

2 stops14h 55m

$517

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 3/31

4:15 pm-10:21 pm

2 stops8h 06m

Idaho Falls Fanning Field

Sat 4/4

6:00 am-8:52 pm

2 stops12h 52m

$602

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Thu 4/2

7:40 am-12:22 pm

1 stop6h 42m

Idaho Falls Fanning Field

Thu 4/9

1:45 pm-11:59 pm

1 stop8h 14m

$739

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 day to depart on your flight to Idaho Falls?

Our data shows that Thursday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $511. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $799.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the morning. Flights from Louisville to Idaho Falls during this time can be as low as $632. Try not to purchase tickets in the afternoon because they tend to be around $723. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights

None
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 30m 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
American AirlinesPriceFrom $323Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $343Free CancellationRating
7.4
8,997 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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