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Cheap flights from Idaho to Louisville from $131

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Louisville departing on 8/4. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:10 pm - 10:32 am
BOI
-
SDF
9h 22m
1 stop
Delta Logo
7:54 pm - 11:59 pm
SDF
-
BOI
6h 05m
1 stop
$337Delta
Mon, Aug 10 - Tue, Aug 11
Southwest Logo
6:30 am - 5:20 pm
GEG
-
SDF
7h 50m
1 stop
Southwest Logo
7:10 pm - 10:40 pm
SDF
-
GEG
6h 30m
1 stop
$376Southwest
Fri, Sep 4 - Thu, Sep 10
Southwest Logo
6:30 am - 5:20 pm
GEG
-
SDF
7h 50m
1 stop
Southwest Logo
3:20 pm - 10:00 pm
SDF
-
GEG
9h 40m
2 stops
$381Southwest
Fri, Sep 4 - Thu, Sep 10
Southwest Logo
6:55 am - 10:35 pm
GEG
-
SDF
12h 40m
2 stops
Southwest Logo
3:20 pm - 10:40 pm
SDF
-
GEG
10h 20m
2 stops
$386Southwest
Fri, Sep 4 - Thu, Sep 10
Delta Logo
5:30 am - 3:50 pm
BOI
-
SDF
8h 20m
1 stop
Delta Logo
6:50 am - 1:42 pm
SDF
-
BOI
8h 52m
1 stop
$401Delta
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
2:40 pm - 10:59 pm
BOI
-
SDF
6h 19m
1 stop
United Airlines Logo
8:00 am - 3:31 pm
SDF
-
BOI
9h 31m
2 stops
$406United Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
5:00 am - 2:29 pm
BOI
-
SDF
7h 29m
1 stop
United Airlines Logo
7:10 am - 11:28 am
SDF
-
BOI
6h 18m
1 stop
$411United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
2:44 pm - 10:31 pm
BOI
-
SDF
5h 47m
1 stop
United Airlines Logo
10:23 am - 10:40 pm
SDF
-
BOI
14h 17m
2 stops
$416United Airlines
Tue, Aug 25 - Sat, Aug 29
American Airlines Logo
6:21 am - 5:30 pm
BOI
-
SDF
9h 09m
1 stop
American Airlines Logo
4:01 pm - 10:11 pm
SDF
-
BOI
8h 10m
1 stop
$437American Airlines
Tue, Aug 4 - Mon, Aug 10
American Airlines Logo
12:49 pm - 11:46 pm
GEG
-
SDF
7h 57m
1 stop
American Airlines Logo
6:48 am - 1:39 pm
SDF
-
GEG
9h 51m
1 stop
$449American Airlines
Thu, Jul 30 - Tue, Aug 4

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Delta flights from Idaho to Louisville

Our best Delta deals on Idaho to Louisville flight tickets
Delta
Aug 10
BOI11:10 pmBoise Air Term. Gowen Fld
9h 22m
1 stop
SDF10:32 amLouisville Intl
Aug 11
SDF7:54 pmLouisville Intl
6h 05m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$337
Delta
Aug 4
BOI5:30 amBoise Air Term. Gowen Fld
8h 20m
1 stop
SDF3:50 pmLouisville Intl
Aug 11
SDF6:50 amLouisville Intl
8h 52m
1 stop
BOI1:42 pmBoise Air Term. Gowen Fld
$401
Delta
Aug 4
BOI5:30 amBoise Air Term. Gowen Fld
8h 20m
1 stop
SDF3:50 pmLouisville Intl
Aug 10
SDF3:25 pmLouisville Intl
8h 32m
1 stop
BOI9:57 pmBoise Air Term. Gowen Fld
$429

Southwest flights from Idaho to Louisville

Our best Southwest deals on Idaho to Louisville flight tickets
Southwest
Sep 4
GEG6:30 amSpokane
7h 50m
1 stop
SDF5:20 pmLouisville Intl
Sep 10
SDF7:10 pmLouisville Intl
6h 30m
1 stop
GEG10:40 pmSpokane
$376
Southwest
Sep 4
GEG6:30 amSpokane
7h 50m
1 stop
SDF5:20 pmLouisville Intl
Sep 10
SDF3:20 pmLouisville Intl
9h 40m
2 stops
GEG10:00 pmSpokane
$381
Southwest
Sep 4
GEG6:55 amSpokane
12h 40m
2 stops
SDF10:35 pmLouisville Intl
Sep 10
SDF3:20 pmLouisville Intl
10h 20m
2 stops
GEG10:40 pmSpokane
$386

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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, momondo users made 832,500 searches. Data last updated July 8, 2026.
Use the filters below to find and compare flights from Idaho to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Mon 8/10

11:10 pm-10:32 am

1 stop9h 22m

Louisville Intl

Tue 8/11

7:54 pm-11:59 pm

1 stop6h 05m

$337

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 9/4

6:30 am-5:20 pm

1 stop7h 50m

Louisville Intl

Thu 9/10

7:10 pm-10:40 pm

1 stop6h 30m

$376

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 9/4

6:30 am-5:20 pm

1 stop7h 50m

Louisville Intl

Thu 9/10

3:20 pm-10:00 pm

2 stops9h 40m

$381

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Fri 9/4

6:55 am-10:35 pm

2 stops12h 40m

Louisville Intl

Thu 9/10

3:20 pm-10:40 pm

2 stops10h 20m

$386

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/4

5:30 am-3:50 pm

1 stop8h 20m

Louisville Intl

Tue 8/11

6:50 am-1:42 pm

1 stop8h 52m

$401

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/4

2:40 pm-10:59 pm

1 stop6h 19m

Louisville Intl

Tue 8/11

8:00 am-3:31 pm

2 stops9h 31m

$406
Quickest round-trip

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/25

5:00 am-2:29 pm

1 stop7h 29m

Louisville Intl

Sat 8/29

7:10 am-11:28 am

1 stop6h 18m

$411

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/25

2:44 pm-10:31 pm

1 stop5h 47m

Louisville Intl

Sat 8/29

10:23 am-10:40 pm

2 stops14h 17m

$416

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 8/4

6:21 am-5:30 pm

1 stop9h 09m

Louisville Intl

Mon 8/10

4:01 pm-10:11 pm

1 stop8h 10m

$437

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Thu 7/30

12:49 pm-11:46 pm

1 stop7h 57m

Louisville Intl

Tue 8/4

6:48 am-1:39 pm

1 stop9h 51m

$449

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 Louisville from

How to get the cheapest flight ticket from Idaho to Louisville

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 month to fly to Louisville?

If you are unable to visit Louisville during the month of August, then departing from Idaho during the month October is also very affordable. Most momondo users find prices during this month for around $306.

Cheap Idaho to Louisville flight deals and tips

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

Fastest flight time

5h 17m

Direct flights

None
The fastest flight from Idaho to Louisville takes 5h 17m
There are no direct flights from Idaho to Louisville. There are no popular flight routes from Idaho to Louisville.
Search flight deals

Frequently asked questions about flying from Idaho to Louisville

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

    Prices for flights from Idaho to Louisville Intl Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Idaho to Louisville

Compare and see reviews for airlines that fly from Idaho to Louisville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,783 reviews
Search American Airlines flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,948 reviews
Search United Airlines flights
DeltaPriceFrom $329Free CancellationRating
7.8
8,451 reviews
Search Delta flights
SouthwestPriceFrom $372Free CancellationRating
7.9
4,249 reviews
Search Southwest flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
Bardstown
West Baden Springs
New Albany
Shepherdsville
Elizabeth
Charlestown
Corydon
Brandenburg
Georgetown
Springfield

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Louisville from Idaho.

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

All flight searches from Idaho to Louisville on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Louisville.

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

If you are not ready to book a flight from Idaho to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.

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