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

American Airlines, United Airlines, and Southwest are the most popular carriers operating from Louisville Intl to Idaho

What airlines fly to Idaho?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Idaho from Louisville according to our data. Delta is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Louisville Intl Airport to Idaho is 4 as of February 2026.

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

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.

What documentation or ID do you need to fly to Idaho?

The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$180 Cheap Flights from Louisville to Idaho in 2026

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Find the cheapest flights from Louisville to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:37 am - 12:41 pm

SDF

JAC

7h 04m

1 stop

1:25 pm - 11:11 pm

JAC

SDF

7h 46m

1 stop

$329American Airlines

Tue, Apr 14 - Tue, Apr 21

9:00 am - 3:21 pm

SDF

JAC

8h 21m

1 stop

2:40 pm - 10:37 pm

JAC

SDF

5h 57m

1 stop

$347United Airlines

Fri, Feb 27 - Tue, Mar 3

6:33 am - 1:00 pm

SDF

BOI

8h 27m

1 stop

1:31 pm - 9:26 pm

BOI

SDF

5h 55m

1 stop

$359American Airlines

Tue, Mar 17 - Tue, Mar 24

2:17 pm - 9:09 pm

SDF

BOI

8h 52m

2 stops

11:30 pm - 9:28 am

BOI

SDF

7h 58m

1 stop

$364Delta

Tue, Mar 17 - Tue, Mar 24

6:33 am - 1:00 pm

SDF

BOI

8h 27m

1 stop

1:35 pm - 11:58 pm

BOI

SDF

8h 23m

1 stop

$367American Airlines

Tue, Mar 17 - Tue, Mar 24

2:17 pm - 9:09 pm

SDF

BOI

8h 52m

2 stops

11:30 pm - 1:37 pm

BOI

SDF

12h 07m

2 stops

$370Delta

Tue, Mar 17 - Tue, Mar 24

1:58 pm - 5:52 pm

SDF

JAC

5h 54m

1 stop

2:33 pm - 9:59 pm

JAC

SDF

5h 26m

1 stop

$379United Airlines

Sat, Mar 14 - Sat, Mar 21

3:35 pm - 1:05 am

SDF

GEG

12h 30m

2 stops

6:15 am - 4:55 pm

GEG

SDF

7h 40m

1 stop

$407Southwest

Thu, Apr 2 - Sat, Apr 18

3:30 pm - 11:30 pm

SDF

BOI

10h 00m

2 stops

10:35 am - 12:50 am

BOI

SDF

12h 15m

1 stop

$409Southwest

Tue, May 5 - Sun, May 10

6:00 am - 3:26 pm

SDF

IDA

11h 26m

2 stops

6:00 am - 7:00 pm

IDA

SDF

11h 00m

2 stops

$692Alaska Airlines

Mon, May 18 - Sat, May 23

Delta flights from Louisville to Idaho

Our best Delta deals on Louisville to Idaho flight tickets

Delta

Mar 17

SDF2:17 pmLouisville Intl

8h 52m

2 stops

BOI9:09 pmBoise Air Term. Gowen Fld

Mar 24

BOI11:30 pmBoise Air Term. Gowen Fld

7h 58m

1 stop

SDF9:28 amLouisville Intl

$364

Delta

Mar 17

SDF2:17 pmLouisville Intl

8h 52m

2 stops

BOI9:09 pmBoise Air Term. Gowen Fld

Mar 24

BOI11:30 pmBoise Air Term. Gowen Fld

12h 07m

2 stops

SDF1:37 pmLouisville Intl

$370

Delta

Mar 17

SDF2:17 pmLouisville Intl

8h 52m

2 stops

BOI9:09 pmBoise Air Term. Gowen Fld

Mar 24

BOI11:30 pmBoise Air Term. Gowen Fld

7h 58m

1 stop

SDF9:28 amLouisville Intl

$372

American Airlines flights from Louisville to Idaho

Our best American Airlines deals on Louisville to Idaho flight tickets

American Airlines

Apr 14

SDF7:37 amLouisville Intl

7h 04m

1 stop

JAC12:41 pmJackson Hole

Apr 21

JAC1:25 pmJackson Hole

7h 46m

1 stop

SDF11:11 pmLouisville Intl

$329

American Airlines

Mar 17

SDF6:33 amLouisville Intl

8h 27m

1 stop

BOI1:00 pmBoise Air Term. Gowen Fld

Mar 24

BOI1:31 pmBoise Air Term. Gowen Fld

5h 55m

1 stop

SDF9:26 pmLouisville Intl

$359

American Airlines

Mar 17

SDF6:33 amLouisville Intl

8h 27m

1 stop

BOI1:00 pmBoise Air Term. Gowen Fld

Mar 24

BOI1:35 pmBoise Air Term. Gowen Fld

8h 23m

1 stop

SDF11:58 pmLouisville Intl

$367

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 4/14

7:37 am-12:41 pm

1 stop7h 04m

Jackson Hole

Tue 4/21

1:25 pm-11:11 pm

1 stop7h 46m

$329

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Fri 2/27

9:00 am-3:21 pm

1 stop8h 21m

Jackson Hole

Tue 3/3

2:40 pm-10:37 pm

1 stop5h 57m

$347

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 3/17

6:33 am-1:00 pm

1 stop8h 27m

Boise Air Term. Gowen Fld

Tue 3/24

1:31 pm-9:26 pm

1 stop5h 55m

$359

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 3/17

2:17 pm-9:09 pm

2 stops8h 52m

Boise Air Term. Gowen Fld

Tue 3/24

11:30 pm-9:28 am

1 stop7h 58m

$364

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 3/17

6:33 am-1:00 pm

1 stop8h 27m

Boise Air Term. Gowen Fld

Tue 3/24

1:35 pm-11:58 pm

1 stop8h 23m

$367

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 3/17

2:17 pm-9:09 pm

2 stops8h 52m

Boise Air Term. Gowen Fld

Tue 3/24

11:30 pm-1:37 pm

2 stops12h 07m

$370

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Sat 3/14

1:58 pm-5:52 pm

1 stop5h 54m

Jackson Hole

Sat 3/21

2:33 pm-9:59 pm

1 stop5h 26m

$379

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Thu 4/2

3:35 pm-1:05 am

2 stops12h 30m

Spokane

Sat 4/18

6:15 am-4:55 pm

1 stop7h 40m

$407

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Tue 5/5

3:30 pm-11:30 pm

2 stops10h 00m

Boise Air Term. Gowen Fld

Sun 5/10

10:35 am-12:50 am

1 stop12h 15m

$409

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Mon 5/18

6:00 am-3:26 pm

2 stops11h 26m

Idaho Falls Fanning Field

Sat 5/23

6:00 am-7:00 pm

2 stops11h 00m

$692

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Idaho

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

Prices

Airlines

What is the cheapest month to fly to Idaho?

In general, September is the cheapest month to fly from Louisville to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $311. If you don’t want to visit Idaho in September, then you should wait until August to fly from Louisville, when ticket prices are also cheap, with an average price of $332.

Can stopping save me money on Louisville to Idaho flights?

You could potentially save up to 35% on your flight if you consider stops on a Louisville to Idaho flight.

Cheap Louisville to Idaho flight deals and tips

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

Fastest flight time	5h 54m
Direct flights	None

The fastest flight from Louisville to Idaho takes 5h 54m

There are no direct flights from Louisville to Idaho. There are no popular flight routes from Louisville to Idaho.

Search flight deals

When did momondo last update prices for flights from Louisville Intl Airport to Idaho?
Prices for flights from Louisville Intl Airport to Idaho refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Idaho?
The number of operators available for flights from Louisville Intl Airport to Idaho is 4 as of February 2026.
How old do you have to be to fly from Louisville Intl Airport to Idaho?
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.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to Idaho

Compare and see reviews for airlines that fly from Louisville to Idaho with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,204 reviews	Search Delta flights
American Airlines	PriceFrom $287	Free Cancellation	Rating 7.2 11,294 reviews	Search American Airlines flights
United Airlines	PriceFrom $341	Free Cancellation	Rating 7.4 9,299 reviews	Search United Airlines flights
Southwest	PriceFrom $346	Free Cancellation	Rating 8.0 4,285 reviews	Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Idaho. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo helps you find the best flight between Louisville and Idaho 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 right now. Can momondo alert me if prices change?

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