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 36% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

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

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 July 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.

$168 Cheap Flights from Louisville to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

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.

7:54 pm - 11:59 pm

SDF

BOI

6h 05m

1 stop

5:30 am - 3:50 pm

BOI

SDF

8h 20m

1 stop

$311Delta

Wed, Aug 12 - Sat, Aug 15

2:35 pm - 7:45 pm

SDF

BOI

7h 10m

1 stop

6:00 am - 2:15 pm

BOI

SDF

6h 15m

1 stop

$324Southwest

Sat, Oct 10 - Wed, Oct 14

12:34 pm - 6:17 pm

SDF

IDA

7h 43m

2 stops

6:57 pm - 8:51 am

IDA

SDF

11h 54m

2 stops

$339Delta

Tue, Sep 15 - Tue, Sep 29

11:50 am - 11:20 pm

SDF

BOI

13h 30m

1 stop

3:25 pm - 10:25 am

BOI

SDF

17h 00m

2 stops

$340Southwest

Wed, Aug 12 - Sat, Aug 15

1:15 pm - 10:25 pm

SDF

BOI

11h 10m

2 stops

12:35 pm - 10:30 pm

BOI

SDF

7h 55m

1 stop

$341Southwest

Wed, Aug 12 - Tue, Aug 18

1:15 pm - 10:25 pm

SDF

BOI

11h 10m

2 stops

6:00 am - 5:55 pm

BOI

SDF

9h 55m

2 stops

$346Southwest

Wed, Aug 12 - Tue, Aug 18

8:00 am - 1:29 pm

SDF

IDA

7h 29m

1 stop

2:25 pm - 10:31 pm

IDA

SDF

6h 06m

1 stop

$358United Airlines

Tue, Aug 18 - Mon, Aug 24

9:00 am - 6:51 pm

SDF

GEG

12h 51m

2 stops

1:37 pm - 10:31 pm

GEG

SDF

5h 54m

1 stop

$360United Airlines

Sat, Aug 29 - Sat, Sep 5

7:03 am - 11:30 am

SDF

IDA

6h 27m

1 stop

1:43 pm - 9:25 pm

IDA

SDF

5h 42m

1 stop

$364American Airlines

Wed, Aug 12 - Mon, Aug 17

1:19 pm - 7:04 pm

SDF

JAC

7h 45m

1 stop

1:47 pm - 9:25 pm

JAC

SDF

5h 38m

1 stop

$395American Airlines

Tue, Aug 25 - Tue, Sep 1

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Louisville to Idaho

Our best United Airlines deals on Louisville to Idaho flight tickets

United Airlines

Aug 12

SDF8:00 amLouisville Intl

7h 38m

1 stop

BOI1:38 pmBoise Air Term. Gowen Fld

Aug 18

BOI5:00 amBoise Air Term. Gowen Fld

7h 29m

1 stop

SDF2:29 pmLouisville Intl

$311

United Airlines

Aug 20

SDF6:00 amLouisville Intl

9h 38m

2 stops

BOI1:38 pmBoise Air Term. Gowen Fld

Aug 27

BOI2:44 pmBoise Air Term. Gowen Fld

5h 47m

1 stop

SDF10:31 pmLouisville Intl

$329

United Airlines

Aug 18

SDF8:00 amLouisville Intl

7h 29m

1 stop

IDA1:29 pmIdaho Falls Fanning Field

Aug 24

IDA2:25 pmIdaho Falls Fanning Field

6h 06m

1 stop

SDF10:31 pmLouisville Intl

$358

Southwest flights from Louisville to Idaho

Our best Southwest deals on Louisville to Idaho flight tickets

Southwest

Oct 10

SDF2:35 pmLouisville Intl

7h 10m

1 stop

BOI7:45 pmBoise Air Term. Gowen Fld

Oct 14

BOI6:00 amBoise Air Term. Gowen Fld

6h 15m

1 stop

SDF2:15 pmLouisville Intl

$324

Southwest

Aug 12

SDF1:15 pmLouisville Intl

11h 10m

2 stops

BOI10:25 pmBoise Air Term. Gowen Fld

Aug 18

BOI12:35 pmBoise Air Term. Gowen Fld

7h 55m

1 stop

SDF10:30 pmLouisville Intl

$341

Southwest

Aug 20

SDF8:30 amLouisville Intl

9h 45m

2 stops

BOI4:15 pmBoise Air Term. Gowen Fld

Aug 27

BOI11:30 amBoise Air Term. Gowen Fld

9h 05m

2 stops

SDF10:35 pmLouisville Intl

$344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 8/12

7:54 pm-11:59 pm

1 stop6h 05m

Boise Air Term. Gowen Fld

Sat 8/15

5:30 am-3:50 pm

1 stop8h 20m

$311

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Sat 10/10

2:35 pm-7:45 pm

1 stop7h 10m

Boise Air Term. Gowen Fld

Wed 10/14

6:00 am-2:15 pm

1 stop6h 15m

$324

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 9/15

12:34 pm-6:17 pm

2 stops7h 43m

Idaho Falls Fanning Field

Tue 9/29

6:57 pm-8:51 am

2 stops11h 54m

$339

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 8/12

11:50 am-11:20 pm

1 stop13h 30m

Boise Air Term. Gowen Fld

Sat 8/15

3:25 pm-10:25 am

2 stops17h 00m

$340

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 8/12

1:15 pm-10:25 pm

2 stops11h 10m

Boise Air Term. Gowen Fld

Tue 8/18

12:35 pm-10:30 pm

1 stop7h 55m

$341

LouisvilleBoise

SDF - BOI

SDFBOI

Louisville Intl

Wed 8/12

1:15 pm-10:25 pm

2 stops11h 10m

Boise Air Term. Gowen Fld

Tue 8/18

6:00 am-5:55 pm

2 stops9h 55m

$346

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Tue 8/18

8:00 am-1:29 pm

1 stop7h 29m

Idaho Falls Fanning Field

Mon 8/24

2:25 pm-10:31 pm

1 stop6h 06m

$358

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Sat 8/29

9:00 am-6:51 pm

2 stops12h 51m

Spokane

Sat 9/5

1:37 pm-10:31 pm

1 stop5h 54m

$360

Quickest round-trip

LouisvilleIdaho Falls

SDF - IDA

SDFIDA

Louisville Intl

Wed 8/12

7:03 am-11:30 am

1 stop6h 27m

Idaho Falls Fanning Field

Mon 8/17

1:43 pm-9:25 pm

1 stop5h 42m

$364

LouisvilleJackson

SDF - JAC

SDFJAC

Louisville Intl

Tue 8/25

1:19 pm-7:04 pm

1 stop7h 45m

Jackson Hole

Tue 9/1

1:47 pm-9:25 pm

1 stop5h 38m

$395

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 $306. If you don’t want to visit Idaho in September, then you should wait until April to fly from Louisville, when ticket prices are also cheap, with an average price of $381.

Can stopping save me money on Louisville to Idaho flights?

You could potentially save up to 38% 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	6h 03m
Direct flights	None

The fastest flight from Louisville to Idaho takes 6h 03m

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

Search flight deals

Frequently asked questions about flying from Louisville to Idaho

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 July 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
American Airlines	PriceFrom $306	Free Cancellation	Rating 7.1 11,834 reviews	Search American Airlines flights
Delta	PriceFrom $324	Free Cancellation	Rating 7.8 8,476 reviews	Search Delta flights
United Airlines	PriceFrom $341	Free Cancellation	Rating 7.4 10,020 reviews	Search United Airlines flights
Southwest	PriceFrom $401	Free Cancellation	Rating 8.0 4,241 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.