What is the cheapest airline that flies from Idaho to Kentucky?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Idaho to Kentucky

What airlines fly to Kentucky?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Kentucky from Idaho according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Kentucky. Keep in mind that there are 4 different airlines that fly to Kentucky on a routine basis, so you have a few additional options to choose from.

How long is the flight from Idaho to Kentucky?

On average, it takes 6h to fly from Idaho to Kentucky if you fly out of Idaho Falls (the most popular airport in Idaho) and into Louisville (the most popular airport in Kentucky). If you’re flying out of Boise and into Louisville, then the flight time is around 6h 09m.

When did momondo last update prices for flights from Idaho to Kentucky?

Prices for flights from Idaho to Kentucky refresh daily.

How many operators does momondo search for flights from Idaho to Kentucky?

The number of operators available for flights from Idaho to Kentucky is 6 as of March 2026.

How old do you have to be to fly from Idaho to Kentucky?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Kentucky.

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

The required travel and health documents for your Kentucky trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kentucky. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$142 Cheap Flights from Idaho to Kentucky in 2026

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Find the cheapest flights from Idaho to Kentucky

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:33 pm - 6:13 pm

GEG

BNA

27h 40m

1 stop

7:17 pm - 11:38 am

BNA

GEG

18h 21m

1 stop

$171Frontier

Fri, May 8 - Tue, May 12

12:33 pm - 6:13 pm

GEG

BNA

27h 40m

1 stop

7:17 pm - 11:38 am

BNA

GEG

18h 21m

1 stop

$196Frontier

Fri, May 8 - Tue, May 12

11:39 pm - 8:35 am

BOI

BNA

7h 56m

1 stop

4:20 pm - 11:46 pm

BNA

BOI

8h 26m

1 stop

$283Delta

Wed, May 13 - Wed, May 20

10:40 pm - 10:17 am

GEG

BNA

9h 37m

1 stop

4:20 pm - 11:06 pm

BNA

GEG

8h 46m

1 stop

$285Delta

Tue, May 26 - Tue, Jun 2

1:22 pm - 11:48 pm

GEG

SDF

7h 26m

1 stop

9:00 am - 12:32 pm

SDF

GEG

6h 32m

1 stop

$293American Airlines

Tue, Apr 21 - Tue, Apr 28

1:46 pm - 10:39 pm

GEG

SDF

5h 53m

1 stop

10:00 am - 9:11 pm

SDF

GEG

14h 11m

2 stops

$298United Airlines

Tue, Apr 21 - Tue, Apr 28

1:53 pm - 11:33 pm

BOI

BNA

8h 40m

1 stop

4:35 pm - 10:38 pm

BNA

BOI

7h 03m

1 stop

$305American Airlines

Wed, May 6 - Tue, May 12

1:46 pm - 10:39 pm

GEG

SDF

5h 53m

1 stop

3:37 pm - 9:16 pm

SDF

GEG

8h 39m

1 stop

$324United Airlines

Tue, Apr 28 - Sat, May 2

4:20 pm - 10:40 pm

BOI

BNA

5h 20m

1 stop

8:15 am - 3:25 pm

BNA

BOI

8h 10m

2 stops

$338Southwest

Mon, Apr 13 - Wed, Apr 15

6:30 am - 3:50 pm

GEG

SDF

6h 20m

1 stop

8:25 am - 1:45 pm

SDF

GEG

8h 20m

1 stop

$375Southwest

Tue, May 5 - Tue, May 12

Frontier flights from Idaho to Kentucky

Our best Frontier deals on Idaho to Kentucky flight tickets

Frontier

May 8

GEG12:33 pmSpokane

27h 40m

1 stop

BNA6:13 pmNashville Intl

May 12

BNA7:17 pmNashville Intl

18h 21m

1 stop

GEG11:38 amSpokane

$171

Frontier

May 8

GEG12:33 pmSpokane

27h 40m

1 stop

BNA6:13 pmNashville Intl

May 12

BNA7:17 pmNashville Intl

18h 21m

1 stop

GEG11:38 amSpokane

$196

Frontier

May 8

GEG12:33 pmSpokane

27h 40m

1 stop

BNA6:13 pmNashville Intl

May 12

BNA7:17 pmNashville Intl

18h 21m

1 stop

GEG11:38 amSpokane

$216

American Airlines flights from Idaho to Kentucky

Our best American Airlines deals on Idaho to Kentucky flight tickets

American Airlines

Apr 21

GEG1:22 pmSpokane

7h 26m

1 stop

SDF11:48 pmLouisville Intl

Apr 28

SDF9:00 amLouisville Intl

6h 32m

1 stop

GEG12:32 pmSpokane

$293

American Airlines

May 6

BOI1:53 pmBoise Air Term. Gowen Fld

8h 40m

1 stop

BNA11:33 pmNashville Intl

May 12

BNA4:35 pmNashville Intl

7h 03m

1 stop

BOI10:38 pmBoise Air Term. Gowen Fld

$305

American Airlines

May 6

BOI2:14 pmBoise Air Term. Gowen Fld

8h 19m

2 stops

BNA11:33 pmNashville Intl

May 12

BNA4:35 pmNashville Intl

7h 03m

1 stop

BOI10:38 pmBoise Air Term. Gowen Fld

$310

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Fri 5/8

12:33 pm-6:13 pm

1 stop27h 40m

Nashville Intl

Tue 5/12

7:17 pm-11:38 am

1 stop18h 21m

$171

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Fri 5/8

12:33 pm-6:13 pm

1 stop27h 40m

Nashville Intl

Tue 5/12

7:17 pm-11:38 am

1 stop18h 21m

$196

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Wed 5/13

11:39 pm-8:35 am

1 stop7h 56m

Nashville Intl

Wed 5/20

4:20 pm-11:46 pm

1 stop8h 26m

$283

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Tue 5/26

10:40 pm-10:17 am

1 stop9h 37m

Nashville Intl

Tue 6/2

4:20 pm-11:06 pm

1 stop8h 46m

$285

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Tue 4/21

1:22 pm-11:48 pm

1 stop7h 26m

Louisville Intl

Tue 4/28

9:00 am-12:32 pm

1 stop6h 32m

$293

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Tue 4/21

1:46 pm-10:39 pm

1 stop5h 53m

Louisville Intl

Tue 4/28

10:00 am-9:11 pm

2 stops14h 11m

$298

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Wed 5/6

1:53 pm-11:33 pm

1 stop8h 40m

Nashville Intl

Tue 5/12

4:35 pm-10:38 pm

1 stop7h 03m

$305

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Tue 4/28

1:46 pm-10:39 pm

1 stop5h 53m

Louisville Intl

Sat 5/2

3:37 pm-9:16 pm

1 stop8h 39m

$324

Quickest round-trip

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Mon 4/13

4:20 pm-10:40 pm

1 stop5h 20m

Nashville Intl

Wed 4/15

8:15 am-3:25 pm

2 stops8h 10m

$338

SpokaneLouisville

GEG - SDF

GEGSDF

Spokane

Tue 5/5

6:30 am-3:50 pm

1 stop6h 20m

Louisville Intl

Tue 5/12

8:25 am-1:45 pm

1 stop8h 20m

$375

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 Idaho to Kentucky

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

Other information

What is the cheapest month to fly to Kentucky?

If you’re not able to fly to Kentucky in August, then January is your next best option. Flight prices from Idaho to Kentucky during January average around $432.

Can stopping save me money on Idaho to Kentucky flights?

You could potentially save up to 29% on your flight if you consider stops on a Idaho to Kentucky flight.

Cheap Idaho to Kentucky flight deals and tips

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

Fastest flight time	5h 23m
Direct flights	None

The fastest flight from Idaho to Kentucky takes 5h 23m

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

Search flight deals

When did momondo last update prices for flights from Idaho to Kentucky?
Prices for flights from Idaho to Kentucky refresh daily.
How many operators does momondo search for flights from Idaho to Kentucky?
The number of operators available for flights from Idaho to Kentucky is 6 as of March 2026.
How old do you have to be to fly from Idaho to Kentucky?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Kentucky.
What documentation or ID do you need to fly to Kentucky?
The required travel and health documents for your Kentucky trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Kentucky. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to Kentucky

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $234	Free Cancellation	Rating 7.9 8,320 reviews	Search Delta flights
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.1 11,492 reviews	Search American Airlines flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 9,469 reviews	Search United Airlines flights
Southwest	PriceFrom $372	Free Cancellation	Rating 8.0 4,329 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to Kentucky for you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kentucky from Idaho.

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

Price alerts on flights to Kentucky from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.