How long is the flight from Kentucky to Idaho?

Flight times from Kentucky to Idaho vary, but if you’re flying out of Louisville and flying into Boise (one of the most popular routes), then the duration is 6h 04m on average. Another popular route from Kentucky to Idaho is flying from Lexington to Boise, which will take roughly 6h 49m. Keep in mind that layovers or delays could extend your travel time.

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

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

What airlines fly to Idaho?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Idaho from Kentucky according to our data. United Airlines is the first choice among our users, with 43% 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.

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

Prices for flights from Kentucky to Idaho are refreshed on a daily basis.

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

As of February 2025, there are 6 operators available to choose from for flights from Kentucky to Idaho.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kentucky to Idaho.

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

The required travel and health documents for your Idaho 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 Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$97 Cheap Flights from Kentucky to Idaho in 2025

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Find the cheapest flights from Kentucky to Idaho

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One-way

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Cheap round-trip flights

These are some of the best round-trip flight deals from Kentucky to Idaho that have been recently found on momondo from popular airlines, departing in the coming months.

6:05 am - 2:05 pmBNA-BOI

9h 00m1 stop

2:05 pm - 12:12 amBOI-BNA

9h 07m1 stop

$193Delta

Find Deal

Wed, Apr 2 - Tue, Apr 8

6:05 am - 4:00 pmBNA-BOI

10h 55m2 stops

4:40 pm - 12:12 amBOI-BNA

6h 32m1 stop

$198Delta

Find Deal

Wed, Apr 2 - Tue, Apr 8

5:03 pm - 12:36 pmBNA-BOI

20h 33m1 stop

1:31 pm - 4:00 pmBOI-BNA

25h 29m1 stop

$225Spirit Airlines

Find Deal

Tue, Mar 25 - Mon, Mar 31

4:09 pm - 11:04 pmTYS-GEG

9h 55m2 stops

6:27 am - 7:19 pmGEG-TYS

9h 52m2 stops

$239American Airlines

Find Deal

Wed, Apr 2 - Wed, Apr 23

5:30 pm - 11:03 pmBNA-BOI

6h 33m1 stop

7:00 pm - 5:28 amBOI-BNA

9h 28m1 stop

$249United Airlines

Find Deal

Wed, Apr 2 - Sun, Apr 6

5:15 pm - 11:36 pmBNA-BOI

7h 21m1 stop

1:54 pm - 11:47 pmBOI-BNA

8h 53m2 stops

$290American Airlines

Find Deal

Wed, Mar 26 - Sat, Mar 29

9:52 pm - 1:39 pmBNA-BOI

40h 47m3 stops

2:34 pm - 2:58 pmBOI-BNA

23h 24m1 stop

$299Spirit Airlines

Find Deal

Mon, Apr 14 - Mon, Apr 21

3:25 pm - 9:22 pmSDF-BOI

7h 57m1 stop

2:38 pm - 10:15 pmBOI-SDF

5h 37m1 stop

$307United Airlines

Find Deal

Tue, Apr 8 - Sat, Apr 12

6:50 pm - 12:50 amBNA-BOI

7h 00m1 stop

7:45 pm - 5:10 amBOI-BNA

8h 25m2 stops

$309Southwest

Find Deal

Mon, Apr 14 - Mon, Apr 21

10:50 pm - 9:10 amBNA-GEG

12h 20m1 stop

6:50 am - 8:55 pmGEG-BNA

12h 05m2 stops

$378Southwest

Find Deal

Thu, Jun 5 - Wed, Jun 11

Delta flights from Kentucky to Idaho

Our best Delta deals on Kentucky to Idaho flight tickets

Delta

Apr 2

BNA6:05 amNashville Intl

9h 00m

1 stop

BOI2:05 pmBoise Air Term. Gowen Fld

Apr 8

BOI2:05 pmBoise Air Term. Gowen Fld

9h 07m

1 stop

BNA12:12 amNashville Intl

$193

Find similar

Delta

Apr 2

BNA6:05 amNashville Intl

10h 55m

2 stops

BOI4:00 pmBoise Air Term. Gowen Fld

Apr 8

BOI4:40 pmBoise Air Term. Gowen Fld

6h 32m

1 stop

BNA12:12 amNashville Intl

$198

Find similar

Delta

Apr 23

BNA7:00 pmNashville Intl

6h 09m

1 stop

BOI12:09 amBoise Air Term. Gowen Fld

Apr 27

BOI2:10 pmBoise Air Term. Gowen Fld

8h 49m

1 stop

BNA11:59 pmNashville Intl

$201

Find similar

American Airlines flights from Kentucky to Idaho

Our best American Airlines deals on Kentucky to Idaho flight tickets

American Airlines

Apr 2

TYS4:09 pmKnoxville McGhee Tyson

9h 55m

2 stops

GEG11:04 pmSpokane

Apr 23

GEG6:27 amSpokane

9h 52m

2 stops

TYS7:19 pmKnoxville McGhee Tyson

$239

Find similar

American Airlines

Mar 26

BNA5:15 pmNashville Intl

7h 21m

1 stop

BOI11:36 pmBoise Air Term. Gowen Fld

Mar 29

BOI1:54 pmBoise Air Term. Gowen Fld

8h 53m

2 stops

BNA11:47 pmNashville Intl

$290

Find similar

American Airlines

Apr 2

TYS4:09 pmKnoxville McGhee Tyson

9h 55m

2 stops

GEG11:04 pmSpokane

Apr 23

GEG6:27 amSpokane

9h 52m

2 stops

TYS7:19 pmKnoxville McGhee Tyson

$294

Find similar

How to get the cheapest flight ticket from Kentucky 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

Other information

What is the cheapest month to fly to Idaho?

In general, February is the cheapest month to fly from Kentucky to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $381. If you don’t want to visit Idaho in February, then you should wait until December to fly from Kentucky, when ticket prices are also cheap, with an average price of $381.

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

Our data shows that Saturday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $400. On the other hand, Tuesday is the most expensive day to depart from Kentucky because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $602.

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

According to our data, the cheapest time of day to fly to Idaho is in the evening. momondo users have found flights departing from Kentucky to Idaho in the evening for as low as $407. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $586 per ticket.

Cheap Kentucky to Idaho flight deals and tips

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

Best Price Found	$97
Fastest flight time	5h 26m
Direct flights	None
Airports in Idaho	4 airports

The best one-way flight to Idaho from Kentucky in the past 72 hours is $97. The best round-trip flight deal from Kentucky to Idaho found on momondo in the last 72 hours is $193.

The fastest flight from Kentucky to Idaho takes 5h 26m

There are no direct flights from Kentucky to Idaho. Popular non-direct routes for this connection are Nashville Intl Airport - Boise Air Term. Gowen Fld Airport, Nashville Intl Airport - Spokane Airport and Cincinnati Cinci./N. Kentucky Airport - Boise Air Term. Gowen Fld Airport.

There are 4 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC)

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When did momondo last update prices for flights from Kentucky to Idaho?
Prices for flights from Kentucky to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Kentucky to Idaho?
As of February 2025, there are 6 operators available to choose from for flights from Kentucky to Idaho.
How old do you have to be to fly from Kentucky to Idaho?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kentucky to Idaho.
What documentation or ID do you need to fly to Idaho?
The required travel and health documents for your Idaho 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 Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Kentucky to Idaho

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $260	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $265	Free Cancellation	Rating 8.0 8,140 reviews	Search Delta flights
United Airlines	PriceFrom $324	Free Cancellation	Rating 7.4 8,723 reviews	Search United Airlines flights
Southwest	PriceFrom $381	Free Cancellation	Rating 8.1 4,362 reviews	Search Southwest flights

Why use momondo?

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

Finding the right flight to Idaho from Kentucky is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho quick and easy, saving you time and money.

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

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

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

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 Idaho from Kentucky.

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

Yes momondo offers price alerts on flights to Idaho from Kentucky. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.