Cheap flights from Idaho to Kentucky from $125

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 Kentucky departing on 10/8. 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
0 bags

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Find the cheapest flights from Idaho to Kentucky

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:25 pm - 11:24 am
BOI
-
BNA
20h 59m
1 stop
Frontier Logo
12:09 pm - 12:30 pm
BNA
-
BOI
25h 21m
1 stop
$251Frontier
Sun, Jun 21 - Sat, Jun 27
Frontier Logo
12:34 pm - 11:19 am
GEG
-
BNA
20h 45m
1 stop
Frontier Logo
12:09 pm - 11:37 am
BNA
-
GEG
25h 28m
1 stop
$262Frontier
Wed, Jul 29 - Tue, Aug 4
Delta Logo
2:23 pm - 10:29 pm
GEG
-
BNA
6h 06m
1 stop
Delta Logo
6:45 pm - 11:06 pm
BNA
-
GEG
6h 21m
1 stop
$263Delta
Fri, Jul 3 - Thu, Jul 9
United Airlines Logo
7:25 pm - 8:51 am
GEG
-
BNA
11h 26m
2 stops
United Airlines Logo
7:00 am - 12:37 pm
BNA
-
GEG
7h 37m
1 stop
$268United Airlines
Thu, May 28 - Tue, Jun 2
American Airlines Logo
12:51 pm - 10:06 pm
GEG
-
BNA
7h 15m
1 stop
American Airlines Logo
3:21 pm - 8:43 pm
BNA
-
GEG
7h 22m
1 stop
$273American Airlines
Tue, Jun 9 - Mon, Jun 15
American Airlines Logo
12:51 pm - 10:06 pm
GEG
-
BNA
7h 15m
1 stop
American Airlines Logo
3:21 pm - 8:43 pm
BNA
-
GEG
7h 22m
1 stop
$281American Airlines
Tue, Jun 9 - Mon, Jun 15
Delta Logo
3:30 pm - 11:44 pm
BOI
-
BNA
7h 14m
1 stop
Delta Logo
7:00 am - 2:22 pm
BNA
-
BOI
8h 22m
1 stop
$293Delta
Wed, Sep 2 - Wed, Sep 9
Southwest Logo
2:20 pm - 10:00 pm
BOI
-
BNA
6h 40m
1 stop
Southwest Logo
6:15 am - 1:40 pm
BNA
-
BOI
8h 25m
2 stops
$303Southwest
Wed, Sep 2 - Wed, Sep 9
United Airlines Logo
5:00 am - 1:37 pm
GEG
-
BNA
6h 37m
1 stop
United Airlines Logo
11:21 am - 9:14 pm
BNA
-
GEG
11h 53m
2 stops
$304United Airlines
Tue, Aug 18 - Sat, Aug 22
Southwest Logo
7:10 am - 3:35 pm
BOI
-
SDF
6h 25m
1 stop
Southwest Logo
11:45 am - 8:45 pm
SDF
-
BOI
11h 00m
1 stop
$400Southwest
Tue, Jun 9 - Tue, Jun 16

Frontier flights from Idaho to Kentucky

Our best Frontier deals on Idaho to Kentucky flight tickets
Frontier
Jun 21
BOI1:25 pmBoise Air Term. Gowen Fld
20h 59m
1 stop
BNA11:24 amNashville Intl
Jun 27
BNA12:09 pmNashville Intl
25h 21m
1 stop
BOI12:30 pmBoise Air Term. Gowen Fld
$251
Frontier
Jul 29
GEG12:34 pmSpokane
20h 45m
1 stop
BNA11:19 amNashville Intl
Aug 4
BNA12:09 pmNashville Intl
25h 28m
1 stop
GEG11:37 amSpokane
$262
Frontier
Jun 4
BOI1:33 pmBoise Air Term. Gowen Fld
27h 58m
1 stop
CVG7:31 pmCincinnati Cinci./N. Kentucky
Jun 10
CVG8:15 pmCincinnati Cinci./N. Kentucky
18h 15m
1 stop
BOI12:30 pmBoise Air Term. Gowen Fld
$272

Delta flights from Idaho to Kentucky

Our best Delta deals on Idaho to Kentucky flight tickets
Delta
Jul 3
GEG2:23 pmSpokane
6h 06m
1 stop
BNA10:29 pmNashville Intl
Jul 9
BNA6:45 pmNashville Intl
6h 21m
1 stop
GEG11:06 pmSpokane
$263
Delta
Sep 2
BOI4:05 pmBoise Air Term. Gowen Fld
6h 57m
1 stop
BNA12:02 amNashville Intl
Sep 8
BNA3:00 pmNashville Intl
9h 04m
1 stop
BOI11:04 pmBoise Air Term. Gowen Fld
$293
Delta
Sep 3
GEG1:30 pmSpokane
6h 51m
1 stop
BNA10:21 pmNashville Intl
Sep 7
BNA7:16 pmNashville Intl
6h 19m
1 stop
GEG11:35 pmSpokane
$295

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Kentucky 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 May 14, 2026.
Use the filters below to find and compare flights from Idaho to Kentucky that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Sun 6/21

1:25 pm-11:24 am

1 stop20h 59m

Nashville Intl

Sat 6/27

12:09 pm-12:30 pm

1 stop25h 21m

$251

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Wed 7/29

12:34 pm-11:19 am

1 stop20h 45m

Nashville Intl

Tue 8/4

12:09 pm-11:37 am

1 stop25h 28m

$262
Quickest round-trip

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Fri 7/3

2:23 pm-10:29 pm

1 stop6h 06m

Nashville Intl

Thu 7/9

6:45 pm-11:06 pm

1 stop6h 21m

$263

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Thu 5/28

7:25 pm-8:51 am

2 stops11h 26m

Nashville Intl

Tue 6/2

7:00 am-12:37 pm

1 stop7h 37m

$268

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Tue 6/9

12:51 pm-10:06 pm

1 stop7h 15m

Nashville Intl

Mon 6/15

3:21 pm-8:43 pm

1 stop7h 22m

$273

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Tue 6/9

12:51 pm-10:06 pm

1 stop7h 15m

Nashville Intl

Mon 6/15

3:21 pm-8:43 pm

1 stop7h 22m

$281

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Wed 9/2

3:30 pm-11:44 pm

1 stop7h 14m

Nashville Intl

Wed 9/9

7:00 am-2:22 pm

1 stop8h 22m

$293

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Wed 9/2

2:20 pm-10:00 pm

1 stop6h 40m

Nashville Intl

Wed 9/9

6:15 am-1:40 pm

2 stops8h 25m

$303

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Tue 8/18

5:00 am-1:37 pm

1 stop6h 37m

Nashville Intl

Sat 8/22

11:21 am-9:14 pm

2 stops11h 53m

$304

BoiseLouisville

BOI - SDF

BOISDF

Boise Air Term. Gowen Fld

Tue 6/9

7:10 am-3:35 pm

1 stop6h 25m

Louisville Intl

Tue 6/16

11:45 am-8:45 pm

1 stop11h 00m

$400

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 Kentucky from

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

What is the cheapest month to fly to Kentucky?

If you’re not able to fly to Kentucky in October, then July is your next best option. Flight prices from Idaho to Kentucky during July average around $234.

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 19m

Direct flights

None
The fastest flight from Idaho to Kentucky takes 5h 19m
There are no direct flights from Idaho to Kentucky. There are no popular flight routes from Idaho to Kentucky.

Frequently asked questions about flying from Idaho to Kentucky

  • 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?

  • 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
DeltaPriceFrom $234Free CancellationRating
7.9
8,453 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,664 reviews
Search American Airlines flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,710 reviews
Search United Airlines flights
SouthwestPriceFrom $372Free CancellationRating
7.9
4,296 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.

An easier way to manage your Kentucky trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Sat 6/13
Sat 6/20

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Popular cities in Kentucky

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