Kentucky

$253+ Cheap flights from Idaho to Kentucky

BOI — SDF
Dec 4 — Dec 111
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1. Tell us where you want to go

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Cheap flight deals from Idaho to Kentucky

Cheapest flights from Idaho to Kentucky

Sat 12/56:15 am -
1 stop6h 02m
Sat 12/123:20 pm -
1 stop8h 07m
Deal found 11/2$363
Sat 12/55:15 am -
2 stops9h 38m
Sat 12/126:00 am -
1 stop9h 17m
Deal found 11/3$368
Sat 12/56:06 am -
2 stops12h 54m
Sat 12/121:14 pm -
2 stops11h 44m
Deal found 11/2$373
Wed 12/26:45 pm -
2 stops12h 23m
Wed 12/96:35 am -
2 stops12h 41m
Deal found 10/31$374
Fri 12/111:47 pm -
1 stop8h 17m
Tue 12/156:00 am -
1 stop9h 44m
Deal found 11/3$379
Tue 12/12:48 pm -
1 stop5h 37m
Tue 12/83:20 pm -
1 stop8h 07m
Deal found 11/1$383
Wed 12/26:20 am -
2 stops10h 35m
Wed 12/98:50 am -
2 stops8h 20m
Deal found 11/1$384
Thu 12/101:05 pm -
1 stop7h 50m
Mon 12/144:15 pm -
1 stop9h 00m
Deal found 11/3$391
Thu 12/101:39 pm -
1 stop5h 58m
Sun 12/136:22 am -
1 stop8h 37m
Deal found 11/1$395
Thu 12/107:18 pm -
2 stops13h 01m
Mon 12/146:35 am -
1 stop8h 07m
Deal found 11/1$396
Mon 12/141:05 pm -
1 stop7h 50m
Mon 12/2110:40 am -
1 stop9h 30m
Deal found 11/1$425
Wed 11/181:41 pm -
1 stop8h 17m
Sun 11/223:38 pm -
1 stop8h 21m
Deal found 11/3$449

Find flight deals from Idaho to Kentucky

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$363
(United Airlines)

One-way from

$253
(United Airlines)

Popular in

March

Cheapest in

May

Average price

$685
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Louisville Intl flight deals.
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Louisville Intl flights.
From Idaho to Kentucky
One-way flight from Idaho to Kentucky
Highest demand for flights based on searches. 8% potential increase in price ($54 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
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
Quickest round-trip

HaileyLouisville

SUN Hailey Sun Valley-Friedman - SDF Louisville Intl

SUNSDF

Hailey Sun Valley-Friedman

Thu 12/3

2:45 pm-10:25 pm

1 stop5h 40m

Louisville Intl

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$253

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Tue 11/10

1:24 pm-9:36 pm

1 stop6h 12m

Louisville Intl

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$311

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Tue 11/10

5:00 am-4:57 pm

2 stops9h 57m

Louisville Intl

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$316

BoiseLexington

BOI Boise Air Term. Gowen Fld - LEX Lexington Blue Grass

BOILEX

Boise Air Term. Gowen Fld

Sun 11/15

2:49 pm-10:33 am

3 stops41h 44m

Lexington Blue Grass

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$351

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Wed 1/13

7:10 am-5:15 pm

1 stop8h 05m

Louisville Intl

Wed 1/20

11:30 am-6:15 pm

1 stop8h 45m

$363

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Sat 12/5

6:15 am-2:17 pm

1 stop6h 02m

Louisville Intl

Sat 12/12

3:20 pm-9:27 pm

1 stop8h 07m

$363

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Wed 1/13

10:45 am-9:32 pm

2 stops8h 47m

Louisville Intl

Wed 1/20

4:05 pm-8:48 pm

1 stop6h 43m

$368

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Sat 12/5

5:15 am-4:53 pm

2 stops9h 38m

Louisville Intl

Sat 12/12

6:00 am-1:17 pm

1 stop9h 17m

$368

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Wed 12/2

1:47 pm-11:05 pm

1 stop7h 18m

Louisville Intl

Wed 12/9

6:35 am-5:16 pm

2 stops12h 41m

$368

BoiseLouisville

BOI Boise Air Term. Gowen Fld - SDF Louisville Intl

BOISDF

Boise Air Term. Gowen Fld

Wed 12/2

6:20 am-6:55 pm

2 stops10h 35m

Louisville Intl

Wed 12/9

8:50 am-3:10 pm

2 stops8h 20m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 35 resultsSorted by cheapest first
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Best time to book a flight from Idaho to Kentucky

Have a flexible travel schedule? Discover the best time to fly to Kentucky from Idaho with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Idaho to Kentucky

What is the cheapest month to book a flight from Idaho to Kentucky?

Currently, May is the cheapest month in which you can book a flight from Idaho to Kentucky (average of $434). Flying from Idaho to Kentucky in March is currently the most expensive (average of $833). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Idaho to Kentucky?

Airfare is below average for this route at the moment.
Idaho to Kentucky flights typically cost between $580 and $765 in December.
The cheapest round-trip price found within the last 5 days was $363 on United Airlines (Dec 5-Dec 12).

Reviews of airlines servicing Kentucky

Read through reviews of airlines operating flights from Idaho to Kentucky, such as Southwest,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • How long is the flight from Idaho to Kentucky?

    Departing from Idaho to Kentucky will take you 6h 02m. There are 1625 mi between Idaho and Kentucky. This flight may include one or multiple stops.

  • Can I find deals for flights from Idaho to Kentucky that include hotel bookings?

    Yes. In addition to deals on Idaho to Kentucky flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Kentucky?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Kentucky.

  • Can I find deals for business class flights from Idaho to Kentucky?

    Yes. Cheapflights offers flight deals from Idaho to Kentucky by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Kentucky?

    Currently, May is the cheapest month in which you can book a flight from Idaho to Kentucky (average of $434). Flying from Idaho to Kentucky in March is currently the most expensive (average of $833). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Idaho to Kentucky

Top 4 airlines flying from Idaho to Kentucky

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$532FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$280Average$567FlexibilityNo cancel feeOn-time71%
DeltaCheapest$329Average$517FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$372Average$556FlexibilityNo cancel feeOn-time63%

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