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Kentucky

$74+ Cheap flights from Idaho to Kentucky

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SDF
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheap flight deals from Idaho to Kentucky

Keep the following information in mind while searching for Idaho to Kentucky flight deals. Data was last updated August 17, 2025.

Round-trip from

$147
(Priceline)

One-way from

$74
(Priceline)

Popular in

March

Cheapest in

August

Average price

$378
From Idaho to Kentucky
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One-way flight from Idaho to Kentucky
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Highest demand for flights based on searches. 17% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Idaho to Kentucky

Cheapest flights from Idaho to Kentucky
Explore the most affordable flight options available from Idaho to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This Priceline deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1111:53 amGEG - BNA
1 stop10h 47mFrontier
Sun 9/146:15 amBNA - GEG
1 stop6h 43mFrontier
Deal found 8/16$147
This FlightHub deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1911:53 amGEG - BNA
1 stop6h 50mFrontier
Fri 9/266:15 amBNA - GEG
1 stop6h 43mFrontier
Deal found 8/16$163
This Orbitz deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:22 pmBOI - BNA
1 stop11h 18mFrontier
Fri 9/196:15 amBNA - BOI
1 stop6h 22mFrontier
Deal found 8/15$165
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:22 pmBOI - BNA
1 stop11h 18mFrontier
Sun 9/146:15 amBNA - BOI
1 stop6h 22mFrontier
Deal found 8/14$168
This FlightHub deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2412:28 pmBOI - BNA
1 stop10h 31mFrontier
Sat 10/254:38 pmBNA - BOI
1 stop20h 05mFrontier
Deal found 8/15$173
This FlightHub deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:22 pmBOI - BNA
1 stop11h 18mMultiple Airlines
Wed 10/13:26 pmBNA - BOI
1 stop22h 55mMultiple Airlines
Deal found 8/16$201
This Expedia deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:22 pmBOI - BNA
1 stop11h 18mMultiple Airlines
Tue 10/77:00 amBNA - BOI
1 stop8h 36mMultiple Airlines
Deal found 8/16$207
This FlightHub deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:26 pmBOI - BNA
1 stop16h 05mMultiple Airlines
Sun 9/76:15 amBNA - BOI
1 stop6h 22mMultiple Airlines
Deal found 8/15$209
This Expedia deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:28 pmBOI - BNA
1 stop8h 40mMultiple Airlines
Thu 9/116:15 amBNA - BOI
1 stop6h 22mMultiple Airlines
Deal found 8/15$211
This Expedia deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:53 amGEG - BNA
1 stop6h 50mMultiple Airlines
Mon 9/296:47 pmBNA - GEG
1 stop7h 32mMultiple Airlines
Deal found 8/15$212
This Priceline deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1212:28 pmBOI - BNA
1 stop10h 31mFrontier
Thu 10/166:12 amBNA - BOI
1 stop6h 31mFrontier
Deal found 8/14$213
This FlightHub deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:33 pmBOI - BNA
1 stop25h 14mMultiple Airlines
Sun 11/1610:07 pmBNA - BOI
1 stop14h 16mMultiple Airlines
Deal found 8/16$214

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
Use the filters below to find and compare flights from Idaho to Kentucky that are best for you.

Fly from

Idaho

Fly to

Kentucky

Route

Depart

Return

Price

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Thu 9/11

11:53 am-12:40 am

1 stop10h 47m

Nashville Intl

Sun 9/14

6:15 am-10:58 am

1 stop6h 43m

$147

SpokaneNashville

GEG - BNA

GEGBNA

Spokane

Fri 9/19

11:53 am-8:43 pm

1 stop6h 50m

Nashville Intl

Fri 9/26

6:15 am-10:58 am

1 stop6h 43m

$163

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Sun 9/14

12:22 pm-12:40 am

1 stop11h 18m

Nashville Intl

Fri 9/19

6:15 am-11:37 am

1 stop6h 22m

$165

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Thu 9/11

12:22 pm-12:40 am

1 stop11h 18m

Nashville Intl

Sun 9/14

6:15 am-11:37 am

1 stop6h 22m

$168

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Sun 10/12

12:28 pm-10:40 am

1 stop21h 12m

Nashville Intl

Thu 10/16

6:12 am-11:43 am

1 stop6h 31m

$168

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Fri 10/24

12:28 pm-11:59 pm

1 stop10h 31m

Nashville Intl

Sat 10/25

4:38 pm-11:43 am

1 stop20h 05m

$173

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Thu 9/18

12:22 pm-12:40 am

1 stop11h 18m

Nashville Intl

Sun 9/21

8:42 pm-8:31 pm

1 stop24h 49m

$201

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Thu 9/25

12:22 pm-12:40 am

1 stop11h 18m

Nashville Intl

Wed 10/1

3:26 pm-1:21 pm

1 stop22h 55m

$201

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Thu 10/2

12:22 pm-12:40 am

1 stop11h 18m

Nashville Intl

Tue 10/7

7:00 am-2:36 pm

1 stop8h 36m

$207

BoiseNashville

BOI - BNA

BOIBNA

Boise Air Term. Gowen Fld

Fri 9/5

9:26 pm-2:31 pm

1 stop16h 05m

Nashville Intl

Sun 9/7

6:15 am-11:37 am

1 stop6h 22m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 60 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, January is the cheapest month in which you can book a flight from Idaho to Kentucky (average of $299). Flying from Idaho to Kentucky in April is currently the most expensive (average of $369). 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.

What is the cheapest time of day to fly from ID to KY?

Find hourly flight availability from Idaho to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Kentucky as you normally would.

Reviews of airlines servicing Kentucky

Get insights into the airlines that provide service to Kentucky. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kentucky. Reviews last updated August 17, 2025.
Read through reviews of airlines operating flights from Idaho to Kentucky, such as Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,986 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,919 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Kentucky. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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, January is the cheapest month in which you can book a flight from Idaho to Kentucky (average of $299). Flying from Idaho to Kentucky in April is currently the most expensive (average of $369). 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

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Alternative routes for Idaho to Kentucky

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Idaho to Kentucky

Discover the top 4 airlines that operate flights from Idaho to Kentucky. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$234Average$371FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$348Average$446FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$348Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$376Average$644FlexibilityNo cancel feeOn-time69%

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