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$552+ Cheap flights from Kentucky to Australia

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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Kentucky to Australia

Cheapest flights from Kentucky to Australia
Explore the most affordable flight options available from Kentucky to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:50 pmBNA - SYD
1 stop23h 10mQantas Airways
Fri 1/237:15 pmSYD - BNA
2 stops38h 09mQantas Airways
Deal found 12/22$939
This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:21 amBNA - BNE
2 stops29h 59mDelta
Fri 1/910:40 amBNE - BNA
2 stops27h 50mDelta
Deal found 12/21$952
This Delta deal was found by Cheapflights users on 12/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:36 pmBNA - BNE
2 stops45h 44mDelta
Wed 12/3111:05 amBNE - BNA
1 stop25h 45mDelta
Deal found 12/23$966
This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:05 pmBNA - BNE
2 stops45h 25mUnited Airlines
Wed 12/3111:40 amBNE - BNA
2 stops37h 45mUnited Airlines
Deal found 12/23$1,058
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:09 pmBNA - BNE
1 stop22h 21mUnited Airlines
Sun 12/2811:40 amBNE - BNA
1 stop20h 27mUnited Airlines
Deal found 12/22$1,190
This oojo deal was found by Cheapflights users on 12/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:10 pmCVG - SYD
1 stop26h 45mQantas Airways
Fri 12/262:05 pmSYD - CVG
1 stop21h 47mQantas Airways
Deal found 12/20$1,237
This United Airlines deal was found by Cheapflights users on 12/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:09 amBNA - MEL
2 stops30h 51mUnited Airlines
Thu 5/2810:55 amMEL - BNA
2 stops25h 39mUnited Airlines
Deal found 12/20$1,240
This Qantas Airways deal was found by Cheapflights users on 12/20. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:56 pmBNA - MEL
1 stop25h 34mMultiple Airlines
Thu 5/289:45 amMEL - BNA
1 stop22h 00mMultiple Airlines
Deal found 12/20$1,268
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:30 amBNA - BNE
1 stop31h 00mUnited Airlines
Fri 1/97:35 amBNE - BNA
2 stops31h 11mUnited Airlines
Deal found 12/22$1,302
This Priceline deal was found by Cheapflights users on 12/20. 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.
Wed 12/2412:10 pmCVG - SYD
1 stop26h 45mMultiple Airlines
Fri 12/2611:20 amSYD - CVG
2 stops46h 40mMultiple Airlines
Deal found 12/20$1,372
This United Airlines deal was found by Cheapflights users on 12/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:18 pmSDF - MEL
2 stops26h 42mUnited Airlines
Mon 12/291:00 pmMEL - SDF
2 stops25h 30mUnited Airlines
Deal found 12/20$1,480
This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:36 pmBNA - MEL
2 stops44h 24mDelta
Wed 12/3110:10 amMEL - BNA
1 stop27h 40mDelta
Deal found 12/21$1,497

Find flight deals from Kentucky to Australia

Keep the following information in mind while searching for Kentucky to Australia flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$893
(BestPriceTravel)

One-way from

$552
(United Airlines)

Popular in

January

Cheapest in

November

Average price

$1,621
Provider with most accurate pricing for Louisville Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Sydney Kingsford Smith flights.
Search Deals
From Kentucky to Australia
Search Deals
One-way flight from Kentucky to Australia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($227 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to Australia 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 December 23, 2025.
Use the filters below to find and compare flights from Kentucky to Australia that are best for you.

Fly from

Kentucky

Fly to

Australia

Route

Depart

Return

Price

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Wed 2/4

2:23 pm-6:30 am

2 stops24h 07m

Brisbane

Wed 2/11

7:40 pm-4:47 pm

1 stop37h 07m

$925

NashvilleSydney

BNA - SYD

BNASYD

Nashville Intl

Mon 3/2

4:55 pm-8:50 pm

2 stops34h 55m

Sydney Kingsford Smith

Mon 3/16

11:20 am-4:51 pm

1 stop21h 31m

$938

NashvilleSydney

BNA - SYD

BNASYD

Nashville Intl

Tue 3/3

6:03 pm-5:40 pm

2 stops30h 37m

Sydney Kingsford Smith

Wed 3/25

11:20 am-4:51 pm

1 stop21h 31m

$939

CincinnatiBrisbane

CVG - BNE

CVGBNE

Cincinnati Cinci./N. Kentucky

Sat 2/7

6:40 pm-8:45 am

2 stops47h 05m

Brisbane

Sat 2/21

10:45 am-10:13 pm

2 stops26h 28m

$956

CincinnatiMelbourne

CVG - MEL

CVGMEL

Cincinnati Cinci./N. Kentucky

Thu 2/5

12:34 pm-3:35 pm

3 stops35h 01m

Melbourne

Thu 2/12

12:00 pm-11:42 pm

2 stops27h 42m

$963

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Wed 2/4

8:15 am-8:45 am

2 stops32h 30m

Brisbane

Wed 2/11

6:10 am-7:50 pm

3 stops29h 40m

$970

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Sun 3/8

5:00 pm-9:30 am

1 stop24h 30m

Melbourne

Sun 3/15

12:00 pm-4:51 pm

1 stop20h 51m

$973

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Fri 4/24

7:25 am-8:15 am

2 stops33h 50m

Melbourne

Thu 5/7

10:55 am-9:34 pm

2 stops25h 39m

$1,000

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Sun 2/15

2:50 pm-10:00 am

2 stops26h 10m

Melbourne

Sun 2/22

11:30 am-4:26 pm

2 stops21h 56m

$1,000

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Sun 5/10

8:15 am-7:05 am

1 stop31h 50m

Brisbane

Fri 5/29

10:00 am-2:51 pm

2 stops43h 51m

$1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 60 results
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Best time to book a flight from Kentucky to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Kentucky 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 Kentucky to Australia

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

Currently, June is the cheapest month in which you can book a flight from Kentucky to Australia (average of $648). Flying from Kentucky to Australia in August is currently the most expensive (average of $1,129). 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 KY to AU?

Find hourly flight availability from Kentucky to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

It’s typically best to fly out from Kentucky to Australia in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying in the evening, which is usually more expensive.

Related info for your journey

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

  • How long is the flight from Kentucky to Australia?

    For as low as $925, American Airlines can have you in Australia from Kentucky in 24h 07m. Kentucky and Australia are separated by a distance of 8920 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kentucky to Australia 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 Kentucky to Australia?

    Currently, June is the cheapest month in which you can book a flight from Kentucky to Australia (average of $648). Flying from Kentucky to Australia in August is currently the most expensive (average of $1,129). 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 Kentucky to Australia

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Top 4 airlines flying from Kentucky to Australia

Discover the top 4 airlines that operate flights from Kentucky to Australia. 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$921Average$1,359FlexibilityNo cancel feeOn-time69%
DeltaCheapest$979Average$1,351FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,260Average$1,614FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,380Average$1,684FlexibilityNo cancel feeOn-time78%

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