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$464+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Cheap flight deals from Kentucky to Australia

Keep the following information in mind while searching for Kentucky to Australia flight deals. Data was last updated November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$930
(Expedia)

One-way from

$464
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,142
Provider with most accurate pricing for Louisville Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Sydney Kingsford Smith flights.
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From Kentucky to Australia
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One-way flight from Kentucky to Australia
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Highest demand for flights based on searches. 13% potential increase in price ($216 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 20, 2025.

This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:22 pmBNA - BNE
1 stop20h 38mAmerican Airlines
Sun 12/289:40 amBNE - BNA
1 stop25h 57mAmerican Airlines
Deal found 11/19$931
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/194:13 pmBNA - BNE
1 stop20h 47mAmerican Airlines
Thu 11/279:40 amBNE - BNA
1 stop21h 03mAmerican Airlines
Deal found 11/19$932
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 11/1910:50 amBNA - BNE
3 stops28h 40mUnited Airlines
Thu 11/2711:40 amBNE - BNA
2 stops23h 11mUnited Airlines
Deal found 11/19$1,041
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Sun 11/2311:15 amCVG - BNE
2 stops29h 15mUnited Airlines
Tue 11/2511:40 amBNE - CVG
2 stops22h 14mUnited Airlines
Deal found 11/19$1,193
This United Airlines deal was found by Cheapflights users on 11/18. 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.
Sat 11/222:55 pmCVG - BNE
2 stops25h 35mUnited Airlines
Mon 11/2411:40 amBNE - CVG
2 stops24h 28mUnited Airlines
Deal found 11/18$1,194
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:54 pmCVG - SYD
1 stop22h 01mQantas Airways
Tue 11/252:05 pmSYD - CVG
1 stop21h 52mQantas Airways
Deal found 11/19$1,214
This Qantas Airways deal was found by Cheapflights users on 11/18. 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.
Fri 12/512:18 pmCVG - MEL
1 stop24h 42mQantas Airways
Sun 12/216:00 amMEL - CVG
2 stops26h 05mQantas Airways
Deal found 11/18$1,242
This American Airlines deal was found by Cheapflights users on 11/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:51 amCVG - SYD
1 stop30h 04mAmerican Airlines
Sun 12/72:05 pmSYD - CVG
1 stop21h 52mAmerican Airlines
Deal found 11/18$1,254
This American Airlines deal was found by Cheapflights users on 11/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:35 pmCVG - SYD
2 stops28h 25mAmerican Airlines
Sat 12/611:20 amSYD - CVG
2 stops27h 33mAmerican Airlines
Deal found 11/18$1,257
This American Airlines deal was found by Cheapflights users on 11/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:00 amCVG - MEL
1 stop31h 00mAmerican Airlines
Sun 12/214:05 pmMEL - CVG
1 stop19h 47mAmerican Airlines
Deal found 11/18$1,259
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/1712:45 pmBNA - MEL
2 stops27h 45mUnited Airlines
Thu 1/11:00 pmMEL - BNA
1 stop34h 26mUnited Airlines
Deal found 11/20$1,300
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/296:11 pmSDF - MEL
2 stops47h 49mUnited Airlines
Tue 1/131:00 pmMEL - SDF
2 stops41h 26mUnited Airlines
Deal found 11/17$1,306

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 November 20, 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

CincinnatiBrisbane

CVG - BNE

CVGBNE

Cincinnati Cinci./N. Kentucky

Sat 2/28

6:40 pm-8:45 am

2 stops47h 05m

Brisbane

Tue 3/10

5:05 am-6:00 pm

3 stops50h 55m

$930

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Tue 12/2

4:22 pm-5:00 am

1 stop20h 38m

Brisbane

Sun 12/28

9:40 am-7:37 pm

1 stop25h 57m

$931

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Mon 3/16

7:50 pm-7:20 am

1 stop20h 30m

Brisbane

Fri 3/20

9:40 am-6:32 pm

1 stop23h 52m

$947

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Fri 1/9

4:55 pm-8:20 am

2 stops23h 25m

Brisbane

Wed 1/21

11:05 am-11:50 pm

1 stop28h 45m

$951

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Sun 1/4

4:32 pm-8:20 am

2 stops47h 48m

Brisbane

Wed 1/21

11:05 am-3:59 pm

1 stop20h 54m

$965

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-4:41 pm

1 stop21h 21m

$972

NashvilleSydney

BNA - SYD

BNASYD

Nashville Intl

Sun 3/1

4:55 pm-8:50 pm

2 stops34h 55m

Sydney Kingsford Smith

Fri 3/6

11:20 am-4:46 pm

1 stop22h 26m

$972

CincinnatiBrisbane

CVG - BNE

CVGBNE

Cincinnati Cinci./N. Kentucky

Fri 3/13

3:25 pm-7:45 am

2 stops26h 20m

Brisbane

Fri 4/3

10:00 am-4:22 pm

2 stops44h 22m

$976

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Fri 2/13

12:35 pm-10:00 am

2 stops28h 25m

Melbourne

Fri 2/20

1:00 pm-4:55 pm

1 stop20h 55m

$994

CincinnatiBrisbane

CVG - BNE

CVGBNE

Cincinnati Cinci./N. Kentucky

Fri 3/13

6:40 pm-1:30 pm

3 stops52h 50m

Brisbane

Fri 4/3

10:00 am-4:22 pm

2 stops44h 22m

$1,001

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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 January is currently the most expensive (average of $1,079). 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 November 20, 2025.

It’s typically best to fly out from Kentucky to Australia in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying at noon, 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 $947, Air Canada can have you in Australia from Kentucky in 20h 30m. Kentucky and Australia are separated by a distance of 8920 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Kentucky to Australia one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $516. Delta flights start at $542 while deals on American Airlines start at $561 one-way.

  • 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 January is currently the most expensive (average of $1,079). 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

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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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$921Average$1,336FlexibilityNo cancel feeOn-time69%
DeltaCheapest$979Average$1,338FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,260Average$1,553FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,380Average$1,684FlexibilityNo cancel feeOn-time78%

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