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$495+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
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 December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$939
(Air Canada)

One-way from

$495
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,782
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 December 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 December 1, 2025.

This Delta deal was found by Cheapflights users on 11/29. 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 12/18:10 pmBNA - BNE
1 stop20h 10mDelta
Sun 12/710:40 amBNE - BNA
1 stop23h 37mDelta
Deal found 11/29$947
This Air Canada deal was found by Cheapflights users on 11/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:00 pmBNA - BNE
2 stops27h 45mMultiple Airlines
Sun 12/2810:45 amBNE - BNA
2 stops25h 05mMultiple Airlines
Deal found 11/29$969
This oojo deal was found by Cheapflights users on 11/29. 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 11/29$973
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/18:30 amBNA - BNE
1 stop31h 00mUnited Airlines
Mon 12/811:40 amBNE - BNA
1 stop20h 23mUnited Airlines
Deal found 11/29$1,037
This United Airlines deal was found by Cheapflights users on 11/30. 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 12/25:07 pmBNA - BNE
1 stop22h 23mUnited Airlines
Sun 12/2811:40 amBNE - BNA
1 stop34h 46mUnited Airlines
Deal found 11/30$1,047
This Air Canada deal was found by Cheapflights users on 11/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:15 amBNA - BNE
2 stops32h 30mAir Canada
Tue 12/910:45 amBNE - BNA
2 stops44h 20mAir Canada
Deal found 11/29$1,056
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/15:07 pmBNA - BNE
1 stop22h 23mUnited Airlines
Tue 12/911:40 amBNE - BNA
2 stops41h 48mUnited Airlines
Deal found 11/29$1,057
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/311:20 amCVG - BNE
2 stops29h 10mUnited Airlines
Fri 12/511:40 amBNE - CVG
2 stops22h 13mUnited Airlines
Deal found 11/29$1,193
This Cheapflightsfares deal was found by Cheapflights users on 11/30. 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.
Mon 12/14:54 pmCVG - SYD
1 stop22h 01mQantas Airways
Mon 12/82:05 pmSYD - CVG
1 stop21h 52mQantas Airways
Deal found 11/30$1,214
This Delta deal was found by Cheapflights users on 11/29. 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.
Wed 12/104:30 pmBNA - MEL
1 stop22h 30mDelta
Sun 12/1410:10 amMEL - BNA
1 stop25h 07mDelta
Deal found 11/29$1,217
This American Airlines deal was found by Cheapflights users on 11/28. 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 12/13:21 pmCVG - SYD
2 stops25h 39mAmerican Airlines
Sun 12/711:20 amSYD - CVG
2 stops25h 26mAmerican Airlines
Deal found 11/28$1,236
This American Airlines deal was found by Cheapflights users on 11/30. 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 12/13:35 pmCVG - SYD
2 stops25h 25mAmerican Airlines
Mon 12/82:05 pmSYD - CVG
1 stop21h 52mAmerican Airlines
Deal found 11/30$1,238

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 1, 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

Mon 2/23

3:11 pm-8:20 am

1 stop25h 09m

Brisbane

Fri 2/27

10:40 am-11:48 pm

1 stop29h 08m

$946

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Fri 3/20

6:30 pm-7:20 am

1 stop21h 50m

Brisbane

Wed 3/25

10:05 am-11:56 pm

1 stop28h 51m

$947

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Mon 3/16

3:02 pm-7:20 am

1 stop25h 18m

Brisbane

Wed 3/25

10:05 am-5:25 pm

1 stop22h 20m

$947

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Mon 3/16

1:50 pm-7:20 am

2 stops26h 30m

Brisbane

Fri 3/20

9:40 am-5:25 pm

1 stop22h 45m

$951

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Sun 2/1

3:29 pm-9:35 am

2 stops26h 06m

Sydney Kingsford Smith

Mon 2/9

11:20 am-6:00 pm

2 stops46h 40m

$962

CincinnatiBrisbane

CVG - BNE

CVGBNE

Cincinnati Cinci./N. Kentucky

Thu 2/5

6:40 pm-8:45 am

2 stops47h 05m

Brisbane

Tue 2/10

6:35 am-6:00 pm

3 stops50h 25m

$965

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Wed 1/14

11:33 am-5:00 am

1 stop24h 27m

Melbourne

Wed 1/21

4:05 pm-11:14 pm

1 stop24h 09m

$971

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Mon 2/9

6:36 am-5:00 am

1 stop29h 24m

Melbourne

Sat 3/14

4:05 pm-7:58 pm

1 stop19h 53m

$971

NashvilleSydney

BNA - SYD

BNASYD

Nashville Intl

Mon 3/2

4:55 pm-10:05 am

2 stops48h 10m

Sydney Kingsford Smith

Mon 3/16

11:20 am-4:51 pm

1 stop21h 31m

$972

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Tue 1/20

6:36 am-5:00 am

1 stop29h 24m

Melbourne

Wed 2/25

4:05 pm-10:40 pm

2 stops23h 35m

$975

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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 December 1, 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 $971, Delta can have you in Australia from Kentucky in 24h 27m. Kentucky and Australia are separated by a distance of 9618 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 Qantas Airways, which is currently one of the cheapest options available, starting at $529. American Airlines flights start at $544 while deals on Delta start at $552 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 December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$921Average$1,331FlexibilityNo cancel feeOn-time69%
DeltaCheapest$979Average$1,351FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,260Average$1,602FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,380Average$1,684FlexibilityNo cancel feeOn-time78%

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