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$521+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 15, 2025.

This oojo deal was found by Cheapflights users on 12/13. 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 12/13$973
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:10 amBNA - MEL
1 stop31h 50mUnited Airlines
Mon 12/291:00 pmMEL - BNA
1 stop20h 07mUnited Airlines
Deal found 12/14$996
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:15 amBNA - MEL
2 stops34h 15mUnited Airlines
Mon 1/191:00 pmMEL - BNA
1 stop21h 27mUnited Airlines
Deal found 12/14$1,001
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:50 amBNA - MEL
1 stop32h 10mDelta
Wed 5/2710:00 amMEL - BNA
1 stop28h 44mDelta
Deal found 12/14$1,003
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:07 pmBNA - MEL
1 stop23h 53mUnited Airlines
Sat 12/271:00 pmMEL - BNA
1 stop34h 26mUnited Airlines
Deal found 12/14$1,006
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:57 amBNA - MEL
2 stops28h 03mDelta
Wed 5/1310:00 amMEL - BNA
2 stops26h 03mDelta
Deal found 12/14$1,008
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:50 amBNA - MEL
2 stops29h 40mUnited Airlines
Sat 12/271:00 pmMEL - BNA
1 stop34h 26mUnited Airlines
Deal found 12/14$1,010
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/158:00 amBNA - MEL
2 stops33h 00mUnited Airlines
Tue 3/2412:00 pmMEL - BNA
1 stop20h 13mUnited Airlines
Deal found 12/14$1,241
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:19 amBNA - MEL
2 stops29h 11mUnited Airlines
Sat 12/271:00 pmMEL - BNA
1 stop34h 26mUnited Airlines
Deal found 12/14$1,250
This Delta deal was found by Cheapflights users on 12/13. 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.
Sat 12/278:30 amSDF - SYD
2 stops32h 00mDelta
Tue 12/302:15 pmSYD - SDF
2 stops24h 43mDelta
Deal found 12/13$1,276
This United Airlines deal was found by Cheapflights users on 12/13. 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 12/285:00 pmCVG - SYD
1 stop22h 00mUnited Airlines
Sun 1/1112:10 pmSYD - CVG
2 stops42h 12mUnited Airlines
Deal found 12/13$1,285
This United Airlines deal was found by Cheapflights users on 12/12. 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 12/179:00 amCVG - MEL
2 stops32h 30mUnited Airlines
Wed 12/2411:30 amMEL - CVG
2 stops23h 30mUnited Airlines
Deal found 12/12$1,291

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 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$938
(American Airlines)

One-way from

$521
(Air Canada)

Popular in

December

Cheapest in

November

Average price

$1,772
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.
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From Kentucky to Australia
Search Deals
One-way flight from Kentucky to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($39 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 15, 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

Sat 2/21

10:56 am-6:30 am

1 stop27h 34m

Brisbane

Tue 3/3

9:40 am-12:31 pm

1 stop18h 51m

$940

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Wed 1/28

1:25 pm-6:30 am

1 stop25h 05m

Brisbane

Wed 2/4

9:40 am-5:39 pm

2 stops23h 59m

$945

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Sun 2/22

1:44 pm-6:30 am

2 stops24h 46m

Brisbane

Thu 3/5

9:40 am-4:17 pm

2 stops22h 37m

$945

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Sat 2/21

2:25 pm-8:45 am

2 stops50h 20m

Brisbane

Tue 3/3

10:45 am-3:05 pm

2 stops44h 20m

$946

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Wed 1/28

4:55 pm-8:20 am

2 stops23h 25m

Brisbane

Wed 2/4

11:05 am-7:24 pm

2 stops24h 19m

$953

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Sun 2/22

8:15 am-2:20 pm

3 stops38h 05m

Brisbane

Thu 3/5

10:45 am-3:05 pm

2 stops44h 20m

$966

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

$974

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Wed 1/28

10:43 am-8:45 am

3 stops30h 02m

Brisbane

Wed 2/4

6:10 am-7:50 pm

3 stops29h 40m

$977

NashvilleBrisbane

BNA - BNE

BNABNE

Nashville Intl

Sat 2/21

6:04 pm-5:10 pm

2 stops31h 06m

Brisbane

Wed 3/4

7:40 pm-4:47 pm

1 stop37h 07m

$991

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Sun 2/1

6:35 pm-10:00 am

1 stop22h 25m

Melbourne

Sun 2/15

1:00 pm-10:59 pm

1 stop26h 59m

$996

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

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 15, 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 $940, American Airlines can have you in Australia from Kentucky in 27h 34m. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$921Average$1,365FlexibilityNo 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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