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$570+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
May 24 — May 311
Sun 5/24
Sun 5/31
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 April 24, 2026.

This FlightHub deal was found by Cheapflights users on 4/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:15 am
CVG
-
MEL
3 stops39h 20m
Air Canada
Sat 6/66:00 pm
MEL
-
CVG
3 stops59h 53m
Air Canada
Deal found 4/21$1,227
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 4/243:26 pm
CVG
-
SYD
2 stops25h 34m
United Airlines
Thu 5/79:30 am
SYD
-
CVG
2 stops28h 14m
United Airlines
Deal found 4/23$1,244
This Air Canada deal was found by Cheapflights users on 4/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/201:55 pm
CVG
-
SYD
2 stops51h 25m
Air Canada
Wed 5/279:20 am
SYD
-
CVG
2 stops25h 10m
Air Canada
Deal found 4/20$1,247
This Air Canada deal was found by Cheapflights users on 4/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:55 pm
CVG
-
SYD
2 stops27h 25m
Air Canada
Wed 5/139:20 am
SYD
-
CVG
2 stops41h 53m
Air Canada
Deal found 4/21$1,250
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 4/233:36 pm
SDF
-
SYD
2 stops25h 24m
United Airlines
Thu 4/309:30 am
SYD
-
SDF
1 stop20h 02m
United Airlines
Deal found 4/22$1,256
This Air Canada deal was found by Cheapflights users on 4/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:05 pm
CVG
-
SYD
2 stops48h 15m
Air Canada
Thu 5/149:20 am
SYD
-
CVG
2 stops41h 53m
Air Canada
Deal found 4/19$1,257
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 6/68:00 am
SDF
-
SYD
3 stops33h 00m
United Airlines
Sat 6/1310:20 am
SYD
-
SDF
2 stops24h 03m
United Airlines
Deal found 4/22$1,260
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/14:03 pm
CVG
-
SYD
2 stops24h 52m
United Airlines
Fri 5/89:30 am
SYD
-
CVG
2 stops25h 00m
United Airlines
Deal found 4/24$1,260
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Fri 6/53:25 pm
SDF
-
SYD
2 stops25h 35m
United Airlines
Fri 6/129:30 am
SYD
-
SDF
2 stops26h 45m
United Airlines
Deal found 4/20$1,261
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/221:55 pm
LEX
-
SYD
2 stops27h 05m
United Airlines
Fri 5/2910:20 am
SYD
-
LEX
2 stops27h 39m
United Airlines
Deal found 4/21$1,261
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Thu 4/3011:24 am
CVG
-
SYD
3 stops29h 36m
United Airlines
Thu 5/1410:20 am
SYD
-
CVG
2 stops35h 59m
United Airlines
Deal found 4/19$1,261
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 4/243:26 pm
CVG
-
MEL
2 stops26h 04m
United Airlines
Fri 5/89:30 am
MEL
-
CVG
2 stops25h 00m
United Airlines
Deal found 4/23$1,266

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 April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,227
(FlightHub)

One-way from

$570
(Air Canada)

Popular in

March

Cheapest in

August

Average price

$1,584
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. 11% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 24, 2026.
Use the filters below to find and compare flights from Kentucky to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Sun 6/28

1:55 pm-7:20 am

3 stops51h 25m

Sydney Kingsford Smith

Sun 7/5

9:20 am-8:30 pm

2 stops49h 10m

$1,256

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Thu 5/21

2:06 pm-7:00 am

2 stops26h 54m

Sydney Kingsford Smith

Thu 5/28

9:30 am-7:13 pm

2 stops23h 43m

$1,260

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Tue 5/5

1:55 pm-7:20 am

3 stops51h 25m

Sydney Kingsford Smith

Wed 5/13

9:20 am-1:13 pm

2 stops41h 53m

$1,260

LexingtonSydney

LEX - SYD

LEXSYD

Lexington Blue Grass

Fri 5/22

1:55 pm-7:00 am

2 stops27h 05m

Sydney Kingsford Smith

Fri 5/29

10:20 am-11:59 pm

2 stops27h 39m

$1,261

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Thu 4/30

11:24 am-7:00 am

3 stops29h 36m

Sydney Kingsford Smith

Thu 5/14

10:20 am-8:19 am

2 stops35h 59m

$1,261

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Fri 5/1

6:35 pm-8:15 am

1 stop22h 40m

Melbourne

Fri 5/8

10:55 am-10:44 pm

1 stop26h 49m

$1,278

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Fri 5/22

2:54 pm-8:15 am

1 stop26h 21m

Melbourne

Sun 5/31

10:55 am-10:46 pm

1 stop26h 51m

$1,278

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Wed 6/3

2:54 pm-8:15 am

1 stop26h 21m

Melbourne

Wed 6/10

9:30 am-9:39 pm

2 stops27h 09m

$1,282

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Sat 6/6

2:54 pm-8:15 am

1 stop26h 21m

Melbourne

Sat 6/13

10:55 am-9:29 am

2 stops37h 34m

$1,282

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Wed 6/3

6:50 pm-7:50 am

1 stop22h 00m

Melbourne

Wed 6/10

10:00 am-12:32 am

1 stop29h 32m

$1,285

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 60 resultsSorted by cheapest first
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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, May is the cheapest month in which you can book a flight from Kentucky to Australia (average of $527). Flying from Kentucky to Australia in April is currently the most expensive (average of $1,351). 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.

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 $1,325, Air Canada can have you in Australia from Kentucky in 25h 19m. 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, May is the cheapest month in which you can book a flight from Kentucky to Australia (average of $527). Flying from Kentucky to Australia in April is currently the most expensive (average of $1,351). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Kentucky to Australia

Discover the top 3 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 April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$662Average$1,351FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$933Average$1,415FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,260Average$1,606FlexibilityNo cancel feeOn-time71%

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