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$492+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
May 18 — May 251
Mon 5/18
Mon 5/25
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 18, 2026.

This Air Canada deal was found by Cheapflights users on 4/13. 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 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 stops25h 10m
Air Canada
Deal found 4/13$1,084
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:55 pm
CVG
-
SYD
2 stops27h 25m
Air Canada
Tue 5/269:20 am
SYD
-
CVG
2 stops41h 53m
Air Canada
Deal found 4/14$1,089
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 am
CVG
-
SYD
3 stops39h 50m
Multiple Airlines
Sun 5/101:15 pm
SYD
-
CVG
3 stops44h 20m
Multiple Airlines
Deal found 4/13$1,107
This BusinessClass deal was found by Cheapflights users on 4/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:00 am
CVG
-
SYD
1 stop32h 20m
Multiple Airlines
Sat 9/269:20 am
SYD
-
CVG
2 stops44h 33m
Multiple Airlines
Deal found 4/13$1,134
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:00 am
CVG
-
MEL
3 stops36h 20m
Multiple Airlines
Wed 5/208:50 pm
MEL
-
CVG
3 stops38h 33m
Multiple Airlines
Deal found 4/13$1,136
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:00 am
CVG
-
MEL
3 stops36h 20m
Multiple Airlines
Thu 5/216:00 am
MEL
-
CVG
3 stops45h 13m
Multiple Airlines
Deal found 4/14$1,139
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:55 pm
CVG
-
SYD
2 stops51h 25m
Air Canada
Sun 5/319:20 am
SYD
-
CVG
2 stops49h 10m
Air Canada
Deal found 4/14$1,159
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:55 pm
CVG
-
SYD
2 stops27h 25m
Air Canada
Sun 5/179:20 am
SYD
-
CVG
2 stops26h 03m
Air Canada
Deal found 4/14$1,164
This Justfly.com deal was found by Cheapflights users on 4/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:00 am
CVG
-
SYD
2 stops32h 20m
Air Canada
Sat 5/309:20 am
SYD
-
CVG
2 stops41h 53m
Air Canada
Deal found 4/14$1,179
This Priceline deal was found by Cheapflights users on 4/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/141:55 pm
CVG
-
SYD
2 stops27h 25m
Air Canada
Thu 5/219:20 am
SYD
-
CVG
2 stops26h 03m
Air Canada
Deal found 4/14$1,196
This BusinessClass deal was found by Cheapflights users on 4/14. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/141:55 pm
CVG
-
SYD
2 stops27h 25m
Multiple Airlines
Thu 5/219:20 am
SYD
-
CVG
1 stop44h 33m
Multiple Airlines
Deal found 4/14$1,204
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:00 am
CVG
-
MEL
3 stops36h 20m
Multiple Airlines
Fri 6/56:00 am
MEL
-
CVG
3 stops47h 53m
Multiple Airlines
Deal found 4/14$1,214

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 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,084
(Air Canada)

One-way from

$492
(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 18, 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

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 5/30

11:12 am-6:50 am

2 stops29h 38m

Sydney Kingsford Smith

Sat 6/6

9:15 am-9:55 am

2 stops38h 40m

$1,259

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Fri 5/22

11:15 am-7:30 am

2 stops29h 15m

Melbourne

Sat 5/30

10:55 am-8:34 pm

2 stops24h 39m

$1,282

CincinnatiMelbourne

CVG - MEL

CVGMEL

Cincinnati Cinci./N. Kentucky

Thu 5/14

11:40 am-8:15 am

2 stops30h 35m

Melbourne

Thu 5/21

10:55 am-10:28 pm

2 stops25h 33m

$1,282

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Fri 5/1

3:02 pm-7:50 am

1 stop25h 48m

Melbourne

Fri 5/8

10:00 am-5:31 pm

2 stops22h 31m

$1,288

NashvilleMelbourne

BNA - MEL

BNAMEL

Nashville Intl

Sun 5/24

4:59 pm-11:20 am

2 stops27h 21m

Melbourne

Mon 6/1

10:55 am-10:46 pm

1 stop26h 51m

$1,301

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Wed 5/13

1:59 pm-6:50 am

2 stops26h 51m

Sydney Kingsford Smith

Wed 5/20

9:15 am-11:56 pm

2 stops28h 41m

$1,307

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 5/31

5:40 am-6:50 am

2 stops35h 10m

Sydney Kingsford Smith

Sun 6/7

9:15 am-9:41 pm

2 stops26h 26m

$1,307

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 6/1

8:35 am-6:50 am

2 stops32h 15m

Sydney Kingsford Smith

Mon 6/8

9:15 am-9:41 pm

2 stops26h 26m

$1,308

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Sun 5/17

2:47 pm-6:55 am

1 stop26h 08m

Sydney Kingsford Smith

Sun 5/24

12:00 pm-7:09 pm

1 stop21h 09m

$1,326

CincinnatiSydney

CVG - SYD

CVGSYD

Cincinnati Cinci./N. Kentucky

Mon 6/1

2:07 pm-6:55 am

2 stops26h 48m

Sydney Kingsford Smith

Mon 6/15

9:10 am-7:09 pm

2 stops23h 59m

$1,329

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 59 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 $1,326, Delta can have you in Australia from Kentucky in 26h 08m. Kentucky and Australia are separated by a distance of 9357 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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$933Average$1,421FlexibilityNo cancel feeOn-time69%
DeltaCheapest$985Average$1,351FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,260Average$1,606FlexibilityNo cancel feeOn-time71%

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