What is the cheapest airline that flies from Kentucky to Australia?

United Airlines is the most popular carrier operating from Kentucky to Australia

How long is the flight from Kentucky to Australia?

The flight from Kentucky to Australia depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Louisville (a popular airport in Kentucky) to Sydney (the most popular airport in Australia), then the flight time is 22h 45m on average. If you fly from Lexington (another popular airport in Kentucky) to Sydney, then the average flight time is 23h 01m.

When did momondo last update prices for flights from Kentucky to Australia?

Prices for flights from Kentucky to Australia are updated daily.

How many operators does momondo search for flights from Kentucky to Australia?

As of October 2026, there is 1 operator available to choose from for flights from Kentucky to Australia.

How old do you have to be to fly from Kentucky to Australia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$986 Cheap Flights from Kentucky to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Kentucky to Australia

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:10 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

29h 50m1 stop Houston George Bush Intcntl

09:15 - 20:33SYD Sydney Kingsford Smith-SDF Louisville Intl

27h 18m1 stop Houston George Bush Intcntl

$1,707United Airlines

Tue, 3 Nov - Tue, 24 Nov

10:37 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

28h 23m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

11:20 - 18:32SYD Sydney Kingsford Smith-SDF Louisville Intl

23h 12m2 stops Los Angeles Chicago O'Hare Intl

$1,712United Airlines

Tue, 3 Nov - Tue, 10 Nov

13:59 - 08:30SDF Louisville Intl-SYD Sydney Kingsford Smith

26h 31m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 - 18:11SYD Sydney Kingsford Smith-SDF Louisville Intl

23h 31m2 stops Los Angeles Minneapolis St Paul

$1,714Delta

Sun, 1 Nov - Wed, 25 Nov

12:40 - 08:30SDF Louisville Intl-SYD Sydney Kingsford Smith

52h 50m2 stops Minneapolis St Paul Los Angeles

10:40 - 18:11SYD Sydney Kingsford Smith-SDF Louisville Intl

23h 31m2 stops Los Angeles Minneapolis St Paul

$1,737Delta

Sat, 31 Oct - Wed, 25 Nov

12:40 - 08:30SDF Louisville Intl-SYD Sydney Kingsford Smith

52h 50m2 stops Minneapolis St Paul Los Angeles

10:40 - 18:11SYD Sydney Kingsford Smith-SDF Louisville Intl

47h 31m2 stops Los Angeles Minneapolis St Paul

$1,745Delta

Sat, 31 Oct - Tue, 24 Nov

11:55 - 06:25LEX Lexington Blue Grass-SYD Sydney Kingsford Smith

26h 30m2 stops Chicago O'Hare Intl Los Angeles

06:05 - 17:37SYD Sydney Kingsford Smith-LEX Lexington Blue Grass

27h 32m2 stops Brisbane Dallas/Fort Worth

$1,767Multiple Airlines

Thu, 28 Jan - Sat, 13 Feb

15:45 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

23h 15m1 stop Houston George Bush Intcntl

09:15 - 13:23SYD Sydney Kingsford Smith-SDF Louisville Intl

20h 08m1 stop Houston George Bush Intcntl

$1,778United Airlines

Sun, 1 Nov - Sun, 22 Nov

06:00 - 06:50SDF Louisville Intl-SYD Sydney Kingsford Smith

32h 50m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 - 19:01SYD Sydney Kingsford Smith-SDF Louisville Intl

24h 21m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,785Delta

Tue, 26 Jan - Sun, 28 Feb

12:07 - 06:55LEX Lexington Blue Grass-SYD Sydney Kingsford Smith

26h 48m1 stop Dallas/Fort Worth

14:05 - 22:43SYD Sydney Kingsford Smith-LEX Lexington Blue Grass

24h 38m1 stop Dallas/Fort Worth

$2,624American Airlines

Thu, 3 Dec - Thu, 10 Dec

13:36 - 06:55LEX Lexington Blue Grass-SYD Sydney Kingsford Smith

25h 19m1 stop Dallas/Fort Worth

14:05 - 23:35SYD Sydney Kingsford Smith-LEX Lexington Blue Grass

25h 30m1 stop Dallas/Fort Worth

$3,624American Airlines

Sat, 19 Dec - Fri, 1 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

15:45 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

24h 15m1 stop Houston George Bush Intcntl

09:15 - 20:33SYD Sydney Kingsford Smith-SDF Louisville Intl

27h 18m1 stop Houston George Bush Intcntl

$1,707United Airlines

Sun, 25 Oct - Mon, 9 Nov

07:05 - 07:20SDF Louisville Intl-SYD Sydney Kingsford Smith

33h 15m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 - 21:42SYD Sydney Kingsford Smith-SDF Louisville Intl

27h 02m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,714Delta

Sun, 25 Oct - Tue, 10 Nov

18:39 - 07:20SDF Louisville Intl-SYD Sydney Kingsford Smith

45h 41m2 stops Minneapolis St Paul Los Angeles

10:40 - 19:14SYD Sydney Kingsford Smith-SDF Louisville Intl

24h 34m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,737Delta

Sat, 24 Oct - Tue, 10 Nov

15:45 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

24h 15m1 stop Houston George Bush Intcntl

09:10 - 13:23SYD Sydney Kingsford Smith-SDF Louisville Intl

20h 13m1 stop Houston George Bush Intcntl

$1,778United Airlines

Sun, 25 Oct - Thu, 12 Nov

15:37 - 07:55SDF Louisville Intl-SYD Sydney Kingsford Smith

25h 18m2 stops Houston George Bush Intcntl San Francisco

11:50 - 18:32SYD Sydney Kingsford Smith-SDF Louisville Intl

22h 42m2 stops San Francisco Chicago O'Hare Intl

$1,785United Airlines

Fri, 23 Oct - Mon, 9 Nov

18:39 - 07:20SDF Louisville Intl-SYD Sydney Kingsford Smith

45h 41m2 stops Minneapolis St Paul Los Angeles

10:40 - 18:20SYD Sydney Kingsford Smith-SDF Louisville Intl

23h 40m2 stops Los Angeles Minneapolis St Paul

$1,808Delta

Sat, 24 Oct - Sat, 14 Nov

09:40 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

30h 20m1 stop Houston George Bush Intcntl

09:10 - 20:33SYD Sydney Kingsford Smith-SDF Louisville Intl

27h 23m1 stop Houston George Bush Intcntl

$1,849United Airlines

Sat, 24 Oct - Thu, 12 Nov

12:40 - 07:50SDF Louisville Intl-SYD Sydney Kingsford Smith

28h 10m2 stops Minneapolis St Paul Los Angeles

10:40 - 18:20SYD Sydney Kingsford Smith-SDF Louisville Intl

23h 40m2 stops Los Angeles Minneapolis St Paul

$1,856Delta

Thu, 22 Oct - Sat, 14 Nov

10:10 - 07:50LEX Lexington Blue Grass-SYD Sydney Kingsford Smith

30h 40m2 stops Atlanta Hartsfield-Jackson Los Angeles

09:40 - 23:59SYD Sydney Kingsford Smith-LEX Lexington Blue Grass

29h 19m2 stops Los Angeles Atlanta Hartsfield-Jackson

$2,051Delta

Fri, 23 Oct - Fri, 30 Oct

12:20 - 06:55LEX Lexington Blue Grass-SYD Sydney Kingsford Smith

27h 35m1 stop Dallas/Fort Worth

13:05 - 22:17SYD Sydney Kingsford Smith-LEX Lexington Blue Grass

24h 12m1 stop Dallas/Fort Worth

$2,467American Airlines

Fri, 23 Oct - Fri, 30 Oct

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Qantas Airways flights from Kentucky to Australia

Our best Qantas Airways deals on Kentucky to Australia flight tickets

Qantas Airways

19 Feb

LEX13:24Lexington Blue Grass

25h 31m

1 stop

SYD06:55Sydney Kingsford Smith

3 Mar

SYD11:05Sydney Kingsford Smith

46h 32m

2 stops

LEX17:37Lexington Blue Grass

$1,792

Qantas Airways

27 Feb

SDF18:27Louisville Intl

29h 43m

2 stops

SYD16:10Sydney Kingsford Smith

8 Mar

SYD14:05Sydney Kingsford Smith

19h 33m

1 stop

SDF17:38Louisville Intl

$1,805

Qantas Airways

28 Jan

LEX12:36Lexington Blue Grass

38h 49m

2 stops

SYD19:25Sydney Kingsford Smith

13 Feb

SYD14:05Sydney Kingsford Smith

19h 32m

1 stop

LEX17:37Lexington Blue Grass

$1,842

Air New Zealand flights from Kentucky to Australia

Our best Air New Zealand deals on Kentucky to Australia flight tickets

Air New Zealand

1 Mar

SDF15:50Louisville Intl

38h 00m

2 stops

SYD21:50Sydney Kingsford Smith

8 Mar

SYD11:50Sydney Kingsford Smith

26h 09m

2 stops

SDF21:59Louisville Intl

$1,846

Air New Zealand

1 Mar

SDF07:05Louisville Intl

33h 30m

2 stops

SYD08:35Sydney Kingsford Smith

15 Mar

SYD09:55Sydney Kingsford Smith

27h 04m

2 stops

SDF21:59Louisville Intl

$1,908

Air New Zealand

28 Feb

SDF07:05Louisville Intl

43h 10m

2 stops

SYD18:15Sydney Kingsford Smith

9 Mar

SYD11:50Sydney Kingsford Smith

25h 06m

2 stops

SDF20:56Louisville Intl

$1,913

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 3/11

09:10-07:00

1 stop29h 50m

Sydney Kingsford Smith

Tue 24/11

09:15-20:33

1 stop27h 18m

$1,707

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 3/11

10:37-07:00

2 stops28h 23m

Sydney Kingsford Smith

Tue 10/11

11:20-18:32

2 stops23h 12m

$1,712

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 1/11

13:59-08:30

2 stops26h 31m

Sydney Kingsford Smith

Wed 25/11

10:40-18:11

2 stops23h 31m

$1,714

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sat 31/10

12:40-08:30

2 stops52h 50m

Sydney Kingsford Smith

Wed 25/11

10:40-18:11

2 stops23h 31m

$1,737

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sat 31/10

12:40-08:30

2 stops52h 50m

Sydney Kingsford Smith

Tue 24/11

10:40-18:11

2 stops47h 31m

$1,745

LexingtonSydney

LEX Lexington Blue Grass - SYD Sydney Kingsford Smith

LEXSYD

Lexington Blue Grass

Thu 28/1

11:55-06:25

2 stops26h 30m

Sydney Kingsford Smith

Sat 13/2

06:05-17:37

2 stops27h 32m

$1,767

Fastest return journey

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 1/11

15:45-07:00

1 stop23h 15m

Sydney Kingsford Smith

Sun 22/11

09:15-13:23

1 stop20h 08m

$1,778

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 26/1

06:00-06:50

2 stops32h 50m

Sydney Kingsford Smith

Sun 28/2

10:40-19:01

2 stops24h 21m

$1,785

LexingtonSydney

LEX Lexington Blue Grass - SYD Sydney Kingsford Smith

LEXSYD

Lexington Blue Grass

Thu 3/12

12:07-06:55

1 stop26h 48m

Sydney Kingsford Smith

Thu 10/12

14:05-22:43

1 stop24h 38m

$2,624

LexingtonSydney

LEX Lexington Blue Grass - SYD Sydney Kingsford Smith

LEXSYD

Lexington Blue Grass

Sat 19/12

13:36-06:55

1 stop25h 19m

Sydney Kingsford Smith

Fri 1/1

14:05-23:35

1 stop25h 30m

$3,624

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kentucky to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Australia?

In general, November is the cheapest month to fly from Kentucky to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,365. If you don’t want to visit Australia in November, then you should wait until June to fly from Kentucky, when ticket prices are also cheap, with an average price of $1,794.

Can stopping save me money on Kentucky to Australia flights?

You could potentially save up to 23% on your flight if you consider stops on a Kentucky to Australia flight.

Cheap Kentucky to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kentucky to Australia

Best price found	$986
Fastest flight time	21h 38m
Direct flights	None

The best one-way flight to Australia from Kentucky in the past 72 hours is $986. The best return flight deal from Kentucky to Australia found on momondo in the last 72 hours is $1,707.

The fastest flight from Kentucky to Australia takes 21h 38m

There are no direct flights from Kentucky to Australia. There are no popular flight routes from Kentucky to Australia.

Search flight deals

Frequently asked questions about flying from Kentucky to Australia

When did momondo last update prices for flights from Kentucky to Australia?
Prices for flights from Kentucky to Australia are updated daily.
How many operators does momondo search for flights from Kentucky to Australia?
As of October 2026, there is 1 operator available to choose from for flights from Kentucky to Australia.
How old do you have to be to fly from Kentucky to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Kentucky to Australia

Compare and see reviews for airlines that fly from Kentucky to Australia with momondo

Airline	Rating	Free cancellation	Price
American Airlines	PriceFrom $1,580	Free cancellation	Rating 7.0 12,179 reviews		Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Kentucky to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Kentucky to Australia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Kentucky to Australia with flexible booking policies on momondo?

Yes. All flights to Australia from Kentucky on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Kentucky to Australia?

Once you have performed a search for Kentucky to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Kentucky to Australia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Kentucky to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.