What is the cheapest airline that flies from Louisville Intl to Australia?

United Airlines and Qantas Airways are the most popular carriers operating from Louisville Intl to Australia

When did momondo last update prices for flights from Louisville Intl Airport to Australia?

Prices for flights from Louisville Intl Airport to Australia are refreshed on a daily basis.

How old do you have to be to fly from Louisville Intl Airport to Australia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Australia.

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

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$926 Cheap Flights from Louisville to Australia in 2026

Find the cheapest flights from Louisville to Australia

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

17:26 - 06:55

SDF

SYD

21h 29m

1 stop

17:50 - 18:13

SYD

SDF

40h 23m

2 stops

$1,510Qantas Airways

Sun, 15 Nov - Mon, 23 Nov

14:14 - 06:55

SDF

SYD

24h 41m

1 stop

12:45 - 13:44

SYD

SDF

40h 59m

2 stops

$1,584Qantas Airways

Wed, 20 Jan - Sat, 6 Feb

14:14 - 06:55

SDF

SYD

24h 41m

1 stop

12:45 - 13:44

SYD

SDF

40h 59m

2 stops

$1,586Qantas Airways

Wed, 20 Jan - Sat, 6 Feb

07:05 - 07:00

SDF

SYD

31h 55m

1 stop

09:20 - 19:35

SYD

SDF

26h 15m

1 stop

$1,674United Airlines

Tue, 1 Dec - Tue, 8 Dec

15:50 - 07:00

SDF

SYD

23h 10m

1 stop

09:20 - 13:33

SYD

SDF

20h 13m

1 stop

$1,676United Airlines

Tue, 1 Dec - Tue, 8 Dec

15:20 - 09:20

SDF

SYD

26h 00m

2 stops

11:50 - 19:35

SYD

SDF

23h 45m

2 stops

$1,680United Airlines

Tue, 1 Dec - Tue, 8 Dec

15:20 - 09:20

SDF

SYD

26h 00m

2 stops

11:50 - 19:35

SYD

SDF

23h 45m

2 stops

$1,682United Airlines

Tue, 1 Dec - Tue, 8 Dec

15:20 - 10:30

SDF

MEL

51h 10m

2 stops

11:30 - 19:35

MEL

SDF

24h 05m

2 stops

$1,712United Airlines

Tue, 19 Jan - Tue, 2 Feb

08:00 - 07:30

SDF

MEL

33h 30m

3 stops

10:00 - 14:29

MEL

SDF

66h 29m

3 stops

$1,745United Airlines

Fri, 7 Aug - Tue, 11 Aug

08:00 - 07:30

SDF

MEL

33h 30m

3 stops

10:10 - 14:29

MEL

SDF

66h 19m

3 stops

$1,747United Airlines

Fri, 7 Aug - Tue, 11 Aug

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Qantas Airways flights from Louisville to Australia

Our best Qantas Airways deals on Louisville to Australia flight tickets

Qantas Airways

15 Nov

SDF17:26Louisville Intl

21h 29m

1 stop

SYD06:55Sydney Kingsford Smith

23 Nov

SYD17:50Sydney Kingsford Smith

40h 23m

2 stops

SDF18:13Louisville Intl

$1,510

Qantas Airways

20 Jan

SDF14:14Louisville Intl

24h 41m

1 stop

SYD06:55Sydney Kingsford Smith

6 Feb

SYD12:45Sydney Kingsford Smith

40h 59m

2 stops

SDF13:44Louisville Intl

$1,584

Qantas Airways

20 Jan

SDF14:14Louisville Intl

24h 41m

1 stop

SYD06:55Sydney Kingsford Smith

6 Feb

SYD12:45Sydney Kingsford Smith

40h 59m

2 stops

SDF13:44Louisville Intl

$1,586

United Airlines flights from Louisville to Australia

Our best United Airlines deals on Louisville to Australia flight tickets

United Airlines

1 Dec

SDF07:05Louisville Intl

31h 55m

1 stop

SYD07:00Sydney Kingsford Smith

8 Dec

SYD09:20Sydney Kingsford Smith

26h 15m

1 stop

SDF19:35Louisville Intl

$1,674

United Airlines

1 Dec

SDF15:50Louisville Intl

23h 10m

1 stop

SYD07:00Sydney Kingsford Smith

8 Dec

SYD09:20Sydney Kingsford Smith

20h 13m

1 stop

SDF13:33Louisville Intl

$1,676

United Airlines

1 Dec

SDF15:20Louisville Intl

26h 00m

2 stops

SYD09:20Sydney Kingsford Smith

8 Dec

SYD11:50Sydney Kingsford Smith

23h 45m

2 stops

SDF19:35Louisville Intl

$1,680

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 15/11

17:26-06:55

1 stop21h 29m

Sydney Kingsford Smith

Mon 23/11

17:50-18:13

2 stops40h 23m

$1,510

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 20/1

14:14-06:55

1 stop24h 41m

Sydney Kingsford Smith

Sat 6/2

12:45-13:44

2 stops40h 59m

$1,584

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 20/1

14:14-06:55

1 stop24h 41m

Sydney Kingsford Smith

Sat 6/2

12:45-13:44

2 stops40h 59m

$1,586

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 1/12

07:05-07:00

1 stop31h 55m

Sydney Kingsford Smith

Tue 8/12

09:20-19:35

1 stop26h 15m

$1,674

Fastest return journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 1/12

15:50-07:00

1 stop23h 10m

Sydney Kingsford Smith

Tue 8/12

09:20-13:33

1 stop20h 13m

$1,676

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 1/12

15:20-09:20

2 stops26h 00m

Sydney Kingsford Smith

Tue 8/12

11:50-19:35

2 stops23h 45m

$1,680

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 1/12

15:20-09:20

2 stops26h 00m

Sydney Kingsford Smith

Tue 8/12

11:50-19:35

2 stops23h 45m

$1,682

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Tue 19/1

15:20-10:30

2 stops51h 10m

Melbourne

Tue 2/2

11:30-19:35

2 stops24h 05m

$1,712

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 7/8

08:00-07:30

3 stops33h 30m

Melbourne

Tue 11/8

10:00-14:29

3 stops66h 29m

$1,744

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 7/8

08:00-07:30

3 stops33h 30m

Melbourne

Tue 11/8

10:10-14:29

3 stops66h 19m

$1,747

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville 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

What is the cheapest month to fly to Australia?

In general, January is the cheapest month to fly from Louisville to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,732. If you don’t want to visit Australia in January, then you should wait until August to fly from Louisville, when ticket prices are also cheap, with an average price of $1,763.

Can stopping save me money on Louisville to Australia flights?

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

Cheap Louisville to Australia flight deals and tips

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

Fastest flight time	21h 29m
Direct flights	None

The fastest flight from Louisville to Australia takes 21h 29m

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

Search flight deals

Frequently asked questions about flying from Louisville to Australia

When did momondo last update prices for flights from Louisville Intl Airport to Australia?
Prices for flights from Louisville Intl Airport to Australia are refreshed on a daily basis.
How old do you have to be to fly from Louisville Intl Airport to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Louisville to Australia. momondo saves you time and could save you money on your trip.

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

Flights from Louisville to Australia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Louisville and Australia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Louisville to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.