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.

$957 Cheap Flights from Louisville to Australia in 2026

Find the cheapest flights from Louisville to Australia

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

15:25 - 06:50

SDF

SYD

25h 25m

2 stops

09:15 - 19:11

SYD

SDF

23h 56m

2 stops

$1,706Delta

Mon, 10 Aug - Wed, 19 Aug

14:36 - 06:45

SDF

MEL

26h 09m

2 stops

19:05 - 17:23

MEL

SDF

36h 18m

2 stops

$1,730Qantas Airways

Sat, 29 Aug - Sat, 5 Sep

08:00 - 08:15

SDF

MEL

34h 15m

2 stops

09:30 - 19:07

MEL

SDF

23h 37m

2 stops

$1,742United Airlines

Sun, 16 Aug - Sun, 23 Aug

08:00 - 08:15

SDF

MEL

34h 15m

2 stops

10:10 - 14:29

MEL

SDF

66h 19m

3 stops

$1,780United Airlines

Tue, 4 Aug - Mon, 31 Aug

10:25 - 10:30

SDF

MEL

32h 05m

2 stops

12:10 - 14:20

MEL

SDF

66h 10m

3 stops

$1,786United Airlines

Sun, 1 Nov - Sat, 14 Nov

07:55 - 09:50

SDF

MEL

33h 55m

2 stops

12:00 - 21:41

MEL

SDF

25h 41m

2 stops

$1,806Delta

Sun, 1 Nov - Sat, 14 Nov

16:25 - 06:55

SDF

SYD

24h 30m

1 stop

13:00 - 17:17

SYD

SDF

19h 17m

1 stop

$1,842Qantas Airways

Wed, 23 Sep - Sun, 11 Oct

16:26 - 06:55

SDF

SYD

22h 29m

1 stop

06:25 - 17:39

SYD

SDF

27h 14m

2 stops

$1,845Qantas Airways

Wed, 4 Nov - Wed, 11 Nov

16:26 - 06:55

SDF

SYD

22h 29m

1 stop

19:50 - 15:44

SYD

SDF

35h 54m

2 stops

$1,848Qantas Airways

Mon, 9 Nov - Mon, 23 Nov

09:00 - 07:00

SDF

SYD

32h 00m

2 stops

09:30 - 20:36

SYD

SDF

25h 06m

2 stops

$1,849United Airlines

Thu, 27 Aug - Thu, 3 Sep

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Qantas Airways flights from Louisville to Australia

Our best Qantas Airways deals on Louisville to Australia flight tickets

Qantas Airways

29 Aug

SDF14:36Louisville Intl

26h 09m

2 stops

MEL06:45Melbourne

5 Sept

MEL19:05Melbourne

36h 18m

2 stops

SDF17:23Louisville Intl

$1,730

Qantas Airways

23 Sept

SDF16:25Louisville Intl

24h 30m

1 stop

SYD06:55Sydney Kingsford Smith

11 Oct

SYD13:00Sydney Kingsford Smith

19h 17m

1 stop

SDF17:17Louisville Intl

$1,842

Qantas Airways

4 Nov

SDF16:26Louisville Intl

22h 29m

1 stop

SYD06:55Sydney Kingsford Smith

11 Nov

SYD06:25Sydney Kingsford Smith

27h 14m

2 stops

SDF17:39Louisville Intl

$1,845

United Airlines flights from Louisville to Australia

Our best United Airlines deals on Louisville to Australia flight tickets

United Airlines

16 Aug

SDF08:00Louisville Intl

34h 15m

2 stops

MEL08:15Melbourne

23 Aug

MEL09:30Melbourne

23h 37m

2 stops

SDF19:07Louisville Intl

$1,742

United Airlines

4 Aug

SDF08:00Louisville Intl

34h 15m

2 stops

MEL08:15Melbourne

31 Aug

MEL10:10Melbourne

66h 19m

3 stops

SDF14:29Louisville Intl

$1,780

United Airlines

1 Nov

SDF10:25Louisville Intl

32h 05m

2 stops

MEL10:30Melbourne

14 Nov

MEL12:10Melbourne

66h 10m

3 stops

SDF14:20Louisville Intl

$1,786

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 10/8

15:25-06:50

2 stops25h 25m

Sydney Kingsford Smith

Wed 19/8

09:15-19:11

2 stops23h 56m

$1,706

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sat 29/8

14:36-06:45

2 stops26h 09m

Melbourne

Sat 5/9

19:05-17:23

2 stops36h 18m

$1,730

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sun 16/8

08:00-08:15

2 stops34h 15m

Melbourne

Sun 23/8

09:30-19:07

2 stops23h 37m

$1,742

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Tue 4/8

08:00-08:15

2 stops34h 15m

Melbourne

Mon 31/8

10:10-14:29

3 stops66h 19m

$1,780

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sun 1/11

10:25-10:30

2 stops32h 05m

Melbourne

Sat 14/11

12:10-14:20

3 stops66h 10m

$1,786

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sun 1/11

07:55-09:50

2 stops33h 55m

Melbourne

Sat 14/11

12:00-21:41

2 stops25h 41m

$1,806

Fastest return journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 23/9

16:25-06:55

1 stop24h 30m

Sydney Kingsford Smith

Sun 11/10

13:00-17:17

1 stop19h 17m

$1,842

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 4/11

16:26-06:55

1 stop22h 29m

Sydney Kingsford Smith

Wed 11/11

06:25-17:39

2 stops27h 14m

$1,845

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 9/11

16:26-06:55

1 stop22h 29m

Sydney Kingsford Smith

Mon 23/11

19:50-15:44

2 stops35h 54m

$1,848

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 27/8

09:00-07:00

2 stops32h 00m

Sydney Kingsford Smith

Thu 3/9

09:30-20:36

2 stops25h 06m

$1,849

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 $1,733. 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 $1,765.

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 52m
Direct flights	None

The fastest flight from Louisville to Australia takes 21h 52m

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.