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

United Airlines, Delta, 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.

$1,459 Cheap Flights from Louisville to Australia in 2025/26

1 adult

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Find the cheapest flights from Louisville to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:15 - 07:00SDF-SYD

29h 45m1 stop

11:50 - 21:57SYD-SDF

26h 07m1 stop

$1,931United Airlines

Find Deal

Sun, 30 Nov - Sun, 7 Dec

06:35 - 08:30SDF-SYD

33h 55m2 stops

10:40 - 22:58SYD-SDF

28h 18m2 stops

$1,938Delta

Find Deal

Sun, 30 Nov - Sun, 7 Dec

15:30 - 07:00SDF-SYD

23h 30m1 stop

11:50 - 19:51SYD-SDF

24h 01m1 stop

$2,007United Airlines

Find Deal

Mon, 16 Feb - Fri, 20 Feb

18:27 - 06:55SDF-SYD

21h 28m1 stop

12:10 - 17:24SYD-SDF

19h 14m1 stop

$3,163Qantas Airways

Find Deal

Thu, 19 Mar - Sun, 5 Apr

07:51 - 18:40SDF-PER

46h 49m2 stops

22:45 - 21:00PER-SDF

58h 15m2 stops

$3,208Qatar Airways

Find Deal

Sun, 19 Apr - Thu, 23 Apr

15:30 - 10:55SDF-MEL

27h 25m2 stops

08:35 - 22:13MEL-SDF

29h 38m3 stops

$3,285Multiple Airlines

Find Deal

Mon, 16 Feb - Fri, 20 Feb

12:56 - 18:40SDF-PER

41h 44m2 stops

22:45 - 20:55PER-SDF

34h 10m2 stops

$3,409Qatar Airways

Find Deal

Sun, 19 Apr - Thu, 23 Apr

18:34 - 05:00SDF-MEL

42h 26m1 stop

18:30 - 17:38MEL-SDF

39h 08m2 stops

$3,457Qantas Airways

Find Deal

Tue, 18 Nov - Tue, 2 Dec

09:43 - 00:05SDF-MEL

46h 22m2 stops

16:05 - 19:44MEL-SDF

19h 39m1 stop

$3,483Multiple Airlines

Find Deal

Fri, 14 Nov - Wed, 26 Nov

09:00 - 08:35SDF-SYD

32h 35m3 stops

09:20 - 21:57SYD-SDF

26h 37m2 stops

$4,064Air Canada

Find Deal

Thu, 19 Mar - Sun, 5 Apr

United Airlines flights from Louisville to Australia

Our best United Airlines deals on Louisville to Australia flight tickets

United Airlines

30 Nov

SDF09:15Louisville Intl

29h 45m

1 stop

SYD07:00Sydney Kingsford Smith

7 Dec

SYD11:50Sydney Kingsford Smith

26h 07m

1 stop

SDF21:57Louisville Intl

$1,931

Find similar

United Airlines

30 Nov

SDF15:35Louisville Intl

23h 25m

1 stop

SYD07:00Sydney Kingsford Smith

7 Dec

SYD11:50Sydney Kingsford Smith

24h 38m

2 stops

SDF20:28Louisville Intl

$1,938

Find similar

United Airlines

16 Feb

SDF15:30Louisville Intl

23h 30m

1 stop

SYD07:00Sydney Kingsford Smith

20 Feb

SYD11:50Sydney Kingsford Smith

24h 01m

1 stop

SDF19:51Louisville Intl

$2,007

Find similar

Qantas Airways flights from Louisville to Australia

Our best Qantas Airways deals on Louisville to Australia flight tickets

Qantas Airways

19 Mar

SDF18:27Louisville Intl

21h 28m

1 stop

SYD06:55Sydney Kingsford Smith

5 Apr

SYD12:10Sydney Kingsford Smith

19h 14m

1 stop

SDF17:24Louisville Intl

$3,163

Find similar

Qantas Airways

18 Nov

SDF18:34Louisville Intl

42h 26m

1 stop

MEL05:00Melbourne

2 Dec

MEL18:30Melbourne

39h 08m

2 stops

SDF17:38Louisville Intl

$3,457

Find similar

Qantas Airways

17 Nov

SDF13:42Louisville Intl

23h 18m

1 stop

MEL05:00Melbourne

24 Nov

MEL16:05Melbourne

21h 55m

1 stop

SDF22:00Louisville Intl

$3,716

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 30/11

09:15-07:00

1 stop29h 45m

Sydney Kingsford Smith

Sun 7/12

11:50-21:57

1 stop26h 07m

$1,931

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 30/11

06:35-08:30

2 stops33h 55m

Sydney Kingsford Smith

Sun 7/12

10:40-22:58

2 stops28h 18m

$1,938

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 16/2

15:30-07:00

1 stop23h 30m

Sydney Kingsford Smith

Fri 20/2

11:50-19:51

1 stop24h 01m

$2,007

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 19/3

18:27-06:55

1 stop21h 28m

Sydney Kingsford Smith

Sun 5/4

12:10-17:24

1 stop19h 14m

$3,163

LouisvillePerth

SDF - PER

SDFPER

Louisville Intl

Sun 19/4

07:51-18:40

2 stops46h 49m

Perth

Thu 23/4

22:45-21:00

2 stops58h 15m

$3,208

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Mon 16/2

15:30-10:55

2 stops27h 25m

Melbourne

Fri 20/2

08:35-22:13

3 stops29h 38m

$3,285

LouisvillePerth

SDF - PER

SDFPER

Louisville Intl

Sun 19/4

12:56-18:40

2 stops41h 44m

Perth

Thu 23/4

22:45-20:55

2 stops34h 10m

$3,409

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Tue 18/11

18:34-05:00

1 stop42h 26m

Melbourne

Tue 2/12

18:30-17:38

2 stops39h 08m

$3,457

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 14/11

09:43-00:05

2 stops46h 22m

Melbourne

Wed 26/11

16:05-19:44

1 stop19h 39m

$3,483

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 19/3

09:00-08:35

3 stops32h 35m

Sydney Kingsford Smith

Sun 5/4

09:20-21:57

2 stops26h 37m

$4,064

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, April 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 $1,695. If you don’t want to visit Australia in April, then you should wait until November to fly from Louisville, when ticket prices are also cheap, with an average price of $1,744.

Cheap Louisville to Australia flight deals and tips

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

Direct flights	None

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

Search flight deals

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.