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

Delta and United Airlines 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.

$913 Cheap Flights from Louisville to Australia in 2026

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.

08:00 - 07:00

SDF

SYD

33h 00m

3 stops

10:20 - 20:23

SYD

SDF

24h 03m

2 stops

$1,759United Airlines

Sat, 6 Jun - Sat, 13 Jun

15:25 - 07:00

SDF

SYD

25h 35m

2 stops

09:30 - 22:15

SYD

SDF

26h 45m

2 stops

$1,761United Airlines

Fri, 5 Jun - Fri, 12 Jun

15:41 - 08:15

SDF

MEL

26h 34m

2 stops

09:30 - 20:23

MEL

SDF

24h 53m

2 stops

$1,790United Airlines

Wed, 3 Jun - Fri, 3 Jul

16:35 - 06:50

SDF

SYD

24h 15m

1 stop

09:15 - 21:31

SYD

SDF

26h 16m

2 stops

$2,118Delta

Sun, 3 May - Wed, 6 May

09:31 - 11:50

SDF

SYD

36h 19m

2 stops

17:50 - 19:26

SYD

SDF

39h 36m

1 stop

$2,219Multiple Airlines

Fri, 5 Jun - Fri, 12 Jun

13:18 - 05:00

SDF

MEL

24h 42m

1 stop

08:00 - 17:39

MEL

SDF

25h 39m

2 stops

$2,698Qantas Airways

Sat, 17 Oct - Mon, 2 Nov

15:50 - 10:55

SDF

MEL

28h 05m

2 stops

12:10 - 00:05

MEL

SDF

27h 55m

3 stops

$2,705Multiple Airlines

Sat, 17 Oct - Mon, 2 Nov

17:50 - 16:05

SDF

AVV

31h 15m

2 stops

10:20 - 17:39

AVV

SDF

23h 19m

2 stops

$2,804Qantas Airways

Sat, 17 Oct - Mon, 2 Nov

11:06 - 05:00

SDF

MEL

27h 54m

1 stop

09:45 - 22:08

MEL

SDF

26h 23m

2 stops

$3,066American Airlines

Wed, 24 Jun - Wed, 8 Jul

15:52 - 13:35

SDF

PER

33h 43m

2 stops

23:55 - 19:00

PER

SDF

31h 05m

3 stops

$4,171American Airlines

Tue, 2 Jun - Tue, 9 Jun

Delta flights from Louisville to Australia

Our best Delta deals on Louisville to Australia flight tickets

Delta

3 May

SDF16:35Louisville Intl

24h 15m

1 stop

SYD06:50Sydney Kingsford Smith

6 May

SYD09:15Sydney Kingsford Smith

26h 16m

2 stops

SDF21:31Louisville Intl

$2,118

Delta

13 July

SDF06:49Louisville Intl

34h 01m

2 stops

SYD06:50Sydney Kingsford Smith

21 July

SYD09:15Sydney Kingsford Smith

25h 57m

2 stops

SDF21:12Louisville Intl

$2,311

Air Canada flights from Louisville to Australia

Our best Air Canada deals on Louisville to Australia flight tickets

Air Canada

16 Sept

SDF07:22Louisville Intl

33h 58m

3 stops

SYD07:20Sydney Kingsford Smith

20 Sept

SYD09:20Sydney Kingsford Smith

28h 45m

3 stops

SDF00:05Louisville Intl

$3,061

Air Canada

19 May

SDF10:06Louisville Intl

31h 14m

3 stops

SYD07:20Sydney Kingsford Smith

26 May

SYD09:20Sydney Kingsford Smith

38h 07m

3 stops

SDF09:27Louisville Intl

$3,076

Air Canada

19 May

SDF10:06Louisville Intl

31h 14m

3 stops

SYD07:20Sydney Kingsford Smith

26 May

SYD09:20Sydney Kingsford Smith

25h 03m

2 stops

SDF20:23Louisville Intl

$3,078

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 6/6

08:00-07:00

3 stops33h 00m

Sydney Kingsford Smith

Sat 13/6

10:20-20:23

2 stops24h 03m

$1,759

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 5/6

15:25-07:00

2 stops25h 35m

Sydney Kingsford Smith

Fri 12/6

09:30-22:15

2 stops26h 45m

$1,761

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Wed 3/6

15:41-08:15

2 stops26h 34m

Melbourne

Fri 3/7

09:30-20:23

2 stops24h 53m

$1,790

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 3/5

16:35-06:50

1 stop24h 15m

Sydney Kingsford Smith

Wed 6/5

09:15-21:31

2 stops26h 16m

$2,118

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 5/6

09:31-11:50

2 stops36h 19m

Sydney Kingsford Smith

Fri 12/6

17:50-19:26

1 stop39h 36m

$2,219

Fastest return journey

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sat 17/10

13:18-05:00

1 stop24h 42m

Melbourne

Mon 2/11

08:00-17:39

2 stops25h 39m

$2,698

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sat 17/10

15:50-10:55

2 stops28h 05m

Melbourne

Mon 2/11

12:10-00:05

3 stops27h 55m

$2,705

LouisvilleMelbourne

SDF - AVV

SDFAVV

Louisville Intl

Sat 17/10

17:50-16:05

2 stops31h 15m

Melbourne Avalon

Mon 2/11

10:20-17:39

2 stops23h 19m

$2,804

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Wed 24/6

11:06-05:00

1 stop27h 54m

Melbourne

Wed 8/7

09:45-22:08

2 stops26h 23m

$3,066

LouisvillePerth

SDF - PER

SDFPER

Louisville Intl

Tue 2/6

15:52-13:35

2 stops33h 43m

Perth

Tue 9/6

23:55-19:00

3 stops31h 05m

$4,171

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, August 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 $1,720. If you don’t want to visit Australia in August, then you should wait until October to fly from Louisville, when ticket prices are also cheap, with an average price of $1,817.

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	25h 19m
Direct flights	None

The fastest flight from Louisville to Australia takes 25h 19m

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.