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.

$955 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.

10:43 - 08:00SDF Louisville Intl-MEL Melbourne

29h 17m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:10 - 21:41MEL Melbourne-SDF Louisville Intl

27h 31m2 stops Los Angeles Detroit Metropolitan Wayne County

$1,789Delta

Tue, 19 Jan - Tue, 2 Feb

15:35 - 07:30SDF Louisville Intl-MEL Melbourne

25h 55m2 stops Houston George Bush Intcntl Los Angeles

10:55 - 23:59MEL Melbourne-SDF Louisville Intl

27h 04m2 stops San Francisco Chicago O'Hare Intl

$1,795United Airlines

Mon, 7 Sep - Mon, 28 Sep

16:29 - 07:50SDF Louisville Intl-MEL Melbourne

49h 21m2 stops Minneapolis St Paul Los Angeles

10:00 - 21:30MEL Melbourne-SDF Louisville Intl

25h 30m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,812Delta

Tue, 8 Sep - Wed, 30 Sep

18:32 - 20:50SDF Louisville Intl-SYD Sydney Kingsford Smith

34h 18m2 stops Dallas/Fort Worth Auckland Intl

14:05 - 17:35SYD Sydney Kingsford Smith-SDF Louisville Intl

19h 30m1 stop Dallas/Fort Worth

$1,815Qantas Airways

Wed, 27 Jan - Sat, 13 Feb

15:25 - 08:15SDF Louisville Intl-MEL Melbourne

50h 50m2 stops Denver Intl San Francisco

10:55 - 23:59MEL Melbourne-SDF Louisville Intl

27h 04m2 stops San Francisco Chicago O'Hare Intl

$1,817United Airlines

Sun, 6 Sep - Wed, 30 Sep

15:50 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

23h 10m1 stop Houston George Bush Intcntl

09:20 - 13:33SYD Sydney Kingsford Smith-SDF Louisville Intl

20h 13m1 stop Houston George Bush Intcntl

$1,853United Airlines

Tue, 1 Dec - Tue, 8 Dec

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

23h 15m1 stop Houston George Bush Intcntl

09:20 - 13:33SYD Sydney Kingsford Smith-SDF Louisville Intl

20h 13m1 stop Houston George Bush Intcntl

$1,853United Airlines

Sun, 29 Nov - Mon, 7 Dec

15:50 - 09:20SDF Louisville Intl-SYD Sydney Kingsford Smith

25h 30m2 stops Houston George Bush Intcntl San Francisco

13:20 - 22:09SYD Sydney Kingsford Smith-SDF Louisville Intl

24h 49m2 stops San Francisco Chicago O'Hare Intl

$1,859United Airlines

Tue, 1 Dec - Tue, 8 Dec

12:33 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

28h 27m2 stops Chicago O'Hare Intl Los Angeles

09:30 - 22:29SYD Sydney Kingsford Smith-SDF Louisville Intl

26h 59m2 stops Los Angeles Denver Intl

$1,859United Airlines

Sun, 6 Sep - Mon, 14 Sep

10:25 - 06:55SDF Louisville Intl-SYD Sydney Kingsford Smith

30h 30m2 stops Chicago O'Hare Intl San Francisco

11:20 - 19:55SYD Sydney Kingsford Smith-SDF Louisville Intl

23h 35m2 stops San Francisco Houston George Bush Intcntl

$1,859United Airlines

Tue, 29 Sep - Tue, 6 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

08:00 - 07:00SDF Louisville Intl-SYD Sydney Kingsford Smith

33h 00m2 stops Denver Intl Los Angeles

19:00 - 14:29SYD Sydney Kingsford Smith-SDF Louisville Intl

57h 29m3 stops Melbourne San Francisco Denver Intl

$2,516United Airlines

Thu, 13 Aug - Sat, 15 Aug

09:45 - 08:45SDF Louisville Intl-SYD Sydney Kingsford Smith

33h 00m2 stops Houston George Bush Intcntl Auckland Intl

11:55 - 22:15SYD Sydney Kingsford Smith-SDF Louisville Intl

24h 20m2 stops Auckland Intl Houston George Bush Intcntl

$2,667Air New Zealand

Thu, 13 Aug - Sat, 15 Aug

06:28 - 06:50SDF Louisville Intl-PER Perth

36h 22m2 stops Chicago O'Hare Intl Hong Kong Intl

00:10 - 10:39PER Perth-SDF Louisville Intl

46h 29m2 stops Hong Kong Intl Dallas/Fort Worth

$2,694Cathay Pacific

Sat, 15 Aug - Fri, 21 Aug

19:00 - 17:00SDF Louisville Intl-PER Perth

34h 00m2 stops Dallas/Fort Worth Sydney Kingsford Smith

14:35 - 22:18PER Perth-SDF Louisville Intl

43h 43m3 stops Sydney Kingsford Smith Los Angeles Charlotte Douglas

$3,921Qantas Airways

Sat, 15 Aug - Sat, 22 Aug

07:03 - 06:55SDF Louisville Intl-SYD Sydney Kingsford Smith

33h 52m1 stop Dallas/Fort Worth

20:15 - 12:49SYD Sydney Kingsford Smith-SDF Louisville Intl

30h 34m2 stops Honolulu Dallas/Fort Worth

$4,322Qantas Airways

Thu, 13 Aug - Sat, 15 Aug

15:25 - 17:00SDF Louisville Intl-PER Perth

37h 35m3 stops Denver Intl Vancouver Intl Sydney Kingsford Smith

17:15 - 20:36PER Perth-SDF Louisville Intl

39h 21m3 stops Brisbane Vancouver Intl Chicago O'Hare Intl

$4,812Air Canada

Sat, 15 Aug - Sat, 22 Aug

19:30 - 06:55SDF Louisville Intl-SYD Sydney Kingsford Smith

21h 25m1 stop Dallas/Fort Worth

12:00 - 18:28SYD Sydney Kingsford Smith-SDF Louisville Intl

20h 28m1 stop Dallas/Fort Worth

$5,114Qantas Airways

Thu, 13 Aug - Sat, 15 Aug

11:05 - 15:30SDF Louisville Intl-SYD Sydney Kingsford Smith

38h 25m3 stops Chicago O'Hare Intl Hong Kong Intl Melbourne

18:45 - 23:17SYD Sydney Kingsford Smith-SDF Louisville Intl

42h 32m3 stops Brisbane Hong Kong Intl Dallas/Fort Worth

$5,559Multiple Airlines

Thu, 13 Aug - Sat, 15 Aug

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Cathay Pacific flights from Louisville to Australia

Our best Cathay Pacific deals on Louisville to Australia flight tickets

Cathay Pacific

10 Sept

SDF10:29Louisville Intl

35h 16m

2 stops

SYD11:45Sydney Kingsford Smith

16 Sept

SYD21:55Sydney Kingsford Smith

39h 30m

2 stops

SDF23:25Louisville Intl

$2,080

Cathay Pacific

1 Sept

SDF06:28Louisville Intl

39h 17m

2 stops

SYD11:45Sydney Kingsford Smith

8 Sept

SYD07:40Sydney Kingsford Smith

49h 10m

2 stops

SDF18:50Louisville Intl

$2,088

Cathay Pacific

6 Sept

SDF13:19Louisville Intl

42h 56m

2 stops

MEL22:15Melbourne

13 Sept

MEL07:25Melbourne

30h 00m

2 stops

SDF23:25Louisville Intl

$2,330

United Airlines flights from Louisville to Australia

Our best United Airlines deals on Louisville to Australia flight tickets

United Airlines

7 Sept

SDF15:35Louisville Intl

25h 55m

2 stops

MEL07:30Melbourne

28 Sept

MEL10:55Melbourne

27h 04m

2 stops

SDF23:59Louisville Intl

$1,795

United Airlines

6 Sept

SDF15:25Louisville Intl

50h 50m

2 stops

MEL08:15Melbourne

27 Sept

MEL10:55Melbourne

23h 36m

2 stops

SDF20:31Louisville Intl

$1,817

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

$1,853

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleMelbourne

SDF Louisville Intl - MEL Melbourne

SDFMEL

Louisville Intl

Tue 19/1

10:43-08:00

2 stops29h 17m

Melbourne

Tue 2/2

10:10-21:41

2 stops27h 31m

$1,789

LouisvilleMelbourne

SDF Louisville Intl - MEL Melbourne

SDFMEL

Louisville Intl

Mon 7/9

15:35-07:30

2 stops25h 55m

Melbourne

Mon 28/9

10:55-23:59

2 stops27h 04m

$1,795

LouisvilleMelbourne

SDF Louisville Intl - MEL Melbourne

SDFMEL

Louisville Intl

Tue 8/9

16:29-07:50

2 stops49h 21m

Melbourne

Wed 30/9

10:00-21:30

2 stops25h 30m

$1,812

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 27/1

18:32-20:50

2 stops34h 18m

Sydney Kingsford Smith

Sat 13/2

14:05-17:35

1 stop19h 30m

$1,815

LouisvilleMelbourne

SDF Louisville Intl - MEL Melbourne

SDFMEL

Louisville Intl

Sun 6/9

15:25-08:15

2 stops50h 50m

Melbourne

Wed 30/9

10:55-23:59

2 stops27h 04m

$1,817

Fastest return journey

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

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

$1,853

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 29/11

15:45-07:00

1 stop23h 15m

Sydney Kingsford Smith

Mon 7/12

09:20-13:33

1 stop20h 13m

$1,853

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 1/12

15:50-09:20

2 stops25h 30m

Sydney Kingsford Smith

Tue 8/12

13:20-22:09

2 stops24h 49m

$1,859

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 6/9

12:33-07:00

2 stops28h 27m

Sydney Kingsford Smith

Mon 14/9

09:30-22:29

2 stops26h 59m

$1,859

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 29/9

10:25-06:55

2 stops30h 30m

Sydney Kingsford Smith

Tue 6/10

11:20-19:55

2 stops23h 35m

$1,859

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 $1,714. 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 $1,745.

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	23h 10m
Direct flights	None

The fastest flight from Louisville to Australia takes 23h 10m

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.