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

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

What airlines fly to Australia?

United Airlines, American Airlines and Qantas Airways are the top three most popular airlines that fly to Australia from Louisville according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 6 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Louisville Intl Airport to Australia refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Australia?

There are 2 operators available for flights from Louisville Intl Airport to Australia as of January 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Australia.

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

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$553 Cheap Flights from Louisville to Australia in 2026

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Find the cheapest flights from Louisville to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 6:35 am

SDF

SYD

27h 15m2 stops

9:15 am - 8:45 am

SYD

SDF

37h 30m2 stops

$1,169Delta

Tue, Jun 9 - Wed, Jun 17

8:05 am - 6:05 am

SDF

SYD

31h 00m2 stops

9:15 am - 10:43 pm

SYD

SDF

27h 28m2 stops

$1,219Delta

Thu, Mar 19 - Sun, Apr 5

9:15 am - 7:00 am

SDF

SYD

29h 45m1 stop

11:50 am - 9:46 pm

SYD

SDF

25h 56m1 stop

$1,272United Airlines

Sat, Feb 14 - Wed, Feb 18

3:30 pm - 7:00 am

SDF

SYD

23h 30m1 stop

11:50 am - 7:51 pm

SYD

SDF

24h 01m1 stop

$1,273United Airlines

Sun, Feb 15 - Sun, Feb 22

3:30 pm - 7:00 am

SDF

SYD

23h 30m1 stop

11:50 am - 7:51 pm

SYD

SDF

24h 01m1 stop

$1,297Air New Zealand

Mon, Feb 9 - Thu, Feb 12

6:00 am - 10:55 am

SDF

MEL

36h 55m2 stops

12:10 pm - 7:51 pm

MEL

SDF

23h 41m2 stops

$1,362Air New Zealand

Mon, Feb 16 - Fri, Feb 20

9:15 am - 8:20 pm

SDF

AVV

43h 05m2 stops

6:00 am - 9:59 pm

AVV

SDF

31h 59m2 stops

$1,575Multiple Airlines

Thu, Jan 29 - Thu, Feb 5

2:04 pm - 5:00 am

SDF

MEL

22h 56m1 stop

1:55 pm - 1:31 pm

MEL

SDF

39h 36m2 stops

$2,357Qantas Airways

Sat, Feb 14 - Sat, Feb 21

2:04 pm - 5:00 am

SDF

MEL

22h 56m1 stop

4:05 pm - 12:13 am

MEL

SDF

24h 08m1 stop

$2,384Multiple Airlines

Sat, Feb 14 - Sat, Feb 21

2:01 pm - 5:00 am

SDF

MEL

22h 59m1 stop

1:55 pm - 1:34 pm

MEL

SDF

39h 39m2 stops

$2,601Qantas Airways

Mon, Feb 16 - Fri, Feb 20

United Airlines flights from Louisville to Australia

Our best United Airlines deals on Louisville to Australia flight tickets

United Airlines

Feb 14

SDF9:15 amLouisville Intl

29h 45m

1 stop

SYD7:00 amSydney Kingsford Smith

Feb 18

SYD11:50 amSydney Kingsford Smith

25h 56m

1 stop

SDF9:46 pmLouisville Intl

$1,272

Find similar

United Airlines

Feb 15

SDF3:30 pmLouisville Intl

23h 30m

1 stop

SYD7:00 amSydney Kingsford Smith

Feb 22

SYD11:50 amSydney Kingsford Smith

24h 01m

1 stop

SDF7:51 pmLouisville Intl

$1,273

Find similar

United Airlines

Feb 14

SDF3:15 pmLouisville Intl

26h 00m

2 stops

SYD9:15 amSydney Kingsford Smith

Feb 18

SYD12:10 pmSydney Kingsford Smith

26h 03m

2 stops

SDF10:13 pmLouisville Intl

$1,277

Find similar

Delta flights from Louisville to Australia

Our best Delta deals on Louisville to Australia flight tickets

Delta

Jun 9

SDF1:20 pmLouisville Intl

27h 15m

2 stops

SYD6:35 amSydney Kingsford Smith

Jun 17

SYD9:15 amSydney Kingsford Smith

37h 30m

2 stops

SDF8:45 amLouisville Intl

$1,169

Find similar

Delta

Mar 19

SDF8:05 amLouisville Intl

31h 00m

2 stops

SYD6:05 amSydney Kingsford Smith

Apr 5

SYD9:15 amSydney Kingsford Smith

27h 28m

2 stops

SDF10:43 pmLouisville Intl

$1,219

Find similar

Delta

Feb 13

SDF12:12 pmLouisville Intl

28h 18m

2 stops

SYD8:30 amSydney Kingsford Smith

Feb 20

SYD10:40 amSydney Kingsford Smith

28h 07m

2 stops

SDF10:47 pmLouisville Intl

$1,269

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

1:20 pm-6:35 am

2 stops27h 15m

Sydney Kingsford Smith

Wed 6/17

9:15 am-8:45 am

2 stops37h 30m

$1,169

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 3/19

8:05 am-6:05 am

2 stops31h 00m

Sydney Kingsford Smith

Sun 4/5

9:15 am-10:43 pm

2 stops27h 28m

$1,219

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 2/14

9:15 am-7:00 am

1 stop29h 45m

Sydney Kingsford Smith

Wed 2/18

11:50 am-9:46 pm

1 stop25h 56m

$1,272

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 2/15

3:30 pm-7:00 am

1 stop23h 30m

Sydney Kingsford Smith

Sun 2/22

11:50 am-7:51 pm

1 stop24h 01m

$1,273

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 2/9

3:30 pm-7:00 am

1 stop23h 30m

Sydney Kingsford Smith

Thu 2/12

11:50 am-7:51 pm

1 stop24h 01m

$1,297

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Mon 2/16

6:00 am-10:55 am

2 stops36h 55m

Melbourne

Fri 2/20

12:10 pm-7:51 pm

2 stops23h 41m

$1,362

LouisvilleMelbourne

SDF - AVV

SDFAVV

Louisville Intl

Thu 1/29

9:15 am-8:20 pm

2 stops43h 05m

Melbourne Avalon

Thu 2/5

6:00 am-9:59 pm

2 stops31h 59m

$1,575

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sat 2/14

2:04 pm-5:00 am

1 stop22h 56m

Melbourne

Sat 2/21

1:55 pm-1:31 pm

2 stops39h 36m

$2,357

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sat 2/14

2:04 pm-5:00 am

1 stop22h 56m

Melbourne

Sat 2/21

4:05 pm-12:13 am

1 stop24h 08m

$2,384

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Mon 2/16

2:01 pm-5:00 am

1 stop22h 59m

Melbourne

Fri 2/20

1:55 pm-1:34 pm

2 stops39h 39m

$2,601

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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?

The month of November is, on average, the cheapest month to fly to Australia from Louisville, with most prices found around $1,142. If you aren’t able to travel during the month of November, then book flights to Australia from Louisville during March instead. Flights to Australia in March, while not as cheap as those in November, still average around $1,199.

Can stopping save me money on Louisville to Australia flights?

You could potentially save up to 5% 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 30m
Direct flights	None

The fastest flight from Louisville to Australia takes 23h 30m

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 refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Australia?
There are 2 operators available for flights from Louisville Intl Airport to Australia as of January 2026.
How old do you have to be to fly from Louisville Intl Airport to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to Australia

Compare and see reviews for airlines that fly from Louisville to Australia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $930	Free Cancellation	Rating 7.4 9,132 reviews	Search United Airlines flights
Delta	PriceFrom $979	Free Cancellation	Rating 7.9 8,017 reviews	Search Delta flights
Air New Zealand	PriceFrom $1,380	Free Cancellation	Rating 8.0 563 reviews	Search Air New Zealand flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Australia. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Louisville to Australia flights to just show those with flexible booking policies.

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

Once you have performed a search for Louisville to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Louisville to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.