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

Delta is the most popular carrier operating from Louisville Intl to Australia

What airlines fly to Australia?

United Airlines, Qantas Airways and American Airlines 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 42% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 4 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 April 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.

$653 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.

3:41 pm - 7:00 am

SDF

SYD

25h 19m

2 stops

9:30 am - 8:23 pm

SYD

SDF

24h 53m

2 stops

$1,330United Airlines

Tue, Jun 9 - Wed, Jun 17

3:41 pm - 7:00 am

SDF

SYD

25h 19m

2 stops

10:20 am - 8:23 pm

SYD

SDF

24h 03m

2 stops

$1,331United Airlines

Tue, Jun 9 - Wed, Jun 17

7:20 am - 7:00 am

SDF

SYD

33h 40m

2 stops

9:30 am - 11:59 pm

SYD

SDF

28h 29m

2 stops

$1,380United Airlines

Mon, Apr 13 - Fri, Apr 24

8:10 am - 6:50 am

SDF

SYD

32h 40m

2 stops

9:15 am - 8:56 am

SYD

SDF

37h 41m

2 stops

$1,418Delta

Tue, May 26 - Mon, Jun 1

12:38 pm - 7:50 am

SDF

MEL

29h 12m

2 stops

10:00 am - 11:50 pm

MEL

SDF

27h 50m

2 stops

$1,490Delta

Wed, Jun 24 - Wed, Jul 8

7:58 pm - 6:50 am

SDF

SYD

44h 52m

2 stops

9:15 am - 9:12 pm

SYD

SDF

25h 57m

2 stops

$1,659Multiple Airlines

Mon, Jul 20 - Fri, Jul 24

9:30 am - 8:45 am

SDF

SYD

33h 15m

2 stops

11:55 am - 9:02 am

SYD

SDF

35h 07m

3 stops

$1,744Multiple Airlines

Wed, Jun 10 - Wed, Jun 17

8:06 pm - 6:45 am

SDF

MEL

44h 39m

2 stops

1:35 pm - 11:06 pm

MEL

SDF

23h 31m

1 stop

$1,891Qantas Airways

Tue, Sep 1 - Wed, Sep 30

7:29 pm - 5:00 am

SDF

MEL

43h 31m

1 stop

1:35 pm - 11:06 pm

MEL

SDF

23h 31m

1 stop

$2,106Qantas Airways

Tue, Sep 1 - Wed, Sep 30

10:43 am - 6:35 pm

SDF

PER

43h 52m

2 stops

10:45 pm - 11:01 pm

PER

SDF

36h 16m

2 stops

$2,114Qatar Airways

Wed, Jul 15 - Tue, Aug 18

United Airlines flights from Louisville to Australia

Our best United Airlines deals on Louisville to Australia flight tickets

United Airlines

Jun 9

SDF8:00 amLouisville Intl

33h 00m

3 stops

SYD7:00 amSydney Kingsford Smith

Jun 17

SYD10:20 amSydney Kingsford Smith

23h 41m

2 stops

SDF8:01 pmLouisville Intl

$1,330

United Airlines

Jun 9

SDF3:41 pmLouisville Intl

25h 19m

2 stops

SYD7:00 amSydney Kingsford Smith

Jun 17

SYD10:20 amSydney Kingsford Smith

24h 03m

2 stops

SDF8:23 pmLouisville Intl

$1,331

United Airlines

Apr 13

SDF7:20 amLouisville Intl

33h 40m

2 stops

SYD7:00 amSydney Kingsford Smith

Apr 24

SYD9:30 amSydney Kingsford Smith

28h 29m

2 stops

SDF11:59 pmLouisville Intl

$1,380

Qantas Airways flights from Louisville to Australia

Our best Qantas Airways deals on Louisville to Australia flight tickets

Qantas Airways

Sep 1

SDF8:06 pmLouisville Intl

44h 39m

2 stops

MEL6:45 amMelbourne

Sep 30

MEL1:35 pmMelbourne

23h 31m

1 stop

SDF11:06 pmLouisville Intl

$1,891

Qantas Airways

Aug 26

SDF5:50 pmLouisville Intl

23h 05m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 5

SYD12:00 pmSydney Kingsford Smith

25h 06m

1 stop

SDF11:06 pmLouisville Intl

$1,912

Qantas Airways

Aug 26

SDF7:29 pmLouisville Intl

21h 26m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 5

SYD12:00 pmSydney Kingsford Smith

25h 06m

1 stop

SDF11:06 pmLouisville Intl

$1,944

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

3:41 pm-7:00 am

2 stops25h 19m

Sydney Kingsford Smith

Wed 6/17

9:30 am-8:23 pm

2 stops24h 53m

$1,330

Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

3:41 pm-7:00 am

2 stops25h 19m

Sydney Kingsford Smith

Wed 6/17

10:20 am-8:23 pm

2 stops24h 03m

$1,331

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 4/13

7:20 am-7:00 am

2 stops33h 40m

Sydney Kingsford Smith

Fri 4/24

9:30 am-11:59 pm

2 stops28h 29m

$1,380

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 5/26

8:10 am-6:50 am

2 stops32h 40m

Sydney Kingsford Smith

Mon 6/1

9:15 am-8:56 am

2 stops37h 41m

$1,418

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Wed 6/24

12:38 pm-7:50 am

2 stops29h 12m

Melbourne

Wed 7/8

10:00 am-11:50 pm

2 stops27h 50m

$1,490

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 7/20

7:58 pm-6:50 am

2 stops44h 52m

Sydney Kingsford Smith

Fri 7/24

9:15 am-9:12 pm

2 stops25h 57m

$1,659

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 6/10

9:30 am-8:45 am

2 stops33h 15m

Sydney Kingsford Smith

Wed 6/17

11:55 am-9:02 am

3 stops35h 07m

$1,744

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Tue 9/1

8:06 pm-6:45 am

2 stops44h 39m

Melbourne

Wed 9/30

1:35 pm-11:06 pm

1 stop23h 31m

$1,891

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Tue 9/1

7:29 pm-5:00 am

1 stop43h 31m

Melbourne

Wed 9/30

1:35 pm-11:06 pm

1 stop23h 31m

$2,106

LouisvillePerth

SDF - PER

SDFPER

Louisville Intl

Wed 7/15

10:43 am-6:35 pm

2 stops43h 52m

Perth

Tue 8/18

10:45 pm-11:01 pm

2 stops36h 16m

$2,114

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 $1,228. If you aren’t able to travel during the month of November, then book flights to Australia from Louisville during August instead. Flights to Australia in August, while not as cheap as those in November, still average around $1,232.

Can stopping save me money on Louisville to Australia flights?

You could potentially save up to 4% 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 35m
Direct flights	None

The fastest flight from Louisville to Australia takes 25h 35m

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 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 April 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 $973	Free Cancellation	Rating 7.4 9,538 reviews		Search United Airlines flights
Delta	PriceFrom $985	Free Cancellation	Rating 7.9 8,374 reviews		Search Delta 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.