What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

Delta and Qantas Airways are the most popular carriers operating from Louisville Intl to Sydney Kingsford Smith

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport were last updated today.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The necessary travel and health documents for your Sydney Kingsford Smith Airport 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 licence 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.

$909 Cheap Flights from Louisville to Sydney in 2026

Q: What is the typical price of a round-trip flight between Louisville and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $2,481 to $2,141. The lowest price recently found on this route was $1,940.

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Find the cheapest flights from Louisville to Sydney

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 - 20:01

SYD

SDF

23h 41m

2 stops

$1,940United Airlines

Tue, 9 Jun - Wed, 17 Jun

15:41 - 07:00

SDF

SYD

25h 19m

2 stops

10:20 - 20:23

SYD

SDF

24h 03m

2 stops

$1,941United Airlines

Tue, 9 Jun - Wed, 17 Jun

16:28 - 06:50

SDF

SYD

48h 22m

2 stops

09:15 - 19:11

SYD

SDF

23h 56m

2 stops

$1,966Delta

Sat, 16 May - Wed, 10 Jun

16:28 - 06:50

SDF

SYD

48h 22m

2 stops

09:15 - 17:19

SYD

SDF

46h 04m

2 stops

$1,991Delta

Sat, 16 May - Sun, 14 Jun

09:21 - 11:50

SDF

SYD

36h 29m

2 stops

17:50 - 19:26

SYD

SDF

39h 36m

1 stop

$1,997Multiple Airlines

Sat, 16 May - Tue, 9 Jun

14:34 - 06:50

SDF

SYD

26h 16m

2 stops

09:15 - 09:55

SYD

SDF

38h 40m

2 stops

$2,005Delta

Sun, 10 May - Fri, 12 Jun

09:21 - 11:50

SDF

SYD

36h 29m

2 stops

17:50 - 19:26

SYD

SDF

39h 36m

1 stop

$2,013Multiple Airlines

Wed, 13 May - Tue, 9 Jun

15:36 - 06:55

SDF

SYD

25h 19m

2 stops

10:20 - 22:30

SYD

SDF

26h 10m

2 stops

$2,014United Airlines

Thu, 14 May - Mon, 15 Jun

16:28 - 06:50

SDF

SYD

48h 22m

2 stops

09:15 - 11:57

SYD

SDF

40h 42m

2 stops

$2,030Delta

Sat, 16 May - Thu, 11 Jun

15:29 - 06:50

SDF

SYD

25h 21m

2 stops

09:15 - 23:22

SYD

SDF

28h 07m

2 stops

$2,070Delta

Thu, 14 May - Thu, 11 Jun

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

Qantas Airways

26 Aug

SDF17:50Louisville Intl

23h 05m

1 stop

SYD06:55Sydney Kingsford Smith

5 Sept

SYD12:00Sydney Kingsford Smith

19h 29m

1 stop

SDF17:29Louisville Intl

$2,790

Qantas Airways

26 Aug

SDF17:50Louisville Intl

23h 05m

1 stop

SYD06:55Sydney Kingsford Smith

5 Sept

SYD12:00Sydney Kingsford Smith

25h 06m

1 stop

SDF23:06Louisville Intl

$2,792

Qantas Airways

26 Aug

SDF19:29Louisville Intl

21h 26m

1 stop

SYD06:55Sydney Kingsford Smith

5 Sept

SYD12:00Sydney Kingsford Smith

25h 06m

1 stop

SDF23:06Louisville Intl

$2,835

Delta flights from Louisville to Sydney

Our best Delta deals on Louisville to Sydney flight tickets

Delta

16 May

SDF16:28Louisville Intl

48h 22m

2 stops

SYD06:50Sydney Kingsford Smith

10 June

SYD09:15Sydney Kingsford Smith

23h 56m

2 stops

SDF19:11Louisville Intl

$1,966

Delta

16 May

SDF16:28Louisville Intl

48h 22m

2 stops

SYD06:50Sydney Kingsford Smith

14 June

SYD09:15Sydney Kingsford Smith

46h 04m

2 stops

SDF17:19Louisville Intl

$1,991

Delta

10 May

SDF14:34Louisville Intl

26h 16m

2 stops

SYD06:50Sydney Kingsford Smith

12 June

SYD09:15Sydney Kingsford Smith

38h 40m

2 stops

SDF09:55Louisville Intl

$2,005

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 9/6

08:00-07:00

3 stops33h 00m

Sydney Kingsford Smith

Wed 17/6

10:20-20:01

2 stops23h 41m

$1,940

Fastest return journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 9/6

15:41-07:00

2 stops25h 19m

Sydney Kingsford Smith

Wed 17/6

10:20-20:23

2 stops24h 03m

$1,941

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

16:28-06:50

2 stops48h 22m

Sydney Kingsford Smith

Wed 10/6

09:15-19:11

2 stops23h 56m

$1,966

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

16:28-06:50

2 stops48h 22m

Sydney Kingsford Smith

Sun 14/6

09:15-17:19

2 stops46h 04m

$1,991

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

09:21-11:50

2 stops36h 29m

Sydney Kingsford Smith

Tue 9/6

17:50-19:26

1 stop39h 36m

$1,997

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 10/5

14:34-06:50

2 stops26h 16m

Sydney Kingsford Smith

Fri 12/6

09:15-09:55

2 stops38h 40m

$2,005

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 13/5

09:21-11:50

2 stops36h 29m

Sydney Kingsford Smith

Tue 9/6

17:50-19:26

1 stop39h 36m

$2,013

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 14/5

15:36-06:55

2 stops25h 19m

Sydney Kingsford Smith

Mon 15/6

10:20-22:30

2 stops26h 10m

$2,014

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

16:28-06:50

2 stops48h 22m

Sydney Kingsford Smith

Thu 11/6

09:15-11:57

2 stops40h 42m

$2,030

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 14/5

15:29-06:50

2 stops25h 21m

Sydney Kingsford Smith

Thu 11/6

09:15-23:22

2 stops28h 07m

$2,070

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

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 typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

The month of November is, on average, the cheapest month to fly to Sydney from Louisville, with most prices found around $1,791. If you aren’t able to travel to Sydney during the month of November, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,797.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 9% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

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

Fastest flight time	25h 14m
Direct flights	None

The fastest flight from Louisville to Sydney takes 25h 14m

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

Search flight deals

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 14942.2 km. In terms of flight time, this usually takes a little over 25h 14m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport were last updated today.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport 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 licence 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.

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

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

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

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

Flights from Louisville to Sydney 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 Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.