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Cheap flights from Louisville to Sydney from $938

SDF — SYD
28 Sep — 5 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Louisville to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to Sydney

Tue 29/915:36 -
2 stops25h 24m
Sun 11/1010:30 -
2 stops24h 25m
Deal found 26/8$1,811
Wed 18/1108:00 -
2 stops33h 05m
Wed 25/1109:15 -
1 stop28h 43m
Deal found 27/8$1,823
Wed 18/1115:24 -
2 stops25h 41m
Tue 1/1209:20 -
2 stops28h 37m
Deal found 27/8$1,829
Tue 1/1208:00 -
2 stops32h 30m
Tue 8/1210:40 -
2 stops27h 11m
Deal found 25/8$1,830
Thu 27/815:35 -
2 stops25h 25m
Thu 3/909:30 -
2 stops27h 01m
Deal found 26/8$1,871
Tue 29/915:43 -
2 stops25h 07m
Sat 10/1010:15 -
2 stops27h 36m
Deal found 26/8$1,880
Wed 18/1108:00 -
2 stops33h 05m
Fri 27/1109:15 -
1 stop27h 18m
Deal found 27/8$1,893
Fri 20/1110:27 -
2 stops30h 38m
Tue 1/1209:20 -
1 stop28h 33m
Deal found 27/8$1,898
Thu 1/1007:05 -
2 stops33h 45m
Mon 12/1010:15 -
2 stops27h 36m
Deal found 26/8$1,900
Thu 19/1108:00 -
2 stops33h 05m
Thu 26/1109:20 -
1 stop20h 03m
Deal found 27/8$1,963
Fri 20/1110:27 -
2 stops30h 38m
Fri 27/1109:15 -
1 stop20h 08m
Deal found 27/8$1,968
Sun 22/1115:45 -
2 stops25h 20m
Mon 30/1109:20 -
2 stops29h 04m
Deal found 27/8$1,974

Find flight deals from Louisville to Sydney

Round-trip from

$1,811

One-way from

$938

Popular in

December

Cheapest in

August

Average price

$1,658
United Airlines
  • United Airlines
  • 29/9-12/10
  • 4 total stops
  • 49h 29m total
  • Louisville to Sydney
Search Deals
United Airlines
  • United Airlines
  • 28/10
  • 1 total stop
  • 30h 50m total
  • Louisville to Sydney
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($65 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($78 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

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Price

Cheapest return flight
Fastest return journey

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 1/12

15:30-07:00

1 stop23h 30m

Sydney Kingsford Smith

Tue 8/12

09:20-13:23

1 stop20h 03m

$1,823

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 18/11

15:24-09:05

2 stops25h 41m

Sydney Kingsford Smith

Tue 1/12

09:20-21:57

2 stops28h 37m

$1,829

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 22/11

14:10-09:05

2 stops26h 55m

Sydney Kingsford Smith

Tue 1/12

09:20-21:57

2 stops28h 37m

$1,829

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 1/12

08:00-08:30

2 stops32h 30m

Sydney Kingsford Smith

Tue 8/12

10:40-21:51

2 stops27h 11m

$1,830

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 27/1

09:00-06:20

2 stops29h 20m

Sydney Kingsford Smith

Sat 13/2

09:20-13:33

1 stop20h 13m

$1,898

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 22/11

15:45-09:05

2 stops25h 20m

Sydney Kingsford Smith

Mon 30/11

09:20-22:24

2 stops29h 04m

$1,974

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 17/11

09:10-07:00

1 stop29h 50m

Sydney Kingsford Smith

Sat 28/11

09:20-22:24

2 stops29h 04m

$1,975

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 27/1

12:41-06:25

2 stops25h 44m

Sydney Kingsford Smith

Sat 13/2

11:05-21:17

3 stops26h 12m

$2,111
Cheapest one-way

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 28/10

09:10-07:00

1 stop30h 50m

$938

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 28/10

10:16-18:00

3 stops40h 44m

$1,123

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 11 resultsSorted by cheapest first
1
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Best time to book a flight from Louisville to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Louisville with our price prediction graph.
Estimated return price

Related info for your journey

  • How long is the flight from Louisville to Sydney?

    There are many flights that can get you from Louisville to Sydney in 23h 30m. Fly via United Airlines to get the fastest option. Louisville and Sydney are separated by a distance of 14948 km.

  • Can I find deals for flights from Louisville to Sydney that include hotel bookings?

    Yes. In addition to deals on Louisville to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Sydney.

  • Can I find deals for business class flights from Louisville to Sydney?

    Yes. Cheapflights offers flight deals from Louisville to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Katoomba
Lithgow
Cronulla
Terrigal
Randwick
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Louisville to Sydney

Nashville to Sydney flights
Cincinnati to Sydney flights

Fly with Cheapflights

How does Cheapflights help users find flights from Louisville to Sydney?

Cheapflights helps you search for flights from Louisville to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Louisville to Sydney?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Louisville to Sydney for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Louisville to Sydney with no change fees?

Certainly. Search results for flights to Sydney from Louisville shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Louisville to Sydney become cheaper?

Yes, Cheapflights offers price alerts on Louisville to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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