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Cheap flights from Louisville to Sydney from $920

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
1 Sep — 8 Sep1
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
Explore the most affordable flight options available from Louisville to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2026.

Wed 19/815:35
SDF
-
SYD
2 stops25h 20m
United Airlines
Wed 26/809:30
SYD
-
SDF
2 stops26h 45m
United Airlines
Deal found 29/7$1,694
Sun 2/815:41
SDF
-
SYD
2 stops25h 19m
United Airlines
Mon 10/809:30
SYD
-
SDF
2 stops28h 29m
United Airlines
Deal found 2/8$1,764
Sun 2/815:41
SDF
-
SYD
2 stops25h 19m
United Airlines
Thu 13/809:30
SYD
-
SDF
2 stops24h 29m
United Airlines
Deal found 2/8$1,835
Wed 5/815:25
SDF
-
SYD
2 stops25h 25m
Delta
Thu 13/809:15
SYD
-
SDF
2 stops23h 56m
Delta
Deal found 2/8$1,836
Mon 14/916:19
SDF
-
SYD
1 stop24h 36m
Qantas Airways
Mon 21/912:00
SYD
-
SDF
1 stop23h 43m
Qantas Airways
Deal found 30/7$1,838
Mon 3/808:00
SDF
-
SYD
2 stops32h 55m
United Airlines
Thu 13/810:20
SYD
-
SDF
2 stops42h 09m
United Airlines
Deal found 2/8$1,853
Tue 1/1215:50
SDF
-
SYD
1 stop23h 10m
United Airlines
Tue 8/1209:20
SYD
-
SDF
1 stop20h 13m
United Airlines
Deal found 29/7$1,858
Mon 3/819:50
SDF
-
SYD
1 stop21h 05m
Qantas Airways
Wed 12/812:00
SYD
-
SDF
1 stop24h 17m
Qantas Airways
Deal found 2/8$1,859
Tue 1/1212:39
SDF
-
SYD
2 stops27h 51m
Delta
Tue 8/1210:40
SYD
-
SDF
2 stops29h 25m
Delta
Deal found 31/7$1,863
Wed 19/819:03
SDF
-
SYD
1 stop21h 52m
Qantas Airways
Wed 26/812:00
SYD
-
SDF
1 stop24h 17m
Qantas Airways
Deal found 29/7$1,893
Mon 3/819:50
SDF
-
SYD
1 stop21h 05m
Qantas Airways
Mon 10/812:00
SYD
-
SDF
1 stop19h 23m
Qantas Airways
Deal found 2/8$1,913

Find flight deals from Louisville to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 August 2026.

Round-trip from

$1,694

One-way from

$920

Popular in

December

Cheapest in

August

Average price

$1,693
United Airlines
  • United Airlines
  • 19/8-26/8
  • 4 total stops
  • 52h 05m total
  • Louisville to Sydney
Search Deals
United Airlines
  • United Airlines
  • 15/8
  • 2 total stops
  • 49h 35m total
  • Louisville to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($222 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

 
Customise your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 2 August 2026.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 15/8

16:01-08:00

2 stops25h 59m

Sydney Kingsford Smith

Sun 23/8

21:25-10:39

2 stops27h 14m

$1,725
Fastest return journey

LouisvilleSydney

SDF - SYD

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

$1,858

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 1/12

12:39-08:30

2 stops27h 51m

Sydney Kingsford Smith

Tue 8/12

10:40-00:05

2 stops29h 25m

$1,863

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/9

17:50-06:50

2 stops23h 00m

Sydney Kingsford Smith

Wed 16/9

09:15-23:59

2 stops28h 44m

$1,865

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 27/1

07:05-07:00

1 stop31h 55m

Sydney Kingsford Smith

Sat 13/2

09:20-19:35

1 stop26h 15m

$1,929

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 28/1

15:20-09:20

2 stops26h 00m

Sydney Kingsford Smith

Sat 13/2

09:20-16:49

2 stops23h 29m

$2,005

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 28/1

12:41-06:25

2 stops25h 44m

Sydney Kingsford Smith

Sat 13/2

11:15-17:35

2 stops22h 20m

$2,030
Cheapest one-way

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 15/8

15:25-07:00

2 stops49h 35m

$920

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 13/11

07:00-07:00

1 stop32h 00m

$957

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 26/9

09:40-06:55

2 stops31h 15m

$957

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 13 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Louisville to Sydney?

    There are many flights that can get you from Louisville to Sydney in 23h 10m. Fly via United Airlines or Delta to get the fastest option. Louisville and Sydney are separated by a distance of 14948 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Katoomba
Manly
Lithgow
Cronulla
Randwick
Terrigal
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisville to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Sydney flights
Cincinnati to Sydney flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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