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Cheap flights from Louisville to Sydney from $926

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
10 May — 17 May1
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 10 April 2026.

Tue 9/615:41
SDF
-
SYD
2 stops25h 14m
United Airlines
Wed 17/609:30
SYD
-
SDF
2 stops24h 31m
United Airlines
Deal found 7/4$1,885
Wed 10/615:41
SDF
-
SYD
2 stops25h 14m
United Airlines
Wed 17/609:30
SYD
-
SDF
2 stops24h 53m
United Airlines
Deal found 8/4$1,887
Fri 16/1014:15
SDF
-
SYD
2 stops26h 35m
Delta
Fri 30/1009:40
SYD
-
SDF
2 stops23h 32m
Delta
Deal found 7/4$1,999
Sun 19/406:00
SDF
-
SYD
2 stops34h 50m
Delta
Wed 22/409:15
SYD
-
SDF
2 stops23h 29m
Delta
Deal found 6/4$2,010
Tue 21/406:00
SDF
-
SYD
2 stops34h 50m
Delta
Fri 24/409:15
SYD
-
SDF
2 stops28h 44m
Delta
Deal found 8/4$2,011
Fri 8/509:31
SDF
-
SYD
2 stops36h 19m
Multiple Airlines
Fri 15/517:50
SYD
-
SDF
1 stop39h 36m
Multiple Airlines
Deal found 8/4$2,095
Fri 16/1015:50
SDF
-
SYD
2 stops25h 10m
United Airlines
Fri 30/1011:50
SYD
-
SDF
1 stop22h 45m
United Airlines
Deal found 7/4$2,140
Sat 7/1113:55
SDF
-
SYD
2 stops25h 05m
United Airlines
Thu 19/1111:50
SYD
-
SDF
1 stop23h 45m
United Airlines
Deal found 6/4$2,146
Sat 17/1015:20
SDF
-
SYD
2 stops25h 40m
United Airlines
Wed 21/1010:30
SYD
-
SDF
2 stops26h 39m
United Airlines
Deal found 6/4$2,152
Wed 6/514:00
SDF
-
SYD
2 stops26h 55m
United Airlines
Sun 10/510:20
SYD
-
SDF
2 stops23h 57m
United Airlines
Deal found 9/4$2,153
Wed 26/815:25
SDF
-
SYD
2 stops49h 35m
United Airlines
Sat 5/910:20
SYD
-
SDF
2 stops23h 40m
United Airlines
Deal found 7/4$2,177

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 10 April 2026.

Round-trip from

$1,885

One-way from

$926

Popular in

March

Cheapest in

November

Average price

$2,245
United Airlines
  • United Airlines
  • 9/6-17/6
  • 4 total stops
  • 49h 45m total
  • Louisville to Sydney
Search Deals
Delta
  • Delta
  • 16/5
  • 2 total stops
  • 30h 11m total
  • Louisville to Sydney
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($414 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($104 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 10 April 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

Wed 10/6

15:41-07:00

2 stops25h 19m

Sydney Kingsford Smith

Wed 17/6

09:30-20:01

2 stops24h 31m

$1,885

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 5/5

15:37-06:55

2 stops25h 18m

Sydney Kingsford Smith

Tue 19/5

09:30-20:00

2 stops24h 30m

$1,885

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 9/6

15:25-07:00

2 stops25h 35m

Sydney Kingsford Smith

Wed 17/6

09:30-20:01

2 stops24h 31m

$1,885
Fastest return journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 20/5

15:30-06:55

2 stops25h 25m

Sydney Kingsford Smith

Wed 27/5

10:20-19:02

2 stops22h 42m

$1,885
Cheapest one-way

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

10:39-06:50

2 stops30h 11m

$926

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 18/5

11:12-06:50

2 stops29h 38m

$926

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

19:55-07:45

3 stops45h 50m

$2,079
Fastest single journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

19:55-06:55

1 stop21h 00m

$2,445

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Sorted by cheapest first

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.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Sydney

What is the cheapest month to book a flight from Louisville to Sydney?

Currently, October is the cheapest month in which you can book a flight from Louisville to Sydney (average of $536). Flying from Louisville to Sydney in January is currently the most expensive (average of $1,529). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Louisville to Sydney?

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 25h 19m. 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.

  • What is the cheapest month to book a flight from Louisville to Sydney?

    Currently, October is the cheapest month in which you can book a flight from Louisville to Sydney (average of $536). Flying from Louisville to Sydney in January is currently the most expensive (average of $1,529). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Terrigal
Katoomba
Lithgow
Cronulla
Manly
Bondi Beach
Coogee
Leura
Randwick

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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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