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Cheap flights from Louisville to Sydney from $1,650

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
5 Aug — 12 Aug1
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 6 July 2026.

Mon 17/819:03
SDF
-
SYD
1 stop21h 52m
Qantas Airways
Mon 24/812:00
SYD
-
SDF
1 stop24h 17m
Qantas Airways
Deal found 3/7$1,650
Mon 27/708:00
SDF
-
SYD
2 stops33h 00m
United Airlines
Mon 10/809:30
SYD
-
SDF
2 stops23h 26m
United Airlines
Deal found 4/7$1,714
Wed 26/816:01
SDF
-
SYD
1 stop24h 54m
Qantas Airways
Sat 5/912:00
SYD
-
SDF
1 stop24h 17m
Qantas Airways
Deal found 3/7$1,719
Mon 17/817:53
SDF
-
SYD
1 stop23h 02m
Multiple Airlines
Mon 24/812:00
SYD
-
SDF
2 stops25h 11m
Multiple Airlines
Deal found 3/7$1,738
Wed 26/819:03
SDF
-
SYD
1 stop21h 52m
Multiple Airlines
Sat 5/906:25
SYD
-
SDF
3 stops29h 00m
Multiple Airlines
Deal found 4/7$1,760
Thu 20/819:30
SDF
-
SYD
1 stop21h 25m
Multiple Airlines
Thu 27/806:25
SYD
-
SDF
3 stops29h 00m
Multiple Airlines
Deal found 6/7$1,761
Wed 23/917:59
SDF
-
SYD
1 stop22h 56m
Qantas Airways
Sun 11/1013:00
SYD
-
SDF
1 stop19h 17m
Qantas Airways
Deal found 4/7$1,817
Tue 1/1215:50
SDF
-
SYD
1 stop23h 10m
United Airlines
Tue 8/1209:20
SYD
-
SDF
1 stop20h 13m
United Airlines
Deal found 3/7$1,881

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 6 July 2026.

Round-trip from

$1,650

Popular in

December

Cheapest in

February

Average price

$1,915
Qantas Airways
  • Qantas Airways
  • 17/8-24/8
  • 2 total stops
  • 46h 09m total
  • Louisville to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($287 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($89 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 6 July 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

Mon 27/7

08:00-07:00

2 stops33h 00m

Sydney Kingsford Smith

Mon 10/8

09:30-18:56

2 stops23h 26m

$1,714

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 26/8

19:03-06:55

1 stop21h 52m

Sydney Kingsford Smith

Sat 5/9

06:25-21:25

3 stops29h 00m

$1,760

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 20/8

19:30-06:55

1 stop21h 25m

Sydney Kingsford Smith

Thu 27/8

06:25-21:25

3 stops29h 00m

$1,761
Fastest return journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 26/8

19:03-06:55

1 stop21h 52m

Sydney Kingsford Smith

Sat 5/9

12:00-18:28

1 stop20h 28m

$1,803

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

$1,881

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 26/8

15:25-07:00

2 stops49h 35m

Sydney Kingsford Smith

Sat 5/9

10:20-20:36

2 stops24h 16m

$1,881
Cheapest one-way

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 28/7

06:48-11:45

2 stops38h 57m

$7,139

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 28/7

06:00-06:10

3 stops58h 10m

$7,242
Fastest single journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 28/7

08:00-07:00

1 stop33h 00m

$9,362

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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

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 21h 52m. Fly via United Airlines or Qantas Airways 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
Manly
Katoomba
Lithgow
Cronulla
Terrigal
Randwick
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.
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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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