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Cheap flights from Louisville to Sydney from $985

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
9 Jun — 16 Jun1
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 May 2026.

Sun 26/715:41
SDF
-
SYD
2 stops25h 19m
United Airlines
Sun 9/809:30
SYD
-
SDF
2 stops24h 53m
United Airlines
Deal found 8/5$1,608
Tue 28/715:41
SDF
-
SYD
2 stops25h 19m
United Airlines
Fri 7/810:20
SYD
-
SDF
2 stops24h 03m
United Airlines
Deal found 7/5$1,673
Sat 25/715:25
SDF
-
SYD
2 stops25h 35m
United Airlines
Tue 4/809:30
SYD
-
SDF
2 stops23h 31m
United Airlines
Deal found 8/5$1,674
Fri 5/615:25
SDF
-
SYD
2 stops25h 30m
United Airlines
Fri 19/609:30
SYD
-
SDF
2 stops24h 53m
United Airlines
Deal found 7/5$1,739
Sat 25/708:00
SDF
-
SYD
2 stops32h 55m
United Airlines
Fri 7/810:20
SYD
-
SDF
2 stops42h 08m
United Airlines
Deal found 8/5$1,755
Tue 28/710:00
SDF
-
SYD
2 stops30h 50m
Delta
Wed 5/809:15
SYD
-
SDF
2 stops23h 56m
Delta
Deal found 8/5$1,790
Fri 31/713:02
SDF
-
SYD
2 stops27h 48m
Delta
Mon 10/809:15
SYD
-
SDF
2 stops24h 15m
Delta
Deal found 8/5$1,856
Sat 25/716:28
SDF
-
SYD
2 stops48h 22m
Delta
Sat 8/809:15
SYD
-
SDF
2 stops28h 41m
Delta
Deal found 8/5$1,878
Wed 29/709:21
SDF
-
SYD
1 stop32h 09m
Multiple Airlines
Tue 4/813:15
SYD
-
SDF
2 stops44h 11m
Multiple Airlines
Deal found 8/5$1,889
Wed 29/709:21
SDF
-
SYD
1 stop32h 09m
Multiple Airlines
Fri 7/813:15
SYD
-
SDF
2 stops44h 11m
Multiple Airlines
Deal found 8/5$1,904
Tue 9/608:10
SDF
-
SYD
2 stops32h 40m
Delta
Wed 17/609:15
SYD
-
SDF
2 stops24h 09m
Delta
Deal found 6/5$1,944
Sun 4/1014:15
SDF
-
SYD
2 stops26h 35m
Delta
Sun 11/1010:15
SYD
-
SDF
2 stops37h 35m
Delta
Deal found 5/5$2,020

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 May 2026.

Round-trip from

$1,608

One-way from

$985

Popular in

January

Cheapest in

August

Average price

$1,845
United Airlines
  • United Airlines
  • 26/7-5/8
  • 4 total stops
  • 50h 06m total
  • Louisville to Sydney
Search Deals
United Airlines
  • United Airlines
  • 16/5
  • 2 total stops
  • 25h 30m total
  • Louisville to Sydney
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($629 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 May 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

Fri 5/6

15:25-06:55

2 stops25h 30m

Sydney Kingsford Smith

Fri 19/6

09:30-20:23

2 stops24h 53m

$1,739

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 10/6

10:00-06:50

2 stops30h 50m

Sydney Kingsford Smith

Wed 17/6

09:15-21:15

2 stops26h 00m

$1,944

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 9/6

06:00-06:50

2 stops34h 50m

Sydney Kingsford Smith

Wed 17/6

09:15-17:49

2 stops22h 34m

$2,037
Fastest return journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 6/9

15:25-07:00

2 stops25h 35m

Sydney Kingsford Smith

Sat 19/9

09:30-18:56

2 stops23h 26m

$2,060

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 27/5

15:25-06:55

2 stops25h 30m

Sydney Kingsford Smith

Sun 31/5

09:30-22:15

2 stops26h 45m

$2,102

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 30/7

08:00-06:55

2 stops32h 55m

Sydney Kingsford Smith

Sat 8/8

10:20-14:28

2 stops42h 08m

$2,119

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/9

15:41-08:45

2 stops27h 04m

Sydney Kingsford Smith

Fri 18/9

09:55-00:05

3 stops28h 10m

$2,475

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 26/8

06:28-20:10

2 stops47h 42m

Sydney Kingsford Smith

Sat 5/9

17:20-23:12

3 stops43h 52m

$2,685

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 17/7

08:10-06:50

2 stops32h 40m

Sydney Kingsford Smith

Fri 24/7

09:15-23:50

2 stops28h 35m

$2,723
Cheapest one-way
Fastest single journey

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 16/5

15:30-07:00

2 stops25h 30m

$985

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 14 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.

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 25h 30m. 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
Terrigal
Lithgow
Manly
Cronulla
Bondi Beach
Leura
Randwick
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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