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Cheap flights from Louisville to Sydney from $1,432

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
18 Jun — 25 Jun1
1 adult

Cheap 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 13 June 2025.

Round-trip from

$1,432

Popular in

December

Cheapest in

April

Average price

$1,924
United Airlines
  • United Airlines
  • 12/9-3/10
  • 4 total stops
  • 51h 40m total
  • Louisville to Sydney
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($472 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($126 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Louisville to Sydney

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 13 June 2025.

Fri 12/915:30SDF - SYD
2 stops25h 30mUnited Airlines
Fri 3/1010:20SYD - SDF
2 stops26h 10mUnited Airlines
Deal found 12/6$1,432
Wed 24/914:59SDF - SYD
2 stops25h 36mDelta
Sun 12/1010:25SYD - SDF
2 stops28h 31mDelta
Deal found 10/6$1,512
Sat 26/719:13SDF - SYD
2 stops34h 02mMultiple Airlines
Sat 2/817:45SYD - SDF
1 stop35h 51mMultiple Airlines
Deal found 11/6$1,948
Wed 24/918:44SDF - SYD
1 stop22h 11mQantas Airways
Sun 12/1013:10SYD - SDF
1 stop19h 20mQantas Airways
Deal found 12/6$2,593
Sat 27/1213:55SDF - SYD
2 stops25h 00mAir Canada
Tue 20/111:20SYD - SDF
3 stops41h 40mAir Canada
Deal found 12/6$4,813
Sat 23/813:59SDF - SYD
2 stops39h 16mANA
Tue 2/920:55SYD - SDF
2 stops37h 05mANA
Deal found 10/6$6,454
Sat 18/1014:29SDF - SYD
2 stops26h 36mAmerican Airlines
Sat 1/1111:15SYD - SDF
2 stops23h 27mAmerican Airlines
Deal found 10/6$35,860

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 13 June 2025.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Louisville

Fly to

Sydney

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 12/9

15:30-07:00

2 stops25h 30m

Sydney Kingsford Smith

Fri 3/10

10:20-22:30

2 stops26h 10m

$1,432

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 24/9

14:59-06:35

2 stops25h 36m

Sydney Kingsford Smith

Sun 12/10

10:25-23:56

2 stops28h 31m

$1,512

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 26/7

19:13-19:15

2 stops34h 02m

Sydney Kingsford Smith

Sat 2/8

17:45-15:36

1 stop35h 51m

$1,948

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 24/9

18:44-06:55

1 stop22h 11m

Sydney Kingsford Smith

Sun 12/10

13:10-17:30

1 stop19h 20m

$2,593

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 23/8

13:59-19:15

2 stops39h 16m

Sydney Kingsford Smith

Tue 2/9

20:55-20:00

2 stops37h 05m

$6,454

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 18/10

08:45-08:20

3 stops56h 35m

Sydney Kingsford Smith

Sat 1/11

10:20-20:14

2 stops24h 54m

$6,702

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 18/10

14:29-08:05

2 stops26h 36m

Sydney Kingsford Smith

Sat 1/11

11:15-19:42

2 stops23h 27m

$35,860

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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, May is the cheapest month in which you can book a flight from Louisville to Sydney (average of $129). Flying from Louisville to Sydney in October is currently the most expensive (average of $171). 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 13 June 2025.
ANA
8.3
Very Good
882 reviews
Check prices

Food

7.7

Entertainment

7.9

Overall

8.3

Boarding

8.5

Comfort

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.3
Very Good
882 reviews
ANA
8.3
Very Good
882 reviews
Check prices

Food

7.7

Entertainment

7.9

Overall

8.3

Boarding

8.5

Comfort

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very Good
7,950 reviews
ANA
8.3
Very Good
882 reviews
Check prices

Food

7.7

Entertainment

7.9

Overall

8.3

Boarding

8.5

Comfort

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Qantas Airways
7.5
Good
854 reviews
ANA
8.3
Very Good
882 reviews
Check prices

Food

7.7

Entertainment

7.9

Overall

8.3

Boarding

8.5

Comfort

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
United Airlines
7.4
Good
8,790 reviews
ANA
8.3
Very Good
882 reviews
Check prices

Food

7.7

Entertainment

7.9

Overall

8.3

Boarding

8.5

Comfort

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
American Airlines
7.2
Good
10,000 reviews
ANA
8.3
Very Good
882 reviews
Check prices

Food

7.7

Entertainment

7.9

Overall

8.3

Boarding

8.5

Comfort

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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.

  • What are the cheapest airlines flying from Louisville to Sydney round-trip?

    According to our current data, United Airlines ($1,432), Delta ($1,512), and Qantas Airways ($2,593) offers the cheapest pricing from Louisville to Sydney. These flights start at 31% lower than the current average price 3 months from now.

  • 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, May is the cheapest month in which you can book a flight from Louisville to Sydney (average of $129). Flying from Louisville to Sydney in October is currently the most expensive (average of $171). 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 Louisville?

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

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

Top airline flying from Louisville to Sydney

Discover the top airline that operate flights from Louisville to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,380Average$2,235FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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