HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$933+ Cheap flights from Louisville (SDF) to Sydney (SYD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$933
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$1,253
From Louisville Intl to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:30 pmSDF - SYD
2 stops25h 25mUnited Airlines
Fri 10/310:20 amSYD - SDF
2 stops26h 10mUnited Airlines
Deal found 6/12$933
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/242:59 pmSDF - SYD
2 stops25h 36mDelta
Sun 10/1210:25 amSYD - SDF
2 stops28h 31mDelta
Deal found 6/10$985
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:13 pmSDF - SYD
2 stops34h 02mMultiple Airlines
Sat 8/25:45 pmSYD - SDF
1 stop35h 51mMultiple Airlines
Deal found 6/11$1,269
This Gurufare deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:44 pmSDF - SYD
1 stop22h 11mQantas Airways
Sun 10/121:10 pmSYD - SDF
1 stop19h 20mQantas Airways
Deal found 6/12$1,689
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:55 pmSDF - SYD
2 stops25h 00mAir Canada
Tue 1/2011:20 amSYD - SDF
3 stops41h 40mAir Canada
Deal found 6/11$3,135
This AranGrant deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/231:59 pmSDF - SYD
2 stops39h 16mANA
Tue 9/28:55 pmSYD - SDF
2 stops37h 05mANA
Deal found 6/10$4,204
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/182:29 pmSDF - SYD
2 stops26h 36mAmerican Airlines
Sat 11/111:15 amSYD - SDF
2 stops23h 27mAmerican Airlines
Deal found 6/10$23,360

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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 9/12

3:30 pm-7:00 am

2 stops25h 30m

Sydney Kingsford Smith

Fri 10/3

10:20 am-10:30 pm

2 stops26h 10m

$933

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

2:59 pm-6:35 am

2 stops25h 36m

Sydney Kingsford Smith

Sun 10/12

10:25 am-11:56 pm

2 stops28h 31m

$985

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 7/26

7:13 pm-7:15 pm

2 stops34h 02m

Sydney Kingsford Smith

Sat 8/2

5:45 pm-3:36 pm

1 stop35h 51m

$1,269

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

6:44 pm-6:55 am

1 stop22h 11m

Sydney Kingsford Smith

Sun 10/12

1:10 pm-5:30 pm

1 stop19h 20m

$1,689

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 8/23

1:59 pm-7:15 pm

2 stops39h 16m

Sydney Kingsford Smith

Tue 9/2

8:55 pm-8:00 pm

2 stops37h 05m

$4,204

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 10/18

8:45 am-8:20 am

3 stops56h 35m

Sydney Kingsford Smith

Sat 11/1

10:20 am-8:14 pm

2 stops24h 54m

$4,366

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 10/18

2:29 pm-8:05 am

2 stops26h 36m

Sydney Kingsford Smith

Sat 11/1

11:15 am-7:42 pm

2 stops23h 27m

$23,360

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 round-trip 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, March is the cheapest month in which you can book a flight from Louisville to Sydney (average of $1,041). Flying from Louisville to Sydney in December is currently the most expensive (average of $1,635). 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 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
ANA
8.3
Very good
882 reviews

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.9

Boarding

8.5

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

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.9

Boarding

8.5

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

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.9

Boarding

8.5

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

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.9

Boarding

8.5

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

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.9

Boarding

8.5

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

Food

7.7

Overall

8.3

Comfort

8.2

Entertainment

7.9

Boarding

8.5

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?

    Cheapflights users have booked flights from Louisville to Sydney round-trip from $933. Other airlines that can offer you cheap pricing are Delta, from $985, and Qantas Airways, from $1,689. United Airlines is currently priced 31% below the average price you’ll pay for this route.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from Louisville to Sydney (average of $1,041). Flying from Louisville to Sydney in December is currently the most expensive (average of $1,635). 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

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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.

Top 3 airlines flying from Louisville to Sydney

Discover the top 3 airlines 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$930Average$1,282FlexibilityNo cancel feeOn-time69%
DeltaCheapest$979Average$1,409FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,190Average$1,426FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.