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$1,110+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,110
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$1,628
Provider with most accurate pricing for Louisville Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Sydney Kingsford Smith flights.
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From Louisville Intl to Sydney Kingsford Smith
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Highest demand for flights based on searches. 15% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 9/243:30 pmSDF - SYD
2 stops49h 25mUnited Airlines
Sun 10/1210:30 amSYD - SDF
2 stops25h 03mUnited Airlines
Deal found 4/30$1,110
This Delta deal was found by Cheapflights users on 4/29. 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 stops25h 26mDelta
Deal found 4/29$1,246
This Jetabroad deal was found by Cheapflights users on 4/29. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/123:38 pmSDF - SYD
2 stops25h 22mAir New Zealand
Thu 6/199:30 amSYD - SDF
2 stops24h 09mAir New Zealand
Deal found 4/29$1,360
This Air New Zealand deal was found by Cheapflights users on 4/29. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:41 pmSDF - SYD
2 stops27h 04mMultiple Airlines
Sun 10/128:45 amSYD - SDF
3 stops28h 39mMultiple Airlines
Deal found 4/29$1,586
This StudentUniverse deal was found by Cheapflights users on 4/30. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:51 pmSDF - SYD
1 stop24h 04mQantas Airways
Sun 10/121:10 pmSYD - SDF
1 stop19h 20mQantas Airways
Deal found 4/30$1,677
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:00 amSDF - SYD
3 stops32h 35mAir Canada
Tue 11/2511:20 amSYD - SDF
2 stops24h 54mAir Canada
Deal found 4/29$2,411
This KAYAK deal was found by Cheapflights users on 4/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:30 pmSDF - SYD
3 stops48h 05mLATAM Airlines
Sun 10/1212:50 pmSYD - SDF
3 stops36h 01mLATAM Airlines
Deal found 4/29$3,422
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 9/242:37 pmSDF - SYD
2 stops26h 28mAmerican Airlines
Sun 10/1210:10 amSYD - SDF
2 stops26h 26mAmerican Airlines
Deal found 4/30$22,859

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 May 1, 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

Wed 9/24

3:30 pm-6:55 am

2 stops49h 25m

Sydney Kingsford Smith

Sun 10/12

10:30 am-8:33 pm

2 stops25h 03m

$1,110

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-8:51 pm

2 stops25h 26m

$1,246

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 6/12

3:38 pm-7:00 am

2 stops25h 22m

Sydney Kingsford Smith

Thu 6/19

9:30 am-7:39 pm

2 stops24h 09m

$1,360

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

3:41 pm-8:45 am

2 stops27h 04m

Sydney Kingsford Smith

Sun 10/12

8:45 am-10:24 pm

3 stops28h 39m

$1,586

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

4:51 pm-6:55 am

1 stop24h 04m

Sydney Kingsford Smith

Sun 10/12

1:10 pm-5:30 pm

1 stop19h 20m

$1,677

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

10:55 am-7:20 am

3 stops30h 25m

Sydney Kingsford Smith

Sun 10/12

10:20 am-2:50 pm

3 stops43h 30m

$2,644

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

7:30 pm-9:35 am

3 stops48h 05m

Sydney Kingsford Smith

Sun 10/12

12:50 pm-9:51 am

3 stops36h 01m

$3,422

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

2:37 pm-7:05 am

2 stops26h 28m

Sydney Kingsford Smith

Sun 10/12

10:10 am-9:36 pm

2 stops26h 26m

$22,859

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Louisville to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Sydney in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Sydney flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Louisville-Sydney flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Louisville-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Sydney flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $1,043). Flying from Louisville to Sydney in December is currently the most expensive (average of $1,643). 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 May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air New Zealand
8.0
Very good
472 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Qantas Airways
7.5
Good
829 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,767 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $1,110. Other airlines that can offer you cheap pricing are Delta, from $1,246, and Air New Zealand, from $1,360. United Airlines is currently priced 24% 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 $1,043). Flying from Louisville to Sydney in December is currently the most expensive (average of $1,643). 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
Coogee
Manly

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$930Average$1,270FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,104Average$1,452FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,190Average$1,439FlexibilityNo cancel feeOn-time71%

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