Prices were available within the past 7 days and start at AU$895 for one-way flights and AU$1,697 for return, for the period specified. Prices and availability are subject to change.
Find the cheapest month to fly from Louisville (SDF) to Sydney (SYD)
August is typically the cheapest month to flyAugust is typically the cheapest month to fly
From AU$1,710 - AU$2,802 per traveller.
Frequently Asked Questions
How much does a flight from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) cost?
You can find one-way and return flights from SDF to SYD with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SDF to SYD ticket fares go up or down.
What is the cheapest month to fly from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The cheapest months to fly from SDF to SYD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Enter SDF to SYD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Delta is one of the cheapest airlines offering connecting return flights from Louisville Intl. (SDF) to Kingsford Smith Intl. (SYD), with prices starting from around AU$1685 for flights that can be booked for departure within the next year. These flights typically include a layover in Hartsfield-Jackson Atlanta Intl. (ATL). Prices are per adult, economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
To find a cheap flight from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are approximately 36 connecting flights per day from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.). Some common connection points include O'Hare Intl. (ORD), Dallas-Fort Worth Intl. (DFW), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The earliest flight from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) typically departs around 5:00 AM local time. This service is operated by American Airlines and Qatar Airways. This is a seasonal service, active in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
You'll generally find the most flights from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) on a Friday, with around 36 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, United, and Delta. Looking at the week, Fridays have notably more flight options compared to other days, so if flexibility is key, aiming for a Friday departure could be beneficial.
What are the most popular departure times for flights from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The most popular departure times for flights from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) are in the morning, from 9am to 12pm. Many major carriers, including United, American Airlines and Delta, offer flights during this window. Many travellers prefer this time as it allows for a full day of travel and an evening arrival at your destination.
How long does it take to fly from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are no nonstop flights from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.). The distance between these two airports is approximately 14,959 kilometres. Flights with one stop typically take around 23 hours, while flights with two or more stops usually take a bit longer, averaging about 24 hours and 30 minutes. Keep in mind that actual travel times can vary depending on your specific routing, layover durations, and factors like wind patterns.
Can you fly business or first class from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Yes, you can fly business class or first class between SDF and SYD. Airlines that offer business class service on this route include:
* Delta * United * American Airlines
First class cabins are available on United and American Airlines.
How do I earn miles on a Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight with Expedia?
It's easy to earn miles on a Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sydney, NSW (SYD) from Louisville, KY (SDF)?
If you're planning to travel to Sydney from Louisville Intl. (SDF), you can fly directly into Kingsford Smith Intl. (SYD). Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), O'Hare Intl. (ORD), or George Bush Intercontinental (IAH) before reaching Sydney. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) at the last minute?
Typically, booking a last minute flight from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package?
Securing a Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
If you booked your Louisville, KY (SDF-Louisville Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport
Louisville International Airport
Destination airport
Sydney Airport
Distance
14,957 km away
Airlines serving
Qantas Airways, All Nippon Airways, Qatar Airways, Air New Zealand, Air Canada, Japan Airlines, United, Delta, American Airlines, Korean Air