SDF - SYD

$574 Find Cheap Flights from Louisville to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Sydney, as well as popular online travel agencies
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,233
Overall average: $1,439
United Airlines
Wed 6/10Wed 6/17
SDF - SYD • 2 stops
Cheapest one-way
$574
Delta
Sat 5/16
SDF - SYD • 2 stops
Top airlines
Cheapest • from $1,233 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Louisville and Sydney. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $733 (round-trip)
Shortest trip • 7h 31m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to Sydney (SDF-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Sydney

Wed, Jun 10 - Wed, Jun 17
United Airlines Logo
2:05 pm - 6:55 am
SDF
-
SYD
26h 50m
2 stops
United Airlines Logo
9:30 am - 8:01 pm
SYD
-
SDF
24h 31m
2 stops
$1,233United Airlines
Tue, Jun 23 - Tue, Jul 7
Delta Logo
8:11 am - 6:50 am
SDF
-
SYD
32h 39m
2 stops
Delta Logo
9:15 am - 7:13 pm
SYD
-
SDF
23h 58m
2 stops
$1,313Delta
Thu, May 21 - Fri, May 29
Delta Logo
10:39 am - 6:50 am
SDF
-
SYD
30h 11m
2 stops
Delta Logo
9:15 am - 10:36 pm
SYD
-
SDF
27h 21m
2 stops
$1,321Delta
Wed, Jun 10 - Wed, Jun 17
United Airlines Logo
3:25 pm - 6:55 am
SDF
-
SYD
25h 30m
2 stops
United Airlines Logo
9:30 am - 8:23 pm
SYD
-
SDF
24h 53m
2 stops
$1,332United Airlines
Thu, May 7 - Thu, May 14
United Airlines Logo
3:37 pm - 6:55 am
SDF
-
SYD
25h 18m
2 stops
United Airlines Logo
9:30 am - 8:17 pm
SYD
-
SDF
24h 47m
2 stops
$1,333United Airlines
Thu, Jun 25 - Tue, Jul 7
Delta Logo
7:05 am - 6:50 am
SDF
-
SYD
33h 45m
2 stops
Delta Logo
9:15 am - 7:13 pm
SYD
-
SDF
23h 58m
2 stops
$1,371Delta
Wed, Jun 24 - Tue, Jul 7
Delta Logo
7:51 pm - 6:50 am
SDF
-
SYD
44h 59m
2 stops
Delta Logo
9:15 am - 7:13 pm
SYD
-
SDF
23h 58m
2 stops
$1,389Delta
Wed, May 20 - Fri, May 29
Multiple Airlines Logo
9:21 am - 7:30 am
SDF
-
SYD
32h 09m
1 stop
Multiple Airlines Logo
5:50 pm - 7:26 pm
SYD
-
SDF
39h 36m
1 stop
$1,411Multiple Airlines
Tue, Jun 23 - Tue, Jul 7
United Airlines Logo
8:00 am - 7:00 am
SDF
-
SYD
33h 00m
3 stops
United Airlines Logo
9:30 am - 8:01 pm
SYD
-
SDF
24h 31m
2 stops
$1,413United Airlines
Wed, May 20 - Fri, May 29
Multiple Airlines Logo
9:21 am - 11:50 am
SDF
-
SYD
36h 29m
2 stops
Multiple Airlines Logo
5:50 pm - 7:26 pm
SYD
-
SDF
39h 36m
1 stop
$1,416Multiple Airlines
Booking Insights

KAYAK's insights & trends for Louisville to Sydney flights

Get data-powered insights and trends into flights from Louisville to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Louisville to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Sydney is November, where tickets cost $1,228 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $2,055 and $1,792 respectively.

Good to know

Low seasonApril
Cheapest flight$574
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Louisville to Sydney

When to book flights from Louisville to Sydney

Are your dates flexible? Find out the best times to travel from Louisville to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Sydney

  • What is the cheapest flight from Louisville to Sydney?

    In the last 3 days, the lowest price for a flight from Louisville to Sydney was $574 for a one-way ticket and $1,233 for a round-trip.

  • Do I need a passport to fly between Louisville and Sydney?

    Yes, you’ll need a passport to travel to Sydney from Louisville.

  • Which aircraft models fly most regularly from Louisville to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to Sydney?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Louisville and Sydney, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Louisville to Sydney, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to Sydney are Delta and United Airlines. With an average price for the route of $1,351 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,330 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Louisville to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Louisville with another airline. Booking your flights between Louisville and SYD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Louisville to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8320 reviews
7.2Food
7.9Comfort
8.5Crew
8.1Boarding
7.8Entertainment
Airline reviews

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

10.0 ExcellentFrancis, Mar 2026
MSP - LAX
Read more Delta reviews

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

Entertainment is ok! Boarding and seat with zone is terrible. I paid for the seats but you didn’t give me what I paid for which is exit isles.

the crew cancel the morning service due to the weather. Then the flight got deverted to Nashville . we were on the ground for over two hours the only gave us water once... no food or any snacks.... the crew should have handled better and offered something to passengers.

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

This was a Latam operated flight. Seats seemed a bit narrow in business class. Older aircraft.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

Everything you need to know for your flight from Louisville to Sydney

Information on your arrival and departure airports