SDF - SYD

$553 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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Everything you should know

Cheapest round-trip
$1,168
Typical prices: $1,150-$1,456
Delta
Tue 6/9Wed 6/17
SDF - SYD • 2 stops
Cheapest one-way
$553
Delta
Sat 5/16
SDF - SYD • 2 stops
When to travel
November
Cheapest • 16% price drop
July
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

Tue, Jun 9 - Wed, Jun 17
Delta Logo
6:36 am - 6:35 am
SDF
-
SYD
33h 59m2 stops
Delta Logo
9:15 am - 8:45 am
SYD
-
SDF
37h 30m2 stops
$1,168Delta
Mon, Feb 9 - Mon, Feb 16
Delta Logo
7:00 am - 8:30 am
SDF
-
SYD
33h 30m2 stops
Delta Logo
10:40 am - 8:28 pm
SYD
-
SDF
25h 48m2 stops
$1,169Delta
Thu, Mar 19 - Sun, Apr 5
Delta Logo
7:45 am - 7:30 am
SDF
-
SYD
32h 45m2 stops
Delta Logo
9:15 am - 10:43 pm
SYD
-
SDF
27h 28m2 stops
$1,218Delta
Thu, Mar 19 - Sun, Apr 5
Delta Logo
6:00 am - 6:05 am
SDF
-
SYD
33h 05m2 stops
Delta Logo
9:15 am - 9:16 pm
SYD
-
SDF
26h 01m2 stops
$1,219Delta
Fri, May 1 - Sat, May 9
Delta Logo
12:35 pm - 6:35 am
SDF
-
SYD
28h 00m2 stops
Delta Logo
9:15 am - 5:41 pm
SYD
-
SDF
22h 26m2 stops
$1,269Delta
Mon, Feb 9 - Thu, Feb 12
United Airlines Logo
9:15 am - 7:00 am
SDF
-
SYD
29h 45m1 stop
United Airlines Logo
11:50 am - 7:51 pm
SYD
-
SDF
24h 01m1 stop
$1,271United Airlines
Mon, Feb 9 - Thu, Feb 12
United Airlines Logo
3:30 pm - 7:00 am
SDF
-
SYD
23h 30m1 stop
United Airlines Logo
11:50 am - 7:51 pm
SYD
-
SDF
24h 01m1 stop
$1,272United Airlines
Mon, Feb 9 - Thu, Feb 12
United Airlines Logo
8:29 am - 6:20 am
SDF
-
SYD
29h 51m2 stops
United Airlines Logo
12:10 pm - 8:09 pm
SYD
-
SDF
23h 59m2 stops
$1,275United Airlines
Mon, Feb 9 - Thu, Feb 12
United Airlines Logo
8:29 am - 6:20 am
SDF
-
SYD
29h 51m2 stops
United Airlines Logo
2:00 pm - 10:13 pm
SYD
-
SDF
24h 13m2 stops
$1,276United Airlines
Mon, Feb 9 - Thu, Feb 12
United Airlines Logo
8:29 am - 6:20 am
SDF
-
SYD
29h 51m2 stops
United Airlines Logo
12:10 pm - 8:09 pm
SYD
-
SDF
23h 59m2 stops
$1,277United 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.

How much is a round-trip flight from Louisville to Sydney?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Louisville to Sydney departing in June.

What’s the cheapest day of the week to fly from Louisville to Sydney?

The average price of all round-trip flights from Louisville to Sydney clicked on KAYAK for each day over the last 12 months.

For Louisville to Sydney, Wednesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Sydney back to Louisville, the best deals are generally found on Sunday, with Saturday being the most expensive.

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 $1,142 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,772 and $1,740 respectively.

Good to know

Low seasonNovember
Cheapest flight$553
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 2% 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 $553 for a one-way ticket and $1,168 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 $1,230 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 8019 reviews
7.9Comfort
7.3Food
8.5Crew
8.1Boarding
7.9Entertainment
Airline reviews

Did not realize internet screen was hidden between seats and no info printed!!!!

6.0 GoodAnonymous, Dec 2025
BOS - MSP
Read more Delta reviews

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Sat next to a one year old. She crawled all over the place and made me laugh.

Not United Airlines' fault. It's ORL airport's fault.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

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

Information on your arrival and departure airports