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$797+ Cheap flights from Louisville (SDF) to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Louisville to Australia

Keep the following information in mind while searching for Louisville to Australia flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,461
(United Airlines)

One-way from

$797
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$1,110
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 Australia
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One-way flight from Louisville Intl to Australia
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Highest demand for flights based on searches. 3% potential increase in price ($51 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 April 2025
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Find flight deals from Louisville to Australia

Cheapest flights from Louisville to Australia
Explore the most affordable flight options available from Louisville to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This United Airlines deal was found by Cheapflights users on 4/1. 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.
Mon 6/2311:10 amSDF - SYD
2 stops29h 50mUnited Airlines
Tue 7/1510:20 amSYD - SDF
2 stops25h 31mUnited Airlines
Deal found 4/1$1,461
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/163:51 pmSDF - MEL
2 stops35h 54mMultiple Airlines
Fri 5/237:00 amMEL - SDF
3 stops45h 40mMultiple Airlines
Deal found 4/1$1,465
This Delta deal was found by Cheapflights users on 4/1. 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.
Sat 12/271:30 pmSDF - SYD
2 stops27h 05mDelta
Tue 1/2011:05 amSYD - SDF
2 stops38h 29mDelta
Deal found 4/1$1,520
This Gurufare deal was found by Cheapflights users on 4/1. 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 9/248:31 pmSDF - SYD
1 stop20h 24mQantas Airways
Sun 10/121:10 pmSYD - SDF
1 stop19h 20mQantas Airways
Deal found 4/1$1,685
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Sat 5/173:27 pmSDF - MEL
2 stops26h 48mUnited Airlines
Sat 5/2410:55 amMEL - SDF
2 stops36h 38mUnited Airlines
Deal found 4/2$1,694
This Gurufare deal was found by Cheapflights users on 4/1. 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.
Thu 5/19:25 amSDF - MEL
2 stops35h 25mAir New Zealand
Tue 5/612:05 pmMEL - SDF
2 stops23h 35mAir New Zealand
Deal found 4/1$2,125
This Qantas Airways deal was found by Cheapflights users on 4/1. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:20 pmSDF - SYD
2 stops25h 50mMultiple Airlines
Tue 1/208:45 amSYD - SDF
3 stops28h 53mMultiple Airlines
Deal found 4/1$2,214
This Gurufare deal was found by Cheapflights users on 4/1. 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.
Fri 5/161:58 pmSDF - MEL
1 stop25h 02mQantas Airways
Fri 5/233:05 pmMEL - SDF
1 stop20h 34mQantas Airways
Deal found 4/1$2,235
This Air Canada deal was found by Cheapflights users on 4/1. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2410:55 amSDF - SYD
3 stops30h 25mAir Canada
Sun 10/1210:20 amSYD - SDF
2 stops26h 49mAir Canada
Deal found 4/1$2,287
This oojo deal was found by Cheapflights users on 4/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/44:42 pmSDF - MEL
2 stops34h 08mQatar Airways
Sun 4/610:45 pmMEL - SDF
2 stops63h 00mQatar Airways
Deal found 4/2$2,687
This oojo deal was found by Cheapflights users on 4/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/35:00 pmSDF - SYD
2 stops34h 10mQatar Airways
Sat 4/59:45 pmSYD - SDF
2 stops60h 59mQatar Airways
Deal found 4/1$2,829
This KAYAK deal was found by Cheapflights users on 4/1. 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.
Thu 5/18:24 pmSDF - AVV
2 stops29h 41mQantas Airways
Tue 5/66:00 amAVV - SDF
2 stops25h 50mQantas Airways
Deal found 4/1$2,855

Cheapflights Fare Finder

Customize your flight search to find flights from Louisville to Australia 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 April 2, 2025.
Use the filters below to find and compare flights from Louisville to Australia that are best for you.

Fly from

Louisville

Fly to

Australia

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 6/23

11:10 am-7:00 am

2 stops29h 50m

Sydney Kingsford Smith

Tue 7/15

10:20 am-9:51 pm

2 stops25h 31m

$1,461

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 5/16

3:51 pm-5:45 pm

2 stops35h 54m

Melbourne

Fri 5/23

7:00 am-2:40 pm

3 stops45h 40m

$1,465

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/3

7:05 am-6:35 am

2 stops33h 30m

Sydney Kingsford Smith

Sat 6/28

9:25 am-11:02 pm

2 stops27h 37m

$1,520

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

8:31 pm-6:55 am

1 stop20h 24m

Sydney Kingsford Smith

Sun 10/12

1:10 pm-5:30 pm

1 stop19h 20m

$1,685

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Sat 5/17

3:27 pm-8:15 am

2 stops26h 48m

Melbourne

Sat 5/24

10:55 am-9:33 am

2 stops36h 38m

$1,694

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Thu 5/1

9:25 am-10:50 am

2 stops35h 25m

Melbourne

Tue 5/6

12:05 pm-9:40 pm

2 stops23h 35m

$2,125

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 5/16

1:58 pm-5:00 am

1 stop25h 02m

Melbourne

Fri 5/23

3:05 pm-9:39 pm

1 stop20h 34m

$2,235

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-10:09 pm

2 stops26h 49m

$2,287

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/3

8:18 pm-6:55 am

1 stop20h 37m

Sydney Kingsford Smith

Sat 6/28

8:20 pm-2:55 pm

2 stops56h 35m

$2,403

LouisvilleMelbourne

SDF - AVV

SDFAVV

Louisville Intl

Thu 5/1

8:24 pm-4:05 pm

2 stops29h 41m

Melbourne Avalon

Tue 5/6

6:00 am-5:50 pm

2 stops25h 50m

$2,855

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 15 results
1
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Best time to book a flight from Louisville to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

What is the cheapest month to book a flight from Louisville to Australia?

Currently, February is the cheapest month in which you can book a flight from Louisville to Australia (average of $1,046). Flying from Louisville to Australia 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.

What is the cheapest time of day to fly from SDF to AU?

Find hourly flight availability from Louisville to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Australia as you normally would.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia 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 Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, 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 Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated April 2, 2025.
To help decide which airline to fly from Louisville to Australia, see what other customers have to say about ANA, Delta and Air New Zealand. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very good
830 reviews

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
ANA
8.3
Very good
830 reviews
ANA
8.3
Very good
830 reviews

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Delta
8.0
Very good
7,897 reviews
ANA
8.3
Very good
830 reviews

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Air New Zealand
7.9
Good
458 reviews
ANA
8.3
Very good
830 reviews

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Qantas Airways
7.5
Good
813 reviews
ANA
8.3
Very good
830 reviews

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
United Airlines
7.4
Good
8,616 reviews
ANA
8.3
Very good
830 reviews

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Food

7.7

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Louisville to Australia?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to Australia. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

  • What are the most popular routes from Louisville to Australia?

    Most travelers choose Louisville Intl - Sydney Kingsford Smith, Louisville Intl - Melbourne or Louisville Intl - Melbourne Avalon when deciding on the best route from Louisville to Australia.

  • Can I find deals for flights from Louisville to Australia that include hotel bookings?

    Yes. In addition to deals on Louisville to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Australia.

  • Can I find deals for business class flights from Louisville to Australia?

    Yes. Cheapflights offers flight deals from Louisville to Australia 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 Australia?

    Currently, February is the cheapest month in which you can book a flight from Louisville to Australia (average of $1,046). Flying from Louisville to Australia 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

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Top 5 airlines flying from Louisville to Australia

Discover the top 5 airlines that operate flights from Louisville to Australia. 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$930Average$1,417FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,104Average$1,432FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$1,172Average$2,009FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,190Average$1,770FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,380Average$1,686FlexibilityNo cancel feeOn-time78%

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