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$933+ Cheap flights from Louisville (SDF) to Australia

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$933
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$1,253
From Louisville Intl to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 9/193:30 pmSDF - SYD
2 stops25h 25mUnited Airlines
Fri 10/310:20 amSYD - SDF
2 stops26h 10mUnited Airlines
Deal found 6/12$933
This Delta deal was found by Cheapflights users on 6/10. 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 stops28h 31mDelta
Deal found 6/10$985
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:13 pmSDF - SYD
2 stops34h 02mMultiple Airlines
Sat 8/25:45 pmSYD - SDF
1 stop35h 51mMultiple Airlines
Deal found 6/11$1,269
This Gurufare deal was found by Cheapflights users on 6/12. 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 9/246:44 pmSDF - SYD
1 stop22h 11mQantas Airways
Sun 10/121:10 pmSYD - SDF
1 stop19h 20mQantas Airways
Deal found 6/12$1,689
This United Airlines deal was found by Cheapflights users on 6/9. 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 6/232:05 pmSDF - MEL
2 stops27h 25mUnited Airlines
Fri 7/49:30 amMEL - SDF
2 stops24h 56mUnited Airlines
Deal found 6/9$2,154
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/144:17 pmSDF - MEL
1 stop24h 28mMultiple Airlines
Mon 6/161:00 pmMEL - SDF
2 stops43h 35mMultiple Airlines
Deal found 6/10$2,226
This Gurufare deal was found by Cheapflights users on 6/9. 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.
Mon 6/238:30 pmSDF - MEL
1 stop42h 30mQantas Airways
Fri 7/43:05 pmMEL - SDF
1 stop39h 11mQantas Airways
Deal found 6/9$2,495
This Gurufare deal was found by Cheapflights users on 6/9. 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.
Mon 6/238:30 pmSDF - AVV
2 stops36h 20mQantas Airways
Fri 7/48:55 pmAVV - SDF
2 stops33h 21mQantas Airways
Deal found 6/9$2,503
This Gurufare deal was found by Cheapflights users on 6/10. 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.
Sat 6/143:38 pmSDF - MEL
2 stops29h 12mAir New Zealand
Mon 6/166:55 pmMEL - SDF
2 stops40h 57mAir New Zealand
Deal found 6/10$2,676
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:55 pmSDF - SYD
2 stops25h 00mAir Canada
Tue 1/2011:20 amSYD - SDF
3 stops41h 40mAir Canada
Deal found 6/11$3,135
This AranGrant deal was found by Cheapflights users on 6/10. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/231:59 pmSDF - SYD
2 stops39h 16mANA
Tue 9/28:55 pmSYD - SDF
2 stops37h 05mANA
Deal found 6/10$4,204
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 10/182:29 pmSDF - SYD
2 stops26h 36mAmerican Airlines
Sat 11/111:15 amSYD - SDF
2 stops23h 27mAmerican Airlines
Deal found 6/10$23,360

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 June 12, 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

Fri 9/12

3:30 pm-7:00 am

2 stops25h 30m

Sydney Kingsford Smith

Fri 10/3

10:20 am-10:30 pm

2 stops26h 10m

$933

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-11:56 pm

2 stops28h 31m

$985

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 7/26

7:13 pm-7:15 pm

2 stops34h 02m

Sydney Kingsford Smith

Sat 8/2

5:45 pm-3:36 pm

1 stop35h 51m

$1,269

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 9/24

6:44 pm-6:55 am

1 stop22h 11m

Sydney Kingsford Smith

Sun 10/12

1:10 pm-5:30 pm

1 stop19h 20m

$1,689

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Mon 6/23

2:05 pm-7:30 am

2 stops27h 25m

Melbourne

Fri 7/4

9:30 am-8:26 pm

2 stops24h 56m

$2,154

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Mon 6/23

8:30 pm-5:00 am

1 stop42h 30m

Melbourne

Fri 7/4

3:05 pm-4:16 pm

1 stop39h 11m

$2,495

LouisvilleMelbourne

SDF - AVV

SDFAVV

Louisville Intl

Mon 6/23

8:30 pm-10:50 pm

2 stops36h 20m

Melbourne Avalon

Fri 7/4

8:55 pm-4:16 pm

2 stops33h 21m

$2,503

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Mon 6/23

4:45 pm-10:35 am

3 stops27h 50m

Melbourne

Fri 7/4

6:45 am-4:01 pm

2 stops23h 16m

$3,439

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 8/23

1:59 pm-7:15 pm

2 stops39h 16m

Sydney Kingsford Smith

Tue 9/2

8:55 pm-8:00 pm

2 stops37h 05m

$4,204

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 10/18

8:45 am-8:20 am

3 stops56h 35m

Sydney Kingsford Smith

Sat 11/1

10:20 am-8:14 pm

2 stops24h 54m

$4,366

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 11 results
1
2

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, March is the cheapest month in which you can book a flight from Louisville to Australia (average of $1,041). Flying from Louisville to Australia in December is currently the most expensive (average of $1,635). 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 June 12, 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 June 12, 2025.
To help decide which airline to fly from Louisville to Australia, see what other customers have to say about ANA, Delta and Qantas Airways. 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
882 reviews

Overall

8.3

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.3
Very good
882 reviews
ANA
8.3
Very good
882 reviews

Overall

8.3

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very good
7,946 reviews
ANA
8.3
Very good
882 reviews

Overall

8.3

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Qantas Airways
7.5
Good
854 reviews
ANA
8.3
Very good
882 reviews

Overall

8.3

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
United Airlines
7.4
Good
8,790 reviews
ANA
8.3
Very good
882 reviews

Overall

8.3

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
American Airlines
7.2
Good
10,000 reviews
ANA
8.3
Very good
882 reviews

Overall

8.3

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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, March is the cheapest month in which you can book a flight from Louisville to Australia (average of $1,041). Flying from Louisville to Australia in December is currently the most expensive (average of $1,635). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$930Average$1,413FlexibilityNo cancel feeOn-time69%
DeltaCheapest$979Average$1,409FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$1,172Average$1,875FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,190Average$1,426FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,380Average$1,686FlexibilityNo cancel feeOn-time78%

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