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$507+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Mar 26 — Apr 21
Wed 3/26
Wed 4/2
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 March 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,183
(United Airlines)

One-way from

$507
(United Airlines)

Popular in

July

Cheapest in

April

Average price

$1,218
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 ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 21, 2025.

This United deal was found by Cheapflights users on 3/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1511:10 amSDF - SYD
2 stops29h 55mUnited Airlines
Fri 11/2111:50 amSYD - SDF
1 stop23h 45mUnited Airlines
Deal found 3/20$970
This Delta deal was found by Cheapflights users on 3/19. 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 stops25h 47mDelta
Deal found 3/19$1,493
This oojo deal was found by Cheapflights users on 3/20. 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.
Tue 4/84:42 pmSDF - PER
2 stops37h 58mQatar Airways
Sat 5/2410:45 pmPER - SDF
2 stops53h 21mQatar Airways
Deal found 3/20$1,680
This Gurufare deal was found by Cheapflights users on 3/20. 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 9/244:51 pmSDF - SYD
1 stop24h 04mQantas Airways
Sun 10/121:10 pmSYD - SDF
1 stop19h 20mQantas Airways
Deal found 3/20$1,687
This United deal was found by Cheapflights users on 3/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/183:25 pmSDF - MEL
2 stops26h 50mUnited Airlines
Fri 4/2510:55 amMEL - SDF
2 stops25h 35mUnited Airlines
Deal found 3/20$1,695
This Air Canada deal was found by Cheapflights users on 3/20. 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.
Sat 11/159:00 amSDF - SYD
3 stops32h 35mAir Canada
Fri 11/2111:20 amSYD - SDF
2 stops24h 54mAir Canada
Deal found 3/20$1,911
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 5/118:18 pmSDF - SYD
1 stop20h 37mMultiple Airlines
Sat 5/178:20 pmSYD - SDF
2 stops56h 36mMultiple Airlines
Deal found 3/20$1,939
This Gurufare deal was found by Cheapflights users on 3/20. 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 3/243:35 pmSDF - SYD
2 stops26h 10mAir New Zealand
Wed 3/267:15 pmSYD - SDF
2 stops41h 32mAir New Zealand
Deal found 3/20$2,118
This Gurufare deal was found by Cheapflights users on 3/20. 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 5/13:27 pmSDF - MEL
2 stops29h 23mAir New Zealand
Tue 5/612:05 pmMEL - SDF
2 stops23h 35mAir New Zealand
Deal found 3/20$2,127
This Gurufare deal was found by Cheapflights users on 3/20. 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 4/181:44 pmSDF - MEL
1 stop25h 16mQantas Airways
Fri 4/253:05 pmMEL - SDF
1 stop21h 00mQantas Airways
Deal found 3/20$2,236
This Fareboom deal was found by Cheapflights users on 3/20. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2410:47 amSDF - PER
2 stops34h 48mCathay Pacific
Wed 4/3012:10 amPER - SDF
2 stops31h 35mCathay Pacific
Deal found 3/20$2,281
This Mytrip deal was found by Cheapflights users on 3/20. 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.
Mon 3/2410:47 amSDF - PER
2 stops43h 58mMultiple Airlines
Thu 5/18:55 amPER - SDF
3 stops47h 00mMultiple Airlines
Deal found 3/20$2,551

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 March 21, 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

Sun 5/11

2:00 pm-7:00 am

2 stops27h 00m

Sydney Kingsford Smith

Sat 5/17

10:20 am-9:40 pm

2 stops25h 20m

$1,183

LouisvillePerth

SDF - PER

SDFPER

Louisville Intl

Tue 4/8

4:42 pm-6:40 pm

2 stops37h 58m

Perth

Sat 5/24

10:45 pm-4:06 pm

2 stops53h 21m

$1,680

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 4/18

3:25 pm-8:15 am

2 stops26h 50m

Melbourne

Fri 4/25

10:55 am-10:30 pm

2 stops25h 35m

$1,695

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 5/11

8:18 pm-6:55 am

1 stop20h 37m

Sydney Kingsford Smith

Sat 5/17

8:20 pm-2:56 pm

2 stops56h 36m

$1,939

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Thu 5/1

3:27 pm-10:50 am

2 stops29h 23m

Melbourne

Tue 5/6

12:05 pm-9:40 pm

2 stops23h 35m

$2,127

LouisvilleMelbourne

SDF - MEL

SDFMEL

Louisville Intl

Fri 4/18

1:44 pm-5:00 am

1 stop25h 16m

Melbourne

Fri 4/25

3:05 pm-10:05 pm

1 stop21h 00m

$2,236

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 5/11

1:58 pm-6:55 am

1 stop26h 57m

Sydney Kingsford Smith

Sat 5/17

10:25 am-5:52 pm

1 stop21h 27m

$2,435

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sun 5/11

6:07 pm-7:20 am

3 stops47h 13m

Sydney Kingsford Smith

Sat 5/17

9:20 am-10:12 pm

2 stops26h 52m

$2,610

LouisvillePerth

SDF - PER

SDFPER

Louisville Intl

Tue 4/8

2:32 pm-11:15 am

3 stops32h 43m

Perth

Sat 5/24

11:55 pm-5:52 pm

2 stops29h 57m

$2,795

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-9:39 pm

2 stops29h 39m

$3,402

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 17 results
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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, March is the cheapest month in which you can book a flight from Louisville to Australia (average of $1,043). 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 March 21, 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 March 21, 2025.
To help decide which airline to fly from Louisville to Australia, see what other customers have to say about Delta, Air New Zealand and LATAM Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,895 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air New Zealand
7.9
Good
453 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,750 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Qatar Airways
7.4
Good
3,538 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Qantas Airways
7.4
Good
812 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 cheapest airlines to fly from Louisville to Australia one-way?

    $507 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and Qantas Airways, with prices starting from $864 and $996, respectively.

  • 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 $1,043). 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 March 21, 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$1,669FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,380Average$1,720FlexibilityNo cancel feeOn-time78%
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