$661+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF ā SYD
Sep 2 ā Sep 91
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Louisville to Australia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click āFind dealsā2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each providerās pricing and select the best option for you! Book through your favorite providerās website for a seamless experience.Cheap flight deals from Louisville to Australia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Louisville to AustraliaExplore 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 August 3, 2026.
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 August 3, 2026.
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/193:35 pm
SDF
- SYD
2 stops25h 20m
United Airlines
Wed 8/269:30 am
SYD
- SDF
2 stops26h 45m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,192
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/23:41 pm
SDF
- SYD
2 stops25h 19m
United Airlines
Mon 8/109:30 am
SYD
- SDF
2 stops28h 29m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,241
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/297:10 am
SDF
- MEL
2 stops35h 05m
United Airlines
Sat 9/510:55 am
MEL
- SDF
2 stops25h 20m
United Airlines
Deal found 8/1![United Airlines logo]()
$1,266
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/23:41 pm
SDF
- SYD
2 stops25h 19m
United Airlines
Thu 8/139:30 am
SYD
- SDF
2 stops24h 29m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,291
This Delta deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/53:25 pm
SDF
- SYD
2 stops25h 25m
Delta
Thu 8/139:15 am
SYD
- SDF
2 stops23h 56m
Delta
Deal found 8/2![Delta logo]()
$1,292
This oojo deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 9/144:19 pm
SDF
- SYD
1 stop24h 36m
Qantas Airways
Mon 9/2112:00 pm
SYD
- SDF
1 stop23h 43m
Qantas Airways
Deal found 7/30![Qantas Airways logo]()
$1,293
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/133:35 pm
SDF
- MEL
2 stops26h 40m
United Airlines
Sat 9/196:00 pm
MEL
- SDF
3 stops58h 29m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,296
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/38:00 am
SDF
- SYD
2 stops32h 55m
United Airlines
Thu 8/1310:20 am
SYD
- SDF
2 stops42h 09m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,304
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 12/13:50 pm
SDF
- SYD
1 stop23h 10m
United Airlines
Tue 12/89:20 am
SYD
- SDF
1 stop20h 13m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,307
This Qantas Airways deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/37:50 pm
SDF
- SYD
1 stop21h 05m
Qantas Airways
Wed 8/1212:00 pm
SYD
- SDF
1 stop24h 17m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$1,308
This Delta deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 12/112:39 pm
SDF
- SYD
2 stops27h 51m
Delta
Tue 12/810:40 am
SYD
- SDF
2 stops29h 25m
Delta
Deal found 7/31![Delta logo]()
$1,311
This oojo deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/197:03 pm
SDF
- SYD
1 stop21h 52m
Qantas Airways
Wed 8/2612:00 pm
SYD
- SDF
1 stop24h 17m
Qantas Airways
Deal found 7/29![Qantas Airways logo]()
$1,332
Best flights from Louisville to AustraliaDiscover carefully curated flight deals from Louisville to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
Discover carefully curated flight deals from Louisville to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/297:10 am
SDF
- MEL
2 stops35h 05m
United Airlines
Sat 9/510:55 am
MEL
- SDF
2 stops25h 20m
United Airlines
Deal found 8/1![United Airlines logo]()
$1,266
This Qantas Airways deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 1/2710:44 am
SDF
- SYD
3 stops27h 41m
Multiple Airlines
Sat 2/1310:20 am
SYD
- SDF
3 stops25h 23m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$1,470
This Priceline deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Priceline is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 11/196:54 pm
SDF
- MEL
2 stops28h 01m
Qantas Airways
Sat 11/2812:00 pm
MEL
- SDF
1 stop22h 13m
Qantas Airways
Deal found 7/30![Qantas Airways logo]()
$1,619
This Qatar Airways deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qatar Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 10/197:27 pm
SDF
- PER
2 stops35h 08m
Qatar Airways
Fri 10/2310:45 pm
PER
- SDF
2 stops36h 46m
Qatar Airways
Deal found 7/31![Qatar Airways logo]()
$2,178
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/301:50 pm
SDF
- MEL
2 stops28h 25m
United Airlines
Sun 9/610:55 am
MEL
- SDF
2 stops25h 20m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,266
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/133:25 pm
SDF
- MEL
2 stops26h 50m
United Airlines
Sun 9/2010:55 am
MEL
- SDF
2 stops25h 34m
United Airlines
Deal found 7/30![United Airlines logo]()
$1,266
This Qantas Airways deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/134:20 pm
SDF
- MEL
2 stops24h 25m
Multiple Airlines
Sun 9/206:10 pm
MEL
- SDF
3 stops29h 33m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,548
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 12/13:50 pm
SDF
- SYD
1 stop23h 10m
United Airlines
Tue 12/89:20 am
SYD
- SDF
1 stop20h 13m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,307
This oojo deal was found by Cheapflights users on 8/3. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/17:03 pm
SDF
- PER
2 stops33h 57m
Qantas Airways
Mon 9/79:05 am
PER
- SDF
2 stops45h 13m
Qantas Airways
Deal found 8/3![Qantas Airways logo]()
$1,752
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 1/277:05 am
SDF
- SYD
1 stop31h 55m
United Airlines
Sat 2/139:20 am
SYD
- SDF
1 stop26h 15m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,357
This Cathay Pacific deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cathay Pacific is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/2910:23 am
SDF
- MEL
3 stops42h 32m
Multiple Airlines
Sat 9/57:25 am
MEL
- SDF
2 stops47h 58m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$1,806
This oojo deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 1/196:32 pm
SDF
- AVV
2 stops29h 18m
Qantas Airways
Tue 2/210:20 am
AVV
- SDF
2 stops23h 13m
Qantas Airways
Deal found 7/30![Qantas Airways logo]()
$1,809
This Qantas Airways deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 1/1910:44 am
SDF
- MEL
1 stop26h 16m
Multiple Airlines
Tue 2/211:00 am
MEL
- SDF
2 stops22h 33m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$1,813
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 11/198:00 am
SDF
- MEL
2 stops34h 30m
United Airlines
Sat 11/288:30 am
MEL
- SDF
2 stops44h 53m
United Airlines
Deal found 7/30![United Airlines logo]()
$1,500
This oojo deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 1/1910:44 am
SDF
- MEL
1 stop26h 16m
Qantas Airways
Tue 2/212:00 pm
MEL
- SDF
1 stop21h 33m
Qantas Airways
Deal found 7/31![Qantas Airways logo]()
$1,849
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 12/303:30 pm
SDF
- SYD
2 stops25h 50m
United Airlines
Wed 1/131:20 pm
SYD
- SDF
2 stops22h 54m
United Airlines
Deal found 7/31![United Airlines logo]()
$1,508
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 11/208:00 am
SDF
- SYD
2 stops33h 05m
United Airlines
Mon 11/3011:20 am
SYD
- SDF
2 stops50h 37m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,508
This Qantas Airways deal was found by Cheapflights users on 8/3. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/14:01 pm
SDF
- PER
3 stops33h 34m
Multiple Airlines
Mon 9/711:45 pm
PER
- SDF
3 stops30h 33m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$2,171
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 10/299:10 am
SDF
- SYD
1 stop30h 50m
United Airlines
Mon 11/29:20 am
SYD
- SDF
1 stop27h 13m
United Airlines
Deal found 8/1![United Airlines logo]()
$1,515
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 11/149:10 am
SDF
- MEL
2 stops33h 20m
United Airlines
Wed 11/1812:45 pm
MEL
- SDF
2 stops24h 07m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,524
This oojo deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/137:35 pm
SDF
- AVV
2 stops30h 30m
Qantas Airways
Sat 9/194:40 pm
AVV
- SDF
2 stops38h 39m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$3,423
This oojo deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/307:30 pm
SDF
- AVV
2 stops28h 40m
Qantas Airways
Sun 9/66:00 am
AVV
- SDF
2 stops25h 23m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$3,600
This oojo deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/297:00 pm
SDF
- AVV
2 stops29h 10m
Qantas Airways
Sat 9/54:40 pm
AVV
- SDF
2 stops38h 43m
Qantas Airways
Deal found 8/1![Qantas Airways logo]()
$4,116
Last-minute flights from Louisville to AustraliaDiscover last-minute flight deals from Louisville to Australia. Data last updated August 3, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Australia. Data last updated August 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/23:41 pm
SDF
- SYD
2 stops25h 19m
United Airlines
Tue 8/119:30 am
SYD
- SDF
2 stops26h 45m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,241
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/23:41 pm
SDF
- SYD
2 stops25h 19m
United Airlines
Thu 8/139:30 am
SYD
- SDF
2 stops24h 29m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,291
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/38:00 am
SDF
- SYD
2 stops32h 55m
United Airlines
Thu 8/1310:20 am
SYD
- SDF
2 stops42h 09m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,304
This Qantas Airways deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/37:50 pm
SDF
- SYD
1 stop21h 05m
Qantas Airways
Wed 8/1212:00 pm
SYD
- SDF
1 stop24h 17m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$1,308
This oojo deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/37:50 pm
SDF
- SYD
1 stop21h 05m
Qantas Airways
Mon 8/1012:00 pm
SYD
- SDF
1 stop19h 23m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$1,346
This Qantas Airways deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/37:50 pm
SDF
- SYD
1 stop21h 05m
Qantas Airways
Thu 8/1312:00 pm
SYD
- SDF
1 stop19h 23m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$1,358
This Delta deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Delta is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/53:25 pm
SDF
- SYD
2 stops25h 25m
Delta
Thu 8/139:15 am
SYD
- SDF
2 stops23h 56m
Delta
Deal found 8/2![Delta logo]()
$1,292
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/68:00 am
SDF
- SYD
2 stops32h 55m
United Airlines
Thu 8/1310:20 am
SYD
- SDF
2 stops42h 09m
United Airlines
Deal found 8/2![United Airlines logo]()
$1,354
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/193:35 pm
SDF
- SYD
2 stops25h 20m
United Airlines
Wed 8/269:30 am
SYD
- SDF
2 stops26h 45m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,192
This oojo deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/197:03 pm
SDF
- SYD
1 stop21h 52m
Qantas Airways
Wed 8/2612:00 pm
SYD
- SDF
1 stop24h 17m
Qantas Airways
Deal found 7/29![Qantas Airways logo]()
$1,332
This Qantas Airways deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/197:03 pm
SDF
- SYD
1 stop21h 52m
Multiple Airlines
Wed 8/2610:30 am
SYD
- SDF
2 stops25h 47m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,394
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/297:10 am
SDF
- MEL
2 stops35h 05m
United Airlines
Sat 9/510:55 am
MEL
- SDF
2 stops25h 20m
United Airlines
Deal found 8/1![United Airlines logo]()
$1,266
One-way flights from Louisville to AustraliaSearch for one-way flight options from Louisville to Australia. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
Search for one-way flight options from Louisville to Australia. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 11/173:24 pm
SDF
- MEL
2 stops27h 06m
United Airlines
Deal found 7/30![United Airlines logo]()
$661
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/153:35 pm
SDF
- SYD
2 stops49h 25m
United Airlines
Deal found 7/30![United Airlines logo]()
$673
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 11/137:59 pm
SDF
- SYD
3 stops56h 16m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$730
This oojo deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/154:01 pm
SDF
- SYD
1 stop24h 54m
Qantas Airways
Deal found 7/30![Qantas Airways logo]()
$816
This oojo deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/235:59 pm
SDF
- SYD
1 stop22h 56m
Qantas Airways
Deal found 8/2![Qantas Airways logo]()
$835
This oojo deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/265:59 pm
SDF
- SYD
1 stop22h 56m
Qantas Airways
Deal found 7/29![Qantas Airways logo]()
$893
This Qantas Airways deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/154:01 pm
SDF
- SYD
3 stops28h 29m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$904
This Qantas Airways deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Qantas Airways is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/264:19 pm
SDF
- SYD
3 stops27h 26m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$946
This oojo deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure oojo is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 11/171:22 pm
SDF
- MEL
1 stop23h 38m
Qantas Airways
Deal found 7/30![Qantas Airways logo]()
$965
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 12/2912:41 pm
SDF
- SYD
3 stops50h 39m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$1,033
This Cathay Pacific deal was found by Cheapflights users on 8/2. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Cathay Pacific is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/2310:29 am
SDF
- SYD
3 stops43h 11m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$1,249
This American Airlines deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure American Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 12/291:46 pm
SDF
- SYD
1 stop25h 09m
American Airlines
Deal found 8/1![American Airlines logo]()
$1,344
Find flight deals from Louisville to Australia
Keep the following information in mind while searching for Louisville to Australia flight deals. Data was last updated August 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,192 (United Airlines) |
One-way from | $661 (United Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $1,191 |
Cheapflights Fare Finder
Ā
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 August 3, 2026.
Use the filters below to find and compare flights from Louisville to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Sat 8/29
7:10 am-8:15 am
2 stops35h 05m
Melbourne
Sat 9/5
10:55 am-10:15 pm
2 stops25h 20m
$1,266
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Sun 8/30
1:50 pm-8:15 am
2 stops28h 25m
Melbourne
Sun 9/6
10:55 am-10:15 pm
2 stops25h 20m
$1,266
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Sun 9/13
3:25 pm-8:15 am
2 stops26h 50m
Melbourne
Sun 9/20
10:55 am-10:29 pm
2 stops25h 34m
$1,266
Quickest round-trip
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Tue 12/1
3:50 pm-7:00 am
1 stop23h 10m
Sydney Kingsford Smith
Tue 12/8
9:20 am-1:33 pm
1 stop20h 13m
$1,307
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Wed 1/27
7:05 am-7:00 am
1 stop31h 55m
Sydney Kingsford Smith
Sat 2/13
9:20 am-7:35 pm
1 stop26h 15m
$1,357
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Wed 1/27
10:44 am-6:25 am
3 stops27h 41m
Sydney Kingsford Smith
Sat 2/13
10:20 am-7:43 pm
3 stops25h 23m
$1,470
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Thu 11/19
8:00 am-10:30 am
2 stops34h 30m
Melbourne
Sat 11/28
8:30 am-1:23 pm
2 stops44h 53m
$1,500
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Wed 12/30
3:30 pm-9:20 am
2 stops25h 50m
Sydney Kingsford Smith
Wed 1/13
1:20 pm-8:14 pm
2 stops22h 54m
$1,508
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Fri 11/20
8:00 am-9:05 am
2 stops33h 05m
Sydney Kingsford Smith
Mon 11/30
11:20 am-9:57 pm
2 stops50h 37m
$1,508
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Thu 10/29
9:10 am-7:00 am
1 stop30h 50m
Sydney Kingsford Smith
Mon 11/2
9:20 am-8:33 pm
1 stop27h 13m
$1,515
Showing 1-10 of 33 resultsSorted by cheapest first
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.
SDF-MEL
SDF-SYD
SDF-PER
SDF-AVV
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
SDF-AU0
SDF-MEL
SDF-SYD
SDF-PER
SDF-AVV
What is the cheapest month to book a flight from Louisville to Australia?
Currently, January is the cheapest month in which you can book a flight from Louisville to Australia (average of $1,210). Flying from Louisville to Australia in December is currently the most expensive (average of $1,783). 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.
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 August 3, 2026.
Read through reviews of airlines operating flights from Louisville to Australia, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top regions
Alternative routes for Louisville to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Louisville to Australia by cabin class
Find flights from Louisville to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Australia flights
Browse other Louisville and Australia flight options. Last updated on August 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 2 airlines flying from Louisville to Australia
Discover the top 2 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 August 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$662 | Average$1,351 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$982 | Average$1,414 | FlexibilityNo cancel fee | On-time69% |