$585+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
Mar 13 — Mar 201
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 “Find deals”2. 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 provider’s pricing and select the best option for you! Book through your favorite provider’s 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 February 11, 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 February 11, 2026.
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:25 pm
SDF
- SYD
2 stops25h 30m
United Airlines
Wed 6/179:30 am
SYD
- SDF
2 stops23h 46m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,140
This oojo deal was found by Cheapflights users on 2/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:32 am
SDF
- SYD
2 stops33h 13m
Air New Zealand
Sat 9/511:55 am
SYD
- SDF
2 stops23h 35m
Air New Zealand
Deal found 2/10![Air New Zealand logo]()
$1,274
This United Airlines deal was found by Cheapflights users on 2/8. 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 2/149:15 am
SDF
- SYD
1 stop29h 45m
United Airlines
Wed 2/1811:50 am
SYD
- SDF
1 stop25h 56m
United Airlines
Deal found 2/8![United Airlines logo]()
$1,277
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/93:30 pm
SDF
- MEL
2 stops26h 00m
United Airlines
Fri 2/2011:30 am
MEL
- SDF
2 stops24h 39m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,296
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/163:30 pm
SDF
- MEL
2 stops26h 00m
United Airlines
Fri 2/2011:30 am
MEL
- SDF
2 stops26h 16m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,297
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:20 am
SDF
- MEL
2 stops34h 30m
Delta
Wed 7/810:00 am
MEL
- SDF
2 stops26h 50m
Delta
Deal found 2/9![Delta logo]()
$1,304
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/92:05 pm
SDF
- MEL
2 stops27h 25m
United Airlines
Mon 2/2311:30 am
MEL
- SDF
2 stops42h 49m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,313
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/193:30 pm
SDF
- SYD
1 stop24h 30m
United Airlines
Sun 4/510:20 am
SYD
- SDF
2 stops50h 19m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,446
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/273:15 pm
SDF
- MEL
2 stops26h 45m
United Airlines
Fri 4/311:55 am
MEL
- SDF
2 stops40h 22m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,457
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:35 am
SDF
- MEL
2 stops36h 40m
United Airlines
Sat 4/411:55 am
MEL
- SDF
2 stops47h 21m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,478
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 2/223:30 pm
SDF
- SYD
2 stops25h 35m
United Airlines
Wed 2/2512:10 pm
SYD
- SDF
2 stops50h 27m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,492
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/289:00 am
SDF
- SYD
2 stops31h 55m
United Airlines
Sat 4/411:20 am
SYD
- SDF
2 stops26h 19m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,539
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 February 11, 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 February 11, 2026.
This United Airlines deal was found by Cheapflights users on 2/8. 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 2/149:15 am
SDF
- SYD
1 stop29h 45m
United Airlines
Wed 2/1811:50 am
SYD
- SDF
1 stop25h 56m
United Airlines
Deal found 2/8![United Airlines logo]()
$1,277
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:20 am
SDF
- MEL
2 stops34h 30m
Delta
Wed 7/810:00 am
MEL
- SDF
2 stops26h 50m
Delta
Deal found 2/9![Delta logo]()
$1,304
This FlightHub deal was found by Cheapflights users on 2/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:52 pm
SDF
- MEL
1 stop23h 08m
Qantas Airways
Wed 7/81:35 pm
MEL
- SDF
1 stop23h 50m
Qantas Airways
Deal found 2/9![Qantas Airways logo]()
$1,787
This BusinessClass deal was found by Cheapflights users on 2/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/283:49 pm
SDF
- PER
2 stops38h 46m
Qatar Airways
Sat 4/410:40 pm
PER
- SDF
2 stops52h 23m
Qatar Airways
Deal found 2/11![Qatar Airways logo]()
$2,099
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 3/143:30 pm
SDF
- SYD
1 stop24h 30m
United Airlines
Fri 3/2711:50 am
SYD
- SDF
1 stop23h 01m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,277
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 4/43:30 pm
SDF
- SYD
2 stops25h 25m
United Airlines
Thu 4/99:30 am
SYD
- SDF
2 stops24h 30m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,282
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 3/123:15 pm
SDF
- MEL
2 stops26h 45m
United Airlines
Mon 3/2310:30 am
MEL
- SDF
2 stops24h 21m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,296
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/93:30 pm
SDF
- MEL
2 stops26h 00m
United Airlines
Fri 3/2012:00 pm
MEL
- SDF
2 stops24h 59m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,296
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/93:15 pm
SDF
- MEL
2 stops26h 15m
United Airlines
Mon 3/2310:30 am
MEL
- SDF
2 stops24h 21m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,298
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:00 am
SDF
- MEL
2 stops32h 30m
United Airlines
Thu 3/1212:00 pm
MEL
- SDF
2 stops23h 14m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,298
This Qantas Airways deal was found by Cheapflights users on 2/11. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/282:01 pm
SDF
- PER
3 stops34h 14m
Multiple Airlines
Sat 4/45:10 pm
PER
- SDF
3 stops36h 27m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$4,182
This Qantas Airways deal was found by Cheapflights users on 2/9. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:52 pm
SDF
- AVV
2 stops32h 18m
Qantas Airways
Wed 7/86:00 am
AVV
- SDF
2 stops31h 25m
Qantas Airways
Deal found 2/9![Qantas Airways logo]()
$2,121
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/12:05 pm
SDF
- MEL
2 stops27h 55m
United Airlines
Sun 3/812:00 pm
MEL
- SDF
2 stops23h 14m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,298
This Orbitz deal was found by Cheapflights users on 2/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:23 pm
SDF
- AVV
2 stops30h 27m
Qantas Airways
Fri 3/206:00 am
AVV
- SDF
2 stops31h 38m
Qantas Airways
Deal found 2/9![Qantas Airways logo]()
$2,445
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/273:15 pm
SDF
- MEL
2 stops26h 45m
United Airlines
Fri 4/311:55 am
MEL
- SDF
2 stops40h 22m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,457
This Expedia deal was found by Cheapflights users on 2/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:23 pm
SDF
- AVV
2 stops34h 57m
Qantas Airways
Mon 3/234:25 pm
AVV
- SDF
2 stops40h 12m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$2,500
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:35 am
SDF
- MEL
2 stops36h 40m
United Airlines
Sat 4/411:55 am
MEL
- SDF
2 stops47h 21m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,478
This Ovago deal was found by Cheapflights users on 2/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:23 pm
SDF
- PER
2 stops34h 37m
Qantas Airways
Sat 4/410:55 pm
PER
- SDF
3 stops54h 42m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$2,842
This Ovago deal was found by Cheapflights users on 2/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:23 pm
SDF
- AVV
2 stops30h 27m
Qantas Airways
Mon 3/236:00 am
AVV
- SDF
2 stops26h 37m
Qantas Airways
Deal found 2/9![Qantas Airways logo]()
$2,995
This FlightHub deal was found by Cheapflights users on 2/11. 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.
Thu 2/266:23 pm
SDF
- AVV
2 stops29h 27m
Qantas Airways
Thu 3/128:10 am
AVV
- SDF
2 stops24h 27m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$9,888
Last-minute flights from Louisville to AustraliaDiscover last-minute flight deals from Louisville to Australia. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Australia. Data last updated February 11, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/8. 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 2/149:15 am
SDF
- SYD
1 stop29h 45m
United Airlines
Wed 2/1811:50 am
SYD
- SDF
1 stop25h 56m
United Airlines
Deal found 2/8![United Airlines logo]()
$1,277
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/163:30 pm
SDF
- MEL
2 stops26h 00m
United Airlines
Fri 2/2011:30 am
MEL
- SDF
2 stops26h 16m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 2/8. 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 2/203:30 pm
SDF
- MEL
2 stops26h 00m
United Airlines
Tue 2/241:00 pm
MEL
- SDF
2 stops25h 13m
United Airlines
Deal found 2/8![United Airlines logo]()
$1,296
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 2/223:30 pm
SDF
- SYD
2 stops25h 35m
United Airlines
Wed 2/2512:10 pm
SYD
- SDF
2 stops50h 27m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,492
This Cathay Pacific deal was found by Cheapflights users on 2/9. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:23 pm
SDF
- MEL
2 stops37h 37m
Multiple Airlines
Mon 3/234:30 pm
MEL
- SDF
3 stops46h 28m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$1,909
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/193:30 pm
SDF
- SYD
1 stop24h 30m
United Airlines
Sun 4/510:20 am
SYD
- SDF
2 stops50h 19m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,446
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/202:17 pm
SDF
- SYD
2 stops26h 13m
Delta
Tue 3/3110:15 am
SYD
- SDF
2 stops26h 00m
Delta
Deal found 2/9![Delta logo]()
$1,572
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Fri 3/203:30 pm
SDF
- SYD
1 stop24h 30m
United Airlines
Tue 3/3111:20 am
SYD
- SDF
2 stops37h 05m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,704
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 3/269:15 am
SDF
- SYD
1 stop30h 45m
United Airlines
Thu 4/210:30 am
SYD
- SDF
2 stops27h 09m
United Airlines
Deal found 2/9![United Airlines logo]()
$1,618
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/273:15 pm
SDF
- MEL
2 stops26h 45m
United Airlines
Fri 4/311:55 am
MEL
- SDF
2 stops40h 22m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,457
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:35 am
SDF
- MEL
2 stops36h 40m
United Airlines
Sat 4/411:55 am
MEL
- SDF
2 stops47h 21m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,478
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/289:00 am
SDF
- SYD
2 stops31h 55m
United Airlines
Sat 4/411:20 am
SYD
- SDF
2 stops26h 19m
United Airlines
Deal found 2/11![United Airlines logo]()
$1,539
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 February 11, 2026.
Search for one-way flight options from Louisville to Australia. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/253:30 pm
SDF
- SYD
1 stop24h 30m
United Airlines
Deal found 2/10![United Airlines logo]()
$585
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/303:05 pm
SDF
- MEL
2 stops26h 45m
Delta
Deal found 2/11![Delta logo]()
$694
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:37 pm
SDF
- MEL
2 stops46h 13m
Delta
Deal found 2/11![Delta logo]()
$700
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/313:05 pm
SDF
- MEL
2 stops50h 45m
Delta
Deal found 2/11![Delta logo]()
$718
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/281:58 pm
SDF
- MEL
2 stops28h 17m
United Airlines
Deal found 2/11![United Airlines logo]()
$737
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Wed 4/112:09 pm
SDF
- MEL
3 stops44h 56m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$765
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Wed 3/2512:09 pm
SDF
- SYD
3 stops54h 56m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$816
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/43:49 pm
SDF
- MEL
3 stops48h 26m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$848
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Thu 4/212:14 pm
SDF
- MEL
3 stops52h 31m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$889
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Tue 3/3112:07 pm
SDF
- MEL
3 stops44h 58m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$913
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Mon 3/303:49 pm
SDF
- MEL
3 stops48h 26m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$950
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Fri 4/33:49 pm
SDF
- MEL
3 stops48h 26m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$957
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,277 (United Airlines) |
One-way from | $585 (United Airlines) |
Popular in | December |
Cheapest in | November |
Average price | $1,340 |
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 February 11, 2026.
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
Sat 2/14
9:15 am-7:00 am
1 stop29h 45m
Sydney Kingsford Smith
Wed 2/18
11:50 am-9:46 pm
1 stop25h 56m
$1,277
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Sat 3/14
3:30 pm-7:00 am
1 stop24h 30m
Sydney Kingsford Smith
Fri 3/27
11:50 am-7:51 pm
1 stop23h 01m
$1,277
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Sat 4/4
3:30 pm-6:55 am
2 stops25h 25m
Sydney Kingsford Smith
Thu 4/9
9:30 am-8:00 pm
2 stops24h 30m
$1,282
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Thu 3/12
3:15 pm-9:00 am
2 stops26h 45m
Melbourne
Mon 3/23
10:30 am-7:51 pm
2 stops24h 21m
$1,296
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Mon 3/9
3:30 pm-8:30 am
2 stops26h 00m
Melbourne
Fri 3/20
12:00 pm-9:59 pm
2 stops24h 59m
$1,296
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Mon 3/9
3:15 pm-8:30 am
2 stops26h 15m
Melbourne
Mon 3/23
10:30 am-7:51 pm
2 stops24h 21m
$1,298
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Thu 2/26
9:00 am-9:30 am
2 stops32h 30m
Melbourne
Thu 3/12
12:00 pm-8:14 pm
2 stops23h 14m
$1,298
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Sun 3/1
2:05 pm-10:00 am
2 stops27h 55m
Melbourne
Sun 3/8
12:00 pm-7:14 pm
2 stops23h 14m
$1,298
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Wed 6/24
7:20 am-7:50 am
2 stops34h 30m
Melbourne
Wed 7/8
10:00 am-10:50 pm
2 stops26h 50m
$1,304
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Fri 3/27
3:15 pm-9:00 am
2 stops26h 45m
Melbourne
Fri 4/3
11:55 am-1:17 pm
2 stops40h 22m
$1,457
Showing 1-10 of 42 results
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-SYD
SDF-MEL
SDF-AVV
SDF-PER
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-SYD
SDF-MEL
SDF-AVV
SDF-PER
What is the cheapest month to book a flight from Louisville to Australia?
Currently, October is the cheapest month in which you can book a flight from Louisville to Australia (average of $378). Flying from Louisville to Australia in December is currently the most expensive (average of $1,035). 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 February 11, 2026.
Read through reviews of airlines operating flights from Louisville to Australia, such as Air New Zealand, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
8.0
Boarding
8.2
Food
7.4
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentDavid,Jan 2026
AKL - IAH
Crew
8.5
Overall
8.0
Boarding
8.2
Food
7.4
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentDavid,Jan 2026
AKL - IAH
Crew
8.5
Overall
8.0
Boarding
8.2
Food
7.4
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentDavid,Jan 2026
AKL - IAH
Crew
8.5
Overall
8.0
Boarding
8.2
Food
7.4
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentDavid,Jan 2026
AKL - IAH
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 destinations
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 February 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Louisville to Australia flights
Consider these flights traveling from Louisville to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 3 airlines flying from Louisville to Australia
Discover the top 3 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$973 | Average$1,542 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$985 | Average$1,432 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,380 | Average$1,684 | FlexibilityNo cancel fee | On-time78% |