$549+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SYD
May 21 — May 281
Round-trip
1 adult, Economy
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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 April 21, 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 April 21, 2026.
This United Airlines deal was found by Cheapflights users on 4/18. 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 4/233:36 pm
SDF
- SYD
2 stops25h 19m
United Airlines
Fri 5/19:30 am
SYD
- SDF
2 stops26h 29m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,261
This United Airlines deal was found by Cheapflights users on 4/20. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:41 pm
SDF
- MEL
2 stops26h 34m
United Airlines
Fri 7/39:30 am
MEL
- SDF
2 stops24h 53m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,282
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/318:00 am
SDF
- MEL
3 stops36h 35m
United Airlines
Sun 6/79:30 am
MEL
- SDF
2 stops24h 31m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,310
This Delta deal was found by Cheapflights users on 4/16. 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 5/317:49 pm
SDF
- MEL
2 stops46h 01m
Delta
Sun 7/510:00 am
MEL
- SDF
2 stops27h 54m
Delta
Deal found 4/16![Delta logo]()
$1,392
This Delta deal was found by Cheapflights users on 4/16. 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 12/2912:53 pm
SDF
- SYD
2 stops27h 37m
Delta
Sat 1/1610:40 am
SYD
- SDF
2 stops26h 11m
Delta
Deal found 4/16![Delta logo]()
$1,414
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/1710:20 am
SYD
- SDF
2 stops24h 03m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,422
This United Airlines deal was found by Cheapflights users on 4/16. 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 6/62:05 pm
SDF
- MEL
2 stops28h 10m
United Airlines
Fri 7/310:55 am
MEL
- SDF
2 stops23h 28m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,486
This Delta deal was found by Cheapflights users on 4/16. 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 6/241:02 pm
SDF
- MEL
2 stops28h 48m
Delta
Wed 7/810:00 am
MEL
- SDF
2 stops27h 50m
Delta
Deal found 4/16![Delta logo]()
$1,494
This United Airlines deal was found by Cheapflights users on 4/16. 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 6/38:00 am
SDF
- MEL
3 stops33h 30m
United Airlines
Mon 7/610:55 am
MEL
- SDF
2 stops50h 04m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,504
This United Airlines deal was found by Cheapflights users on 4/16. 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 10/1711:00 am
SDF
- MEL
2 stops31h 15m
United Airlines
Mon 11/21:00 pm
MEL
- SDF
2 stops24h 30m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,506
This United Airlines deal was found by Cheapflights users on 4/20. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:00 am
SDF
- MEL
3 stops33h 30m
United Airlines
Wed 7/89:30 am
MEL
- SDF
2 stops23h 32m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,507
This United Airlines deal was found by Cheapflights users on 4/16. 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 12/299:32 am
SDF
- SYD
1 stop29h 28m
United Airlines
Sat 1/1611:50 am
SYD
- SDF
1 stop23h 45m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,509
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 April 21, 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 April 21, 2026.
This Delta deal was found by Cheapflights users on 4/16. 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 5/317:49 pm
SDF
- MEL
2 stops46h 01m
Delta
Sun 7/510:00 am
MEL
- SDF
2 stops27h 54m
Delta
Deal found 4/16![Delta logo]()
$1,392
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/103:25 pm
SDF
- SYD
2 stops25h 35m
United Airlines
Wed 6/179:30 am
SYD
- SDF
2 stops24h 31m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,422
This Air New Zealand deal was found by Cheapflights users on 4/19. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:50 pm
SDF
- MEL
2 stops28h 05m
Multiple Airlines
Mon 11/212:10 pm
MEL
- SDF
3 stops27h 55m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,937
This oojo deal was found by Cheapflights users on 4/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:50 pm
SDF
- AVV
2 stops31h 15m
Qantas Airways
Mon 11/210:20 am
AVV
- SDF
2 stops23h 19m
Qantas Airways
Deal found 4/19![Qantas Airways logo]()
$2,008
This Ovago deal was found by Cheapflights users on 4/21. 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.
Fri 6/59:30 am
SDF
- PER
2 stops42h 30m
Air New Zealand
Fri 6/127:50 pm
PER
- SDF
2 stops38h 25m
Air New Zealand
Deal found 4/21![Air New Zealand logo]()
$2,507
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/1710:20 am
SYD
- SDF
2 stops24h 03m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,422
This American Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:52 pm
SDF
- PER
2 stops33h 43m
American Airlines
Tue 6/911:55 pm
PER
- SDF
3 stops31h 05m
American Airlines
Deal found 4/18![American Airlines logo]()
$2,987
This Delta deal was found by Cheapflights users on 4/19. 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.
Sun 5/34:35 pm
SDF
- SYD
1 stop24h 15m
Delta
Wed 5/69:15 am
SYD
- SDF
2 stops26h 16m
Delta
Deal found 4/19![Delta logo]()
$1,517
This United Airlines deal was found by Cheapflights users on 4/18. 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 6/33:25 pm
SDF
- SYD
2 stops25h 30m
United Airlines
Wed 6/109:30 am
SYD
- SDF
2 stops24h 31m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,423
This United Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/82:05 pm
SDF
- SYD
2 stops26h 50m
United Airlines
Mon 6/159:30 am
SYD
- SDF
2 stops24h 53m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,423
This United Airlines deal was found by Cheapflights users on 4/16. 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 6/33:41 pm
SDF
- MEL
2 stops25h 49m
United Airlines
Thu 7/210:55 am
MEL
- SDF
2 stops47h 28m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,504
This Air New Zealand deal was found by Cheapflights users on 4/16. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/249:30 am
SDF
- MEL
2 stops35h 25m
Multiple Airlines
Wed 7/812:10 pm
MEL
- SDF
3 stops34h 55m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$2,092
This KAYAK deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:52 pm
SDF
- MEL
2 stops24h 53m
Qantas Airways
Wed 7/81:35 pm
MEL
- SDF
1 stop23h 41m
Qantas Airways
Deal found 4/18![Qantas Airways logo]()
$2,195
This Air New Zealand deal was found by Cheapflights users on 4/17. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:41 pm
SDF
- MEL
2 stops29h 14m
Multiple Airlines
Fri 7/38:35 am
MEL
- SDF
3 stops38h 30m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$2,093
This Qantas Airways deal was found by Cheapflights users on 4/16. 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.
Fri 6/57:45 pm
SDF
- AVV
2 stops37h 05m
Qantas Airways
Mon 7/64:40 pm
AVV
- SDF
2 stops38h 50m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,350
This KAYAK deal was found by Cheapflights users on 4/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:41 pm
SDF
- MEL
2 stops29h 14m
Air New Zealand
Sun 7/53:00 pm
MEL
- SDF
2 stops45h 15m
Air New Zealand
Deal found 4/20![Air New Zealand logo]()
$2,605
This United Airlines deal was found by Cheapflights users on 4/18. 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 6/28:00 am
SDF
- PER
3 stops42h 40m
United Airlines
Tue 6/93:30 pm
PER
- SDF
3 stops58h 58m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,833
This Qantas Airways deal was found by Cheapflights users on 4/16. 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.
Tue 6/27:45 pm
SDF
- AVV
2 stops28h 25m
Qantas Airways
Thu 7/26:00 am
AVV
- SDF
2 stops25h 30m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,548
This Qantas Airways deal was found by Cheapflights users on 4/16. 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.
Mon 6/17:45 pm
SDF
- AVV
2 stops28h 25m
Qantas Airways
Fri 7/38:55 pm
AVV
- SDF
2 stops34h 35m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,550
This Qantas Airways deal was found by Cheapflights users on 4/16. 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.
Thu 6/47:45 pm
SDF
- AVV
2 stops28h 25m
Qantas Airways
Fri 7/38:55 pm
AVV
- SDF
2 stops34h 35m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,600
This oojo deal was found by Cheapflights users on 4/17. 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 6/247:45 pm
SDF
- AVV
2 stops28h 25m
Qantas Airways
Wed 7/86:00 am
AVV
- SDF
2 stops25h 30m
Qantas Airways
Deal found 4/17![Qantas Airways logo]()
$2,655
This Qantas Airways deal was found by Cheapflights users on 4/16. 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.
Thu 6/47:45 pm
SDF
- AVV
2 stops28h 25m
Qantas Airways
Wed 7/18:55 pm
AVV
- SDF
2 stops34h 35m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,800
This Qantas Airways deal was found by Cheapflights users on 4/16. 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.
Fri 6/57:45 pm
SDF
- AVV
2 stops37h 05m
Qantas Airways
Tue 6/306:00 am
AVV
- SDF
2 stops25h 32m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,923
This oojo deal was found by Cheapflights users on 4/17. 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 6/37:45 pm
SDF
- AVV
2 stops28h 25m
Qantas Airways
Fri 7/36:00 am
AVV
- SDF
2 stops25h 30m
Qantas Airways
Deal found 4/17![Qantas Airways logo]()
$3,288
Last-minute flights from Louisville to AustraliaDiscover last-minute flight deals from Louisville to Australia. Data last updated April 21, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Australia. Data last updated April 21, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/18. 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 4/233:36 pm
SDF
- SYD
2 stops25h 19m
United Airlines
Fri 5/19:30 am
SYD
- SDF
2 stops26h 29m
United Airlines
Deal found 4/18![United Airlines logo]()
$1,261
This BusinessClass deal was found by Cheapflights users on 4/18. 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.
Thu 4/239:15 am
SDF
- SYD
2 stops33h 30m
Air New Zealand
Fri 5/110:20 am
SYD
- SDF
1 stop42h 21m
Air New Zealand
Deal found 4/18![Air New Zealand logo]()
$2,465
This Cathay Pacific deal was found by Cheapflights users on 4/18. 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 4/2311:16 am
SDF
- SYD
3 stops38h 19m
Multiple Airlines
Fri 5/19:55 pm
SYD
- SDF
2 stops37h 35m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$2,628
This Qatar Airways deal was found by Cheapflights users on 4/19. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:06 am
SDF
- SYD
2 stops45h 24m
Qatar Airways
Fri 5/157:30 pm
SYD
- SDF
3 stops40h 00m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$2,041
This Delta deal was found by Cheapflights users on 4/19. 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.
Sun 5/34:35 pm
SDF
- SYD
1 stop24h 15m
Delta
Wed 5/69:15 am
SYD
- SDF
2 stops26h 16m
Delta
Deal found 4/19![Delta logo]()
$1,517
This Qatar Airways deal was found by Cheapflights users on 4/19. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:07 pm
SDF
- SYD
2 stops39h 23m
Multiple Airlines
Wed 5/66:30 pm
SYD
- SDF
3 stops41h 00m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$2,146
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/63:30 pm
SDF
- SYD
2 stops25h 25m
United Airlines
Sun 5/109:30 am
SYD
- SDF
2 stops24h 47m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,522
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/318:00 am
SDF
- MEL
3 stops36h 35m
United Airlines
Sun 6/79:30 am
MEL
- SDF
2 stops24h 31m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,310
This Delta deal was found by Cheapflights users on 4/16. 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 5/317:59 pm
SDF
- MEL
2 stops45h 51m
Delta
Fri 7/310:00 am
MEL
- SDF
2 stops39h 53m
Delta
Deal found 4/16![Delta logo]()
$1,392
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/312:05 pm
SDF
- MEL
2 stops51h 25m
United Airlines
Thu 7/210:55 am
MEL
- SDF
2 stops47h 28m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,510
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/318:00 am
SDF
- MEL
2 stops34h 15m
United Airlines
Tue 6/3010:55 am
MEL
- SDF
2 stops41h 33m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,974
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/318:00 am
SDF
- MEL
2 stops34h 15m
United Airlines
Sat 7/410:55 am
MEL
- SDF
2 stops41h 33m
United Airlines
Deal found 4/16![United Airlines logo]()
$2,025
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 April 21, 2026.
Search for one-way flight options from Louisville to Australia. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 8/129:21 am
SDF
- SYD
2 stops36h 29m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:05 am
SDF
- SYD
2 stops33h 45m
Delta
Deal found 4/20![Delta logo]()
$654
This Delta deal was found by Cheapflights users on 4/19. 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.
Sun 5/102:34 pm
SDF
- SYD
2 stops26h 16m
Delta
Deal found 4/19![Delta logo]()
$704
This oojo deal was found by Cheapflights users on 4/16. 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 8/127:03 pm
SDF
- SYD
1 stop21h 52m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$1,093
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:56 am
SDF
- SYD
3 stops37h 29m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,168
This Cathay Pacific deal was found by Cheapflights users on 4/17. 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.
Sat 5/165:56 am
SDF
- SYD
3 stops47h 54m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,469
This oojo deal was found by Cheapflights users on 4/16. 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.
Sat 5/167:55 pm
SDF
- SYD
1 stop21h 00m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$2,144
This American Airlines deal was found by Cheapflights users on 4/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:00 am
SDF
- SYD
1 stop29h 55m
American Airlines
Deal found 4/19![American Airlines logo]()
$2,218
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 April 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,261 (United Airlines) |
One-way from | $549 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $1,584 |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 21, 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
Sun 5/31
7:49 pm-7:50 am
2 stops46h 01m
Melbourne
Sun 7/5
10:00 am-11:54 pm
2 stops27h 54m
$1,392
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Wed 6/10
3:25 pm-7:00 am
2 stops25h 35m
Sydney Kingsford Smith
Wed 6/17
9:30 am-8:01 pm
2 stops24h 31m
$1,422
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Tue 6/9
3:25 pm-6:55 am
2 stops25h 30m
Sydney Kingsford Smith
Wed 6/17
10:20 am-8:23 pm
2 stops24h 03m
$1,422
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Wed 6/3
3:25 pm-6:55 am
2 stops25h 30m
Sydney Kingsford Smith
Wed 6/10
9:30 am-8:01 pm
2 stops24h 31m
$1,423
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Mon 6/8
2:05 pm-6:55 am
2 stops26h 50m
Sydney Kingsford Smith
Mon 6/15
9:30 am-8:23 pm
2 stops24h 53m
$1,423
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Wed 6/3
3:41 pm-7:30 am
2 stops25h 49m
Melbourne
Thu 7/2
10:55 am-8:23 pm
2 stops47h 28m
$1,504
LouisvilleSydney
SDF - SYD
SDFSYD
Louisville Intl
Sun 5/3
4:35 pm-6:50 am
1 stop24h 15m
Sydney Kingsford Smith
Wed 5/6
9:15 am-9:31 pm
2 stops26h 16m
$1,517
LouisvillePerth
SDF - PER
SDFPER
Louisville Intl
Tue 6/2
8:00 am-2:40 pm
3 stops42h 40m
Perth
Tue 6/9
3:30 pm-2:28 pm
3 stops58h 58m
$1,833
LouisvilleMelbourne
SDF - MEL
SDFMEL
Louisville Intl
Sat 10/17
3:50 pm-10:55 am
2 stops28h 05m
Melbourne
Mon 11/2
12:10 pm-12:05 am
3 stops27h 55m
$1,937
LouisvilleMelbourne
SDF - AVV
SDFAVV
Louisville Intl
Sat 10/17
5:50 pm-4:05 pm
2 stops31h 15m
Melbourne Avalon
Mon 11/2
10:20 am-5:39 pm
2 stops23h 19m
$2,008
Showing 1-10 of 28 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-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, May is the cheapest month in which you can book a flight from Louisville to Australia (average of $527). Flying from Louisville to Australia in April is currently the most expensive (average of $1,351). 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 April 21, 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.
Entertainment
7.8
Food
7.2
Crew
8.5
Comfort
7.9
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Comfort
7.9
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Crew
8.5
Comfort
7.9
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
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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 April 21, 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 April 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$662 | Average$1,351 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$973 | Average$1,470 | FlexibilityNo cancel fee | On-time69% |