$491+ Cheap flights from St. Louis (STL) 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Mar 15 — Mar 221
1 adult, Economy
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Find cheap flights from St. Louis 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
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Cheapest flights from St. Louis to AustraliaExplore the most affordable flight options available from St. Louis to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
Explore the most affordable flight options available from St. Louis to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
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.
Tue 3/34:13 pm
STL
- SYD
2 stops35h 37m
Qantas Airways
Tue 3/1011:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$898
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:13 pm
STL
- SYD
2 stops36h 37m
Qantas Airways
Wed 3/2511:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$899
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:38 am
STL
- SYD
1 stop33h 22m
Qantas Airways
Thu 2/195:50 pm
SYD
- STL
2 stops40h 23m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$908
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.
Fri 2/136:38 am
STL
- SYD
1 stop33h 22m
Qantas Airways
Sun 2/157:15 pm
SYD
- STL
2 stops45h 44m
Qantas Airways
Deal found 2/9![Qantas Airways logo]()
$943
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:05 pm
STL
- BNE
2 stops48h 40m
Multiple Airlines
Wed 4/2910:00 am
BNE
- STL
2 stops21h 56m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$961
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:00 pm
STL
- BNE
2 stops51h 05m
Air Canada
Tue 6/910:00 am
BNE
- STL
2 stops25h 05m
Air Canada
Deal found 2/11![Air Canada logo]()
$971
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:05 am
STL
- BNE
2 stops30h 40m
Multiple Airlines
Wed 3/189:45 am
BNE
- STL
2 stops22h 04m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,033
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.
Tue 3/106:08 pm
STL
- BNE
2 stops32h 02m
Qantas Airways
Wed 3/187:40 pm
BNE
- STL
1 stop19h 18m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,034
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:05 pm
STL
- BNE
2 stops48h 40m
Air Canada
Mon 3/910:45 am
BNE
- STL
2 stops43h 44m
Air Canada
Deal found 2/12![Air Canada logo]()
$1,036
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 3/116:50 pm
STL
- SYD
2 stops34h 00m
Qantas Airways
Wed 3/1811:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,048
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:50 pm
STL
- MEL
2 stops35h 55m
Qantas Airways
Mon 4/69:45 am
MEL
- STL
1 stop29h 13m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,050
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/174:30 pm
STL
- BNE
2 stops24h 15m
Air Canada
Fri 2/2010:45 am
BNE
- STL
2 stops44h 44m
Air Canada
Deal found 2/9![Air Canada logo]()
$1,055
Best flights from St. Louis to AustraliaDiscover carefully curated flight deals from St. Louis to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
Discover carefully curated flight deals from St. Louis to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:05 pm
STL
- BNE
2 stops48h 40m
Multiple Airlines
Wed 4/2910:00 am
BNE
- STL
2 stops21h 56m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$961
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.
Tue 3/106:08 pm
STL
- BNE
2 stops32h 02m
Qantas Airways
Wed 3/187:40 pm
BNE
- STL
1 stop19h 18m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,034
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:05 pm
STL
- BNE
2 stops48h 40m
Air Canada
Mon 3/910:45 am
BNE
- STL
2 stops43h 44m
Air Canada
Deal found 2/12![Air Canada logo]()
$1,036
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:19 pm
STL
- MEL
2 stops27h 11m
American Airlines
Fri 3/2012:00 pm
MEL
- STL
2 stops25h 11m
American Airlines
Deal found 2/10![American Airlines logo]()
$1,274
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 4/37:05 pm
STL
- MEL
1 stop22h 10m
United Airlines
Sun 4/1910:55 am
MEL
- STL
1 stop22h 29m
United Airlines
Deal found 2/10![United Airlines logo]()
$1,293
This oojo deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
STL
- PER
2 stops45h 45m
Qatar Airways
Thu 3/1910:45 pm
PER
- STL
2 stops50h 59m
Qatar Airways
Deal found 2/12![Qatar Airways logo]()
$1,748
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:05 am
STL
- BNE
2 stops30h 40m
Multiple Airlines
Wed 3/189:45 am
BNE
- STL
2 stops22h 04m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,033
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:30 am
STL
- BNE
3 stops37h 00m
Air Canada
Tue 6/910:00 am
BNE
- STL
2 stops25h 05m
Air Canada
Deal found 2/11![Air Canada logo]()
$1,043
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 3/116:50 pm
STL
- SYD
2 stops34h 00m
Qantas Airways
Wed 3/1811:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,048
This oojo deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:38 am
STL
- BNE
2 stops56h 52m
Qantas Airways
Mon 3/97:40 pm
BNE
- STL
1 stop19h 18m
Qantas Airways
Deal found 2/12![Qantas Airways logo]()
$1,057
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/271:15 pm
STL
- BNE
2 stops50h 50m
Air Canada
Sun 7/510:00 am
BNE
- STL
2 stops43h 02m
Air Canada
Deal found 2/10![Air Canada logo]()
$1,139
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:31 pm
STL
- MEL
2 stops26h 59m
American Airlines
Sat 3/2112:00 pm
MEL
- STL
1 stop27h 58m
American Airlines
Deal found 2/11![American Airlines logo]()
$1,275
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:05 pm
STL
- BNE
2 stops48h 40m
Multiple Airlines
Mon 3/96:10 am
BNE
- STL
3 stops48h 19m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,161
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.
Thu 2/266:38 am
STL
- SYD
2 stops45h 12m
Qantas Airways
Mon 3/25:45 pm
SYD
- STL
1 stop23h 14m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,066
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:25 pm
STL
- MEL
1 stop23h 35m
United Airlines
Sun 3/11:00 pm
MEL
- STL
1 stop20h 44m
United Airlines
Deal found 2/12![United Airlines logo]()
$1,294
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:00 pm
STL
- SYD
2 stops27h 20m
Air Canada
Mon 5/189:20 am
SYD
- STL
2 stops25h 45m
Air Canada
Deal found 2/10![Air Canada logo]()
$1,151
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:25 pm
STL
- MEL
1 stop23h 35m
United Airlines
Mon 3/912:00 pm
MEL
- STL
1 stop26h 25m
United Airlines
Deal found 2/12![United Airlines logo]()
$1,294
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:00 am
STL
- HBA
2 stops37h 00m
Air New Zealand
Fri 4/36:00 am
HBA
- STL
3 stops39h 50m
Air New Zealand
Deal found 2/10![Air New Zealand logo]()
$2,862
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.
Tue 3/34:13 pm
STL
- SYD
2 stops33h 12m
Qantas Airways
Tue 3/105:50 pm
SYD
- STL
2 stops37h 38m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,141
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 3/284:13 pm
STL
- MEL
1 stop20h 47m
Multiple Airlines
Sat 4/42:35 pm
MEL
- STL
1 stop21h 07m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,281
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/21:00 pm
STL
- SYD
2 stops51h 20m
Air Canada
Sat 5/169:20 am
SYD
- STL
2 stops25h 45m
Air Canada
Deal found 2/10![Air Canada logo]()
$1,193
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.
Mon 5/46:21 am
STL
- SYD
2 stops35h 59m
Qantas Airways
Mon 5/1812:00 pm
SYD
- STL
1 stop22h 30m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,192
This Travelocity deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:30 am
STL
- SYD
2 stops32h 50m
Air Canada
Fri 5/229:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Deal found 2/12![Air Canada logo]()
$1,204
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:05 pm
STL
- SYD
2 stops48h 30m
Air Canada
Tue 3/1010:20 am
SYD
- STL
2 stops45h 09m
Air Canada
Deal found 2/12![Air Canada logo]()
$1,205
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:13 pm
STL
- AVV
2 stops36h 07m
Multiple Airlines
Mon 4/68:55 pm
AVV
- STL
2 stops42h 02m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,542
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.
Mon 3/234:13 pm
STL
- MEL
1 stop20h 47m
Qantas Airways
Mon 4/69:45 am
MEL
- STL
1 stop29h 13m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,281
This Qatar 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:18 pm
STL
- CBR
3 stops45h 02m
Qatar Airways
Fri 2/2712:30 pm
CBR
- STL
3 stops41h 03m
Qatar Airways
Deal found 2/9![Qatar Airways logo]()
$2,294
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:38 am
STL
- HBA
2 stops46h 47m
Multiple Airlines
Fri 4/38:55 am
HBA
- STL
2 stops26h 34m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,588
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:21 am
STL
- CNS
2 stops42h 34m
Multiple Airlines
Tue 5/126:00 am
CNS
- STL
3 stops32h 59m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,621
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 3/276:51 am
STL
- CBR
2 stops36h 49m
United Airlines
Fri 4/38:10 am
CBR
- STL
2 stops37h 40m
United Airlines
Deal found 2/10![United Airlines logo]()
$2,180
Last-minute flights from St. Louis to AustraliaDiscover last-minute flight deals from St. Louis to Australia. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Australia. Data last updated February 13, 2026 and is based on user searches.
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:38 am
STL
- SYD
1 stop33h 22m
Qantas Airways
Thu 2/195:50 pm
SYD
- STL
2 stops40h 23m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$908
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.
Fri 2/136:38 am
STL
- SYD
1 stop33h 22m
Qantas Airways
Sun 2/157:15 pm
SYD
- STL
2 stops45h 44m
Qantas Airways
Deal found 2/9![Qantas Airways logo]()
$943
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/174:30 pm
STL
- BNE
2 stops24h 15m
Air Canada
Fri 2/2010:45 am
BNE
- STL
2 stops44h 44m
Air Canada
Deal found 2/9![Air Canada logo]()
$1,055
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:05 pm
STL
- BNE
2 stops48h 40m
Air Canada
Mon 3/910:45 am
BNE
- STL
2 stops43h 44m
Air Canada
Deal found 2/12![Air Canada logo]()
$1,036
This oojo deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:38 am
STL
- BNE
2 stops56h 52m
Qantas Airways
Mon 3/97:40 pm
BNE
- STL
1 stop19h 18m
Qantas Airways
Deal found 2/12![Qantas Airways logo]()
$1,057
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.
Tue 3/34:13 pm
STL
- SYD
2 stops35h 37m
Qantas Airways
Tue 3/1011:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$898
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:05 am
STL
- BNE
2 stops30h 40m
Multiple Airlines
Wed 3/189:45 am
BNE
- STL
2 stops22h 04m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,033
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.
Tue 3/106:08 pm
STL
- BNE
2 stops32h 02m
Qantas Airways
Wed 3/187:40 pm
BNE
- STL
1 stop19h 18m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,034
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 3/116:50 pm
STL
- SYD
2 stops34h 00m
Qantas Airways
Wed 3/1811:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,048
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:13 pm
STL
- SYD
2 stops36h 37m
Qantas Airways
Wed 3/2511:20 am
SYD
- STL
1 stop28h 38m
Qantas Airways
Deal found 2/11![Qantas Airways logo]()
$899
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:05 pm
STL
- BNE
2 stops48h 40m
Multiple Airlines
Wed 4/2910:00 am
BNE
- STL
2 stops21h 56m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$961
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:50 pm
STL
- MEL
2 stops35h 55m
Qantas Airways
Mon 4/69:45 am
MEL
- STL
1 stop29h 13m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$1,050
One-way flights from St. Louis to AustraliaSearch for one-way flight options from St. Louis to Australia. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
Search for one-way flight options from St. Louis to Australia. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/108:06 pm
STL
- BNE
3 stops47h 19m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$491
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 2/254:51 pm
STL
- SYD
3 stops50h 44m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:08 pm
STL
- BNE
1 stop20h 22m
American Airlines
Deal found 2/12![American Airlines logo]()
$563
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.
Thu 4/210:12 pm
STL
- BNE
2 stops39h 48m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$579
This Air Canada deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:05 pm
STL
- SYD
2 stops48h 30m
Air Canada
Deal found 2/12![Air Canada logo]()
$676
This Qantas Airways 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:18 pm
STL
- SYD
2 stops23h 37m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$684
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:13 pm
STL
- SYD
1 stop21h 42m
American Airlines
Deal found 2/11![American Airlines logo]()
$747
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 3/25:25 pm
STL
- SYD
1 stop22h 50m
United Airlines
Deal found 2/10![United Airlines logo]()
$755
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:38 am
STL
- BNE
1 stop31h 22m
Qantas Airways
Deal found 2/10![Qantas Airways logo]()
$799
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:41 am
STL
- SYD
3 stops42h 39m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$928
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:38 am
STL
- BNE
1 stop31h 22m
American Airlines
Deal found 2/10![American Airlines logo]()
$1,012
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:18 pm
STL
- SYD
3 stops44h 27m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$1,081
Find flight deals from St. Louis to Australia
Keep the following information in mind while searching for St. Louis to Australia flight deals. Data was last updated February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $898 (oojo) |
One-way from | $491 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,348 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 13, 2026.
Use the filters below to find and compare flights from St. Louis to Australia that are best for you.
Fly from
St. Louis
Fly to
Australia
Route
Depart
Return
Price
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Sun 3/22
4:05 pm-7:45 am
2 stops48h 40m
Brisbane
Wed 4/29
10:00 am-4:56 pm
2 stops21h 56m
$961
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Tue 3/10
10:05 am-7:45 am
2 stops30h 40m
Brisbane
Wed 3/18
9:45 am-4:49 pm
2 stops22h 04m
$1,033
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Tue 3/10
6:08 pm-5:10 pm
2 stops32h 02m
Brisbane
Wed 3/18
7:40 pm-11:58 pm
1 stop19h 18m
$1,034
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Mon 3/2
4:05 pm-8:45 am
2 stops48h 40m
Brisbane
Mon 3/9
10:45 am-3:29 pm
2 stops43h 44m
$1,036
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Sat 5/23
7:30 am-11:30 am
3 stops37h 00m
Brisbane
Tue 6/9
10:00 am-8:05 pm
2 stops25h 05m
$1,043
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Wed 3/11
6:50 pm-8:50 pm
2 stops34h 00m
Sydney Kingsford Smith
Wed 3/18
11:20 am-11:58 pm
1 stop28h 38m
$1,048
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Mon 3/2
6:38 am-7:30 am
2 stops56h 52m
Brisbane
Mon 3/9
7:40 pm-11:58 pm
1 stop19h 18m
$1,057
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Thu 2/26
6:38 am-8:50 pm
2 stops45h 12m
Sydney Kingsford Smith
Mon 3/2
5:45 pm-11:59 pm
1 stop23h 14m
$1,066
St. LouisBrisbane
STL - BNE
STLBNE
Lambert-St Louis
Sat 6/27
1:15 pm-7:05 am
2 stops50h 50m
Brisbane
Sun 7/5
10:00 am-2:02 pm
2 stops43h 02m
$1,139
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Tue 3/3
4:13 pm-6:25 pm
2 stops33h 12m
Sydney Kingsford Smith
Tue 3/10
5:50 pm-3:28 pm
2 stops37h 38m
$1,141
Showing 1-10 of 42 results
Best time to book a flight from St. Louis to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from St. Louis with our price prediction graph.
STL-BNE
STL-MEL
STL-PER
STL-SYD
STL-HBA
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 St. Louis to Australia
STL-AU0
STL-BNE
STL-MEL
STL-PER
STL-SYD
What is the cheapest month to book a flight from St. Louis to Australia?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Australia (average of $653). Flying from St. Louis to Australia in July is currently the most expensive (average of $1,239). 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 13, 2026.
Read reviews from past customers who have flown Fiji Airways, Qantas Airways, and United Airlines from St. Louis to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.5
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.5
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Comfort
8.0
Crew
8.5
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.5
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Comfort
8.0
Crew
8.5
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.5
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Comfort
8.0
Crew
8.5
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.5
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Comfort
8.0
Crew
8.5
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.5
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Comfort
8.0
Crew
8.5
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.5
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis 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 St. Louis to Australia by cabin class
Find flights from St. Louis to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Australia flights
Browse other St. Louis and Australia flight options. Last updated on February 13, 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 5 airlines flying from St. Louis to Australia
Discover the top 5 airlines that operate flights from St. Louis 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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$608 | Average$1,250 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$975 | Average$1,302 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,027 | Average$1,430 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,078 | Average$1,386 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,132 | Average$1,268 | FlexibilityNo cancel fee | On-time74% |