
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,101 (Air Canada) |
One-way from | $525 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $1,254 |
Fly from
Fly to
Route
Depart
Return
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 5/31
4:48 pm-7:00 am
2 stops23h 12m
Sydney Kingsford Smith
Tue 6/23
10:20 am-6:17 pm
1 stop22h 57m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 9/13
4:40 pm-7:00 am
2 stops23h 20m
Sydney Kingsford Smith
Tue 10/6
11:20 am-5:53 pm
1 stop22h 33m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 9/14
3:10 pm-7:00 am
2 stops24h 50m
Sydney Kingsford Smith
Wed 9/30
10:20 am-5:53 pm
1 stop22h 33m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 9/13
4:40 pm-7:00 am
2 stops23h 20m
Sydney Kingsford Smith
Wed 9/30
10:20 am-5:53 pm
1 stop22h 33m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 9/13
4:40 pm-7:00 am
2 stops23h 20m
Sydney Kingsford Smith
Sat 10/3
10:20 am-5:53 pm
1 stop22h 33m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 5/2
8:30 am-6:55 am
1 stop31h 25m
Sydney Kingsford Smith
Sat 5/16
10:20 am-6:22 pm
1 stop23h 02m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 4/19
6:21 am-7:05 am
1 stop33h 44m
Sydney Kingsford Smith
Sat 4/25
9:20 am-8:54 pm
2 stops26h 34m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 4/19
11:42 am-6:50 am
2 stops28h 08m
Sydney Kingsford Smith
Sat 4/25
9:15 am-3:01 pm
2 stops20h 46m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 4/27
2:40 pm-10:40 am
3 stops29h 00m
Sydney Kingsford Smith
Mon 5/4
11:55 am-8:39 am
3 stops35h 44m
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 5/9
3:38 pm-8:00 am
2 stops25h 22m
Sydney Kingsford Smith
Wed 5/13
12:00 pm-5:21 pm
1 stop20h 21m
Currently, August is the cheapest month in which you can book a flight from St. Louis to New South Wales (average of $649). Flying from St. Louis to New South Wales in June is currently the most expensive (average of $1,281). 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.
Entertainment
Food
Overall
Comfort
Crew
Boarding
Reviews
Anonymous,Feb 2026
SFO - NAN
Entertainment
Food
Overall
Comfort
Crew
Boarding
Reviews
Anonymous,Feb 2026
SFO - NAN
Entertainment
Food
Overall
Comfort
Crew
Boarding
Reviews
Anonymous,Feb 2026
SFO - NAN
Entertainment
Food
Overall
Comfort
Crew
Boarding
Reviews
Anonymous,Feb 2026
SFO - NAN
Entertainment
Food
Overall
Comfort
Crew
Boarding
Reviews
Anonymous,Feb 2026
SFO - NAN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,094 | Average$1,305 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,132 | Average$1,222 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,144 | Average$1,511 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,233 | Average$1,497 | FlexibilityNo cancel fee | On-time71% |