Cheap flights from St. Louis, MO to Sydney, Australia
Flights starting at $576. Choose between Alaska Airlines, Jetstar Airways, or Qantas to find the best price.
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Tips to know when travelling to Sydney
Cheapest one-way trip | $576 |
---|---|
Cheapest round-trip | $1,599 |
Includes rare itinerary | |
Most popular airline | Alaska Airlines |
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The most popular airlines for this route are Alaska Airlines, Jetstar Airways, Qantas, United Airlines, and Air Canada. St. Louis and Sydney have 209 direct flights per week. When you arrive at Sydney, consider visiting Sydney Opera House, and Blue Mountains.
Check-in for a flight from St. Louis to Sydney
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Jetstar Airways | JST | JQ | No | 0 0 |
Qantas | QFA | QF | Yes | 0 0 |
United Airlines | UAL | UA | Yes | No |
Air Canada | ACA | AC | Yes | No |
Weather in Sydney
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 26°C | 20°C |
February | 25°C | 20°C |
March | 24°C | 19°C |
April | 22°C | 16°C |
May | 19°C | 13°C |
June | 17°C | 11°C |
July | 16°C | 10°C |
August | 17°C | 10°C |
September | 20°C | 12°C |
October | 21°C | 14°C |
November | 23°C | 16°C |
December | 24°C | 18°C |
14 day forecast
Frequently asked questions
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