Sydney is Australia's largest city, with about 5.6 million residents and a harbour-centred layout. Its single main airport sits about 9 km south of the city centre and is linked to Central station by train. Seasons are reversed from the US, so December to February is summer.
Checking today’s fares with the airlines.
6 miles (9 km) from the city centre. 42.5 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Train | Sydney Trains T8 Airport & South Line from the International or Domestic Airport station to Central | about 13m | about A$21-22 to Central including the airport station access fee, by Opal or contactless card |
US citizens need a valid passport and an approved Electronic Travel Authority (ETA) or visa to enter Australia for tourism.
An ETA allows stays of up to 3 months per visit and multiple entries over 12 months. It can be requested through the official Australian ETA app for a small service charge, and the US State Department notes it is for tourism or business stays under 90 days. Apply before you fly, ideally before booking nonrefundable travel.
Sydney has warm to hot summers from December to February and mild winters, with average highs of 18 to 19 C (about 64 F) in June and July. Spring and autumn offer comfortable temperatures.
Busiest: Dec-Feb. Quieter shoulder season: Mar-May, Sep-Nov.
| Month | Avg high | Avg low |
|---|---|---|
| Jan | 81°F (27°C) | 68°F (20°C) |
| Feb | 80°F (27°C) | 68°F (20°C) |
| Mar | 78°F (26°C) | 65°F (18°C) |
| Apr | 74°F (23°C) | 60°F (16°C) |
| May | 70°F (21°C) | 54°F (12°C) |
| Jun | 65°F (18°C) | 50°F (10°C) |
| Jul | 64°F (18°C) | 48°F (9°C) |
| Aug | 67°F (19°C) | 49°F (9°C) |
| Sep | 71°F (22°C) | 54°F (12°C) |
| Oct | 74°F (23°C) | 58°F (14°C) |
| Nov | 76°F (24°C) | 62°F (17°C) |
| Dec | 78°F (26°C) | 65°F (18°C) |
Sydney is served by Sydney Kingsford Smith Airport (SYD). Sydney Kingsford Smith Airport handled about 42.5 million passengers in 2025.
US citizens need a valid passport and an approved Electronic Travel Authority (ETA) or visa to enter Australia for tourism. An ETA allows stays of up to 3 months per visit and multiple entries over 12 months. It can be requested through the official Australian ETA app for a small service charge, and the US State Department notes it is for tourism or business stays under 90 days. Apply before you fly, ideally before booking nonrefundable travel.
Sydney has warm to hot summers from December to February and mild winters, with average highs of 18 to 19 C (about 64 F) in June and July. Spring and autumn offer comfortable temperatures.
Sydney Trains T8 Airport & South Line from the International or Domestic Airport station to Central, about 13 minutes, about A$21-22 to Central including the airport station access fee, by Opal or contactless card.
Among the cities we cover, Dallas (about 0m), Houston (about 0m), Los Angeles (about 0m) and San Francisco (about 0m) have nonstop service to Sydney as of October 2026.
Sydney uses the Australian dollar (AUD).
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.