Why Westbound Flights Take Longer: The Jet Stream, With Examples
Westbound flights take longer because they fly into the jet stream's headwinds. See how it works, real route times, and when the gap is biggest.
Nonstop from Tan Son Nhat International to Sydney Kingsford Smith: distance, flying time, which airlines fly it and how often.
Distance
4,254 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Fares found in recent searches load here. You can also compare SGN to SYD fares by month.
About 8h 49m gate to gate for the 6,846 km (4,254 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Jetstar, VietJet Air and Vietnam Airlines, with about 2.4 flights a day between them in our data (AeroDataBox, November 2026).