Nonstop from George Bush Intercontinental to Sydney Kingsford Smith: distance, flying time, which airlines fly it and how often.
Distance
8,597 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 IAH to SYD fares by month.
The closest airport to the Galveston cruise terminal is Hobby (HOU), about 42 miles away. See how it compares with IAH on cost, time and flight options.
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.
About 17h 08m gate to gate for the 13,836 km (8,597 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
United Airlines, with about 1.1 flights a day between them in our data (AeroDataBox, November 2026).