How is the flight distance measured?

Flight distances are measured as the great-circle (straight-line) distance between airports. Actual flight paths may be slightly longer due to air traffic routing and weather avoidance.

How long does the flight from Houston to Sydney take?

Flight time depends on the exact route and aircraft, but at roughly 13,836 km the typical non-stop flight takes 1–10 hours. Check the flight duration page for the exact average.

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Flight Distance: Houston to Sydney

13,836

Kilometres (km)

8,597

Miles (mi)

7,471

Nautical miles

About this flight distance

The great circle distance from Houston to Sydney is approximately 13,836 km. The typical flight time is 16h 46m.

This is the shortest possible distance between the two cities as the crow flies. Real flight paths are often slightly longer due to air traffic control routing, weather, and airspace restrictions.

Related route pages

→Direct flights Houston to Sydney →Flight duration Houston to Sydney →Cheapest day to fly Houston to Sydney →Flights Houston to Sydney

Nearby airports

Near Houston

William P Hobby Airport (HOU)38 km

Frequently Asked Questions

The great-circle distance from Houston to Sydney is approximately 13,836 km (8,597 miles).