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 Sydney to Vientiane take?

Flight time depends on the exact route and aircraft, but at roughly 7,734 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: Sydney to Vientiane

7,734

Kilometres (km)

4,806

Miles (mi)

4,176

Nautical miles

About this flight distance

The great circle distance from Sydney to Vientiane is approximately 7,734 km. The typical flight time is 9h 35m.

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 Sydney to Vientiane →Flight duration Sydney to Vientiane →Cheapest day to fly Sydney to Vientiane →Flights Sydney to Vientiane

Nearby airports

Near Vientiane

Udon Thani Airport (UTH)71 km

Frequently Asked Questions

The great-circle distance from Sydney to Vientiane is approximately 7,734 km (4,806 miles).