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 London to Vientiane take?

Flight time depends on the exact route and aircraft, but at roughly 9,317 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: London to Vientiane

9,317

Kilometres (km)

5,789

Miles (mi)

5,031

Nautical miles

About this flight distance

The great circle distance from London to Vientiane is approximately 9,317 km. The typical flight time is 11h 27m.

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

Nearby airports

Near London

London City Airport (LCY)36 km
London Gatwick Airport (LGW)41 km
London Luton Airport (LTN)45 km

Near Vientiane

Udon Thani Airport (UTH)71 km

Frequently Asked Questions

The great-circle distance from London to Vientiane is approximately 9,317 km (5,789 miles).