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 Belfast take?

Flight time depends on the exact route and aircraft, but at roughly 17,119 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 Belfast

17,119

Kilometres (km)

10,637

Miles (mi)

9,244

Nautical miles

About this flight distance

The great circle distance from Sydney to Belfast is approximately 17,119 km. The typical flight time is 20h 38m.

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

Nearby airports

Near Belfast

George Best Belfast City Airport (BHD)23 km
City of Derry Airport (LDY)74 km
Campbeltown Airport (CAL)93 km

Frequently Asked Questions

The great-circle distance from Sydney to Belfast is approximately 17,119 km (10,637 miles).