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 Belfast to Dublin take?

Flight time depends on the exact route and aircraft, but at roughly 138 km the typical non-stop flight takes 1–10 hours. Check the flight duration page for the exact average.

Voydly

SupportLog in

Search Belfast → Dublin

Compare flights, hotels, cars, and activities for this trip in one place.

Direct flights onlyMy dates are flexible (±3 days)Don't know where yet? Explore everywhere

500+airlines & travel sites compared

1,200+routes tracked

€0booking fees from us

Flight Distance: Belfast to Dublin

138

Kilometres (km)

Miles (mi)

Nautical miles

About this flight distance

The great circle distance from Belfast to Dublin is approximately 138 km. The typical flight time is 39m.

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

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 Belfast to Dublin is approximately 138 km (86 miles).