How far is Belfast from Dublin?

The distance between Dublin (Dublin Airport) and Belfast (Belfast International Airport) is 86 miles / 138 kilometers / 74 nautical miles.

The driving distance from Dublin (DUB) to Belfast (BFS) is 107 miles / 172 kilometers, and travel time by car is about 1 hour 59 minutes.

Distance from Dublin to Belfast

There are several ways to calculate the distance from Dublin to Belfast. Here are two standard methods:

Vincenty's formula (applied above)

• 85.527 miles
• 137.642 kilometers
• 74.321 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 85.442 miles
• 137.505 kilometers
• 74.247 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Dublin to Belfast?

The estimated flight time from Dublin Airport to Belfast International Airport is 39 minutes.

What is the time difference between Dublin and Belfast?

There is no time difference between Dublin and Belfast.

Flight carbon footprint between Dublin Airport (DUB) and Belfast International Airport (BFS)

On average, flying from Dublin to Belfast generates about 38 kg of CO2 per passenger, and 38 kilograms equals 83 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Dublin to Belfast

See the map of the shortest flight path between Dublin Airport (DUB) and Belfast International Airport (BFS).

Airport information

Origin	Dublin Airport
City:	Dublin
Country:	Ireland
IATA Code:	DUB
ICAO Code:	EIDW
Coordinates:	53°25′16″N, 6°16′12″W

Destination	Belfast International Airport
City:	Belfast
Country:	United Kingdom
IATA Code:	BFS
ICAO Code:	EGAA
Coordinates:	54°39′27″N, 6°12′56″W