Dublin Airport is the main international airport of Ireland. In 2013 20.2 million passengers passed through the airport. The airport serves as the headquarters of Ireland’s flag carrier Aer Lingus and also Europe’s largest low-cost carrier Ryanair.
The construction of a new civil airport began in 1937. By the end of 1939 a grass airfield surface, internal roads, car parks and electrical power and lighting were set up. The inaugural flight from Dublin took place in 1940.
Source: Wikipedia