Published Monday, 28 October 2013
The airport, previously known as Aldergrove, became Northern Ireland's main hub for civilian flights when it was opened in 1963 by HRH The Queen Mother.
In the five decades since it has welcomed everyone form pop stars to presidents and has grown to carry some four million passengers each year.
Transport Minister Danny Kennedy was at Belfast International on Monday as it unveiled a special 50th anniversary exhibition in the landside departures area.
It includes collection of photographs and airport memorabilia charts the history of the airport.
The UUP minister said: "The impressive photographic exhibition records some of the key moments in the first 50 years of its life, and shows just how important a role it plays in the economic life of Northern Ireland.
"I want to wish the airport every good fortune and look forward to assisting it as it goes about building a more extensive route network, increasing passenger choice and attracting new carriers to the region".
Former operations manager Dick Spencer, who was also in attendance, told UTV how the airport used to be all those years ago.
"When you first came up here, you could just walk straight in and it was wide open, in fact it was very wide open," he explained.
"The check in desk for British Airways, the baggage went out through a hole to the aircraft and the girls that used to sit there were absolutely frozen!"
© UTV News