Ms Armstrong was speaking after a meeting with management at the airport, alongside her colleagues Stewart Dickson MLA and John Blair MLA, who arranged the meeting in his South Antrim constituency.
“Northern Ireland needs a modern, secure airport in which people can be guaranteed they will be able to navigate quickly and without the regular delays going through security in particular we have seen in recent months. There is no doubt Belfast International Airport has not been that in recent times,” said Ms Armstrong.
“This meeting was a chance to put across the frustration many members of the public have felt while using the airport during that time. We were told by management they are fully committed to tackling the problems and investment has been put into dealing with the security issues in particular.