The majority of the ECA flights into Belfast are charters on behalf of Olympic Holidays, HER, LCA and PFO.
If Olympic Holidays are selling well from BFS, which they appear to be, will Olympic not just try and source alternative capacity from another carrier. There may not be a loss, or substancial loss, in capacity overall, should this occur.
If they do not source an alternative carrier for Cyprus and Crete, they may as well pull their tour operator programme completely from Northern Ireland, as all that would be left is a small allocation on the TCX Heraklion. The Cyprus holidays from Belfast are still currently on sale.