I am traveling to Montenegro from Dublin and I need to transit through London. I have a biometric Macedonian passport and an Irish visa.
Do I need a visa to transit through London? I'm not sure if I qualify for 'Irish biometric visa'
An Irish biometric visa is marked ‘BC’ or ‘BC BIVS’ in the ‘Remarks’ section. If you have that then you do not need a visa to transit.
If you don't have that you will need a visa.