Originally Posted by sefrischling

I fly through Heathrow on a somewhat regular basis. I either fly in for work or fly through in transit.

On a number of occaisions the Immigration Officer has scribbled "In Transit" or "In Transit 1" (I am going to T1), etc and that makes sense. Tonight flying from CDG through LHR (10hr layover) the Office wrote "W" and circled it. I watched her go over it to make sure it was very dark and bold on the top of the stamp.

What the hell does a circled "W" mean on a stamp? Am I now on a watch list because I fly through LHR often? I am sure there are others who come throug here considerably more often than I do.

For my work I know I do not need a Visa , to visit I do not need a Visa (I am an American) and I certainly do not need a Visa to change flights.

Any idea what this means on the stamp?

Originally Posted by jpmcdonough

I am curious as to why you went through Immigration at all. Is that a requirement? When flying through the UK from the states or from France we follow the 'connections' signs straight to duty free and don't enter the UK at all.