Originally Posted by
MKY661
I think they get off and then just go through the transfers area, but I could be wrong on that. I'm sure I've seen a Singapore Transfer sign in the Arrivals Alleyway leading to Passport Control.
I travelled SIN-IAH on this service late last year and all on board who were continuing on to IAH had to deplane, go through a small transit/security area near the immigration hall before going upstairs to the departure lounge and re-boarding a short time later. It was security, but no border checks as we stayed airside.
Was told this also happens in the other direction.