My husband and I are US citizens, traveling to Barcelona. We will have a 7.5 hour layover at LON, and we were wondering if we can leave the airport to see his aunt (she would come pick us up and show us around a bit). We are traveling Virgin Atlantic from SFO-LON, then British Airways from LON-BCN. I'm planning that the luggage should be checked all the way through to BCN in SFO.
The plan in LON is to just go through immigration as if we were staying longer with just our carryons, see the sights, then get back a few hours before the next flight. I've read that some people have been told that Virign Atlantic says you can't leave the transit area? Has anyone done this recently (within the last year)?