Hi there, A friend and his family are flying from LHR to SIN for Christmas, but on his return flight, the flight number has changed. The current SQ318 will change to SQ308 for the W06/07 period, can anybody tell me why this has changed flight number, many thanks if you can help me. All 3 outbound SQ flight from LHR, the SQ317, SQ319 and SQ321 remains unchanged. Regards from Timetable.