EK-LHR-LGW-GLA-MAN-B
For your infomation the B767 does not set foot in GLA or even EDI for that matter.
It only fly's out of LGW and has one split load through MAN on a Sunday to CUN.
Unless the Flying programme has changed in the last couple of months, the only GLA to SFB is on a Saturday with the A330.
The only other flight as reported is the A320 on a "W" from EDI on Saturday to PMI.