The BCAL will have been GLA-NCL-AMS and the BOH would have been NCL-MAN-BOH with CWL and BHX in the mix on certain days - Dan Air had an extensive 'bus stop' domestic network on 748's (Avro not Boeing....), so not quite as weird as it looks.
Also there was a strict split between scheduled and charters, and never the twain were mixed....