well with ba it depends on your fleet,
lgw (gatwick)
nightstop in blq, fco summer only, pfo summer only, agp, tls, mrs, ams, waw, jer, man, edi, and gla
long haul, anu, (uvf in the winter), bgi, kin, mco, tpa, atl, bda
lhr ef, (heathrow eurofleet)
n/s in more or less every destination
lhr ww
see the route network
hope this helps