Air India, I don't think have operated a "scheduled service".
BAW from EGCC to KLAX was 80+% load factor, then a second LAX started down south.
PIA have two transit/pickups daily JFK westbound and OPRN/OPKC east plus the dedicated OPRN 5 times per week.
BMA started KIAD. Will start ORD soon.During the VC10 days,[3-4 times per week] BOAC [allegedly] said that MAN would NEVER support a daily transat service!
Today, before I left work, the list was
AAL BAW BMI ACA COA DAL USA [ALL schedele]
MON BAL AIH TSC CMM AMM [charters]