Originally Posted by
ScienceTeacher
You are right! I somehow still forget this rule.
OT: Not to detract too much, but when doing NBO-LHR on BA recently, with a LHR-JER connection later that day on a separate ticket, and checked bag, without my offering it was through checked. I assume FLY did this. Would it also automatically pick up the OP's carrier, A3, or just BA,OW,IAG or the like?
Will not ba to a3
It does not often work for ba to ba, you got lucky