Originally Posted by
Hoang Tran
I booked a ticket from SGN to DOH to FRA via Qatar Airways and found out that SGN to Doha actually has a codeshare flight number with BA. Is it possible for me to ask BA to credit SGN to Doha sector as one of the 4 eligible flights requirement for membership?
What is important is the marketing airline (flight number) and operating airline.
That the QR flights also have BA codeshares is irrelevant if you have purchased flights with QR flight numbers on QR operated aircraft.