Originally Posted by
Ldnn1
Note that your outbound and return flights may have been booked in different fare classes. If your return is booked in O, Q or G booking class, then you won't be able to upgrade with avios.
Thank you. The return flight is class L. So, i guess, I should be able to upgrade. Strange that it won't let me do it online. It just comes up with this message: Sorry, it is not possible to change this booking on ba.com. Please call your local British Airways office to change this booking.
I did have the option to upgrade it beforehand. But ever since i upgraded the first leg, the option disappeared.