Originally Posted by
UpUpUp
I see I missed the BA option initially. So in my return flight, I've got my BA number on the BA manage booking page, and I also added the BA number on the Alaska site. This should now work I assume?
Yes it should do, the AS side is more relevant since AS (and AA) are on a different IT system to BA and most European airlines. But if you put an AS number in, the danger is that it may take priority over the BA number unfortunately.