Originally Posted by
Ivstan14
The direct answer to your question is no. The FF# gets applied to the ticket, not the segment. But the whole premise of your question is flawed because SQ711 will absolutely eaen Alaska credit assuming you are in an eligible fare bucket. What made you believe otherwise?
Not OP but I believe this is a fairly recent change by AS to expand the eligible SQ flight number range. Regional SQ flights did not earn AS credit (RDM or EQM) as recently as November of last year.