Originally Posted by
enzian
I see now they were trying for the BA lounge at the S gates (international gates), so BA rules apply? They should have just gone to the AS lounge in the newly-refurbished N terminal, which is all Alaska flights.
Yes so normally someone with oneworld status on a oneworld flight can get access in to a BA lounge. But as noted by
cws, for US lounges in particular BA tends to restrict access to their own passengers due to capacity limitations.