Glad to see everyone was watching over me that day!
I usually see planes landing from the south on those parallel runways whose approach goes over the San Mateo Bridge.
However today, our plane landed on the set of runways that domestic flights usually depart from, i.e. we made a sharp turn right while flying south over Alameda.
On the ground I can tell when this flight path is being used, because the planes come down relatively low over Concord/Martinez (usually thru low clouds and fog/rain).
The one time I've flown the bad weather approach into OAK, we followed the same path as the WN plane I saw below us. And let me tell you, it was quite a roller-coaster ride too.
BTW, there couldn't have been more than 100 people total on the BA flight that day, so I got an entire row in the middle section to sleep in for a couple of hours. The flight from Cape Town the night before was packed, and miserable as hell.