Originally Posted by
Roger
SFO in October could be a little damp. I see similar fares (£330 with BA, £305 *A) in September, so this could be an unplanned birthday treat.

Ummm, October? San Francisco damp? Doubtful. Rain usual doesn't start until November, if that.
UA and BA might be matching prices to the newly Norwegian Airline flights starting in May between OAK and Europe.