Originally Posted by
spanishflea
You have to pick up your luggage at SAN anyway, so you are not gaining anything there. If you miss your connection on single tickets, I would expect AS to be reasonably sympathetic in re-booking you onto the next flight. So I’d quite happily book these as separate tickets and take the savings.
Might be safer to book the later SAN-SFO flight, and stand by (or do a confirmed change) for the earlier flight if BA arrives on or close to schedule. During March, the later flight (which is on a regional jet) departs just 80 minutes after the earlier one (which is on a 737).