Originally Posted by
dhuey
Excellent advice, though I wonder if the checked bag complicates this. I sense they would balk at having your bag go LAX-SFO-LHR while you go LAX-LHR. Maybe our friend should check the status of LAX-SFO immediately before checking in at LAX. If there is any significant delay, make the inquiry about switching to the nonstop before handing over the bag.
That's exactly what I meant, in less detailed language
Also, if arriving LAX prior to an earlier LAX/SFO that you can make, see if they'll put you on that.