Arriving Sep 25 on KLM 1638 from Florence due in to Amsterdam @ 0855. Connecting to KLM 605 to SFO due to depart 0950. Flightaware shows KLM 1638 +/- 5 minutes 90% of time. Is it really reasonable to think we can realistically make this flight with passport check etc? Thanks for any advice on this. California bound.