Originally Posted by eefor jfp

Can someone explain to me how pre-clearance saves time if it involves an extra stop in Ireland? Looking at the BA timetable it says that the 0945 LCY flight arrives at JFK at 1355. The 0940 flight from LHR arrives at 1210. That's 1:45 minutes longer than if you just cleared customs at JFK to be at the same "door-to-door" overall time frame (OK, maybe not counting that LCY check-in is faster than LHR check-in). Plus you still have to wait for your bags (if you check them) with the LCY flight even if you don't have to deal with immigration.

Maybe having global entry means that I am jaded but does it really take someone 1:45 to clear US immigration at JFK?