Speaking of UA
service, when my sis flew to ORD
last year, her flight with UA
on the HKG
leg turned out to be a 22 hour nightmare. A couple of hours into the flight, there was a medical emergency onboard involving an elderly lady & they had to divert to NRT
's Asian hub & nearest airport) and after a few hours on the ground the flight continued its course to ORD
. Nobody was allowed out (I thought that was strange) so at the end of the journey when they finally landed in O'Hare, she was onboard for 22 hours!! I'd go crazy if I was inside a plane for that long.....