3 hrs
About 3 hours.
About one hour.
It will take around 5 hrs.
14 hours
About two hours
3hrs 15 minutes approximately
about 26 hours, depending on connections and stopovers
18hours
It depends how long you stay in Hong Kong.
You can't fly directly. It would have to be Sacramento to LA. LA to London. London to Edinburgh. Edinburgh to St Andrews by bus or train.
You can't travel from Edinburgh to Belfast by train because Belfast is in Ireland which is an island. The easiest way is to fly.