Originally Posted by
Weez_1000
How does that work with customs?
Not sure I understand your question. You clear US customs at the first point of entry, before catching a connecting flight. HKG-EWR-YYZ would require that you claim your bags at Newark, clear customs, then recheck for the flight to YYZ. Failing to show up for the final leg doesn’t do anything to the rest of the ticket. You just clear customs at EWR, then leave the airport.