Originally Posted by
GUM_elite
To add to the speculation of the flight's origin, the pax could have, on outbound, flown mainland-HNL-GUM-NRT/HKG/MNL/KIX or whatever. And the return asia-mainland would be the first true TPAC not subject to FAA IDB requirements.
That's a stretch my cat would admire.
It would require a carrier other than UA for the mainland-HNL leg, then a carrier from the western Pacific (or possibly HA) for the other "half-PAC", then a UA TPAC return. That's probably going to be a very expensive ticket.
It's far more likely, IMO, that the nephew's "encounter" took place in a U.S. airport.
Agree it would be helpful if OP would clarify. ^