Originally Posted by KathyMoore
Are passengers REQUIRED to bring their U.S. passports
on the [ ] flights between HNL and GUM? Do they have to go through immigration control at either HNL or GUM?
On the non-stops, a certified copy of a U.S. birth certificate will also suffice, though CBP will encourage you to get a passport next time. I have never taken the Island-Hopper.
