>>4971213

AK

HI

USVI

PR

GUAM

>>4971261

U.S. Citizens and Lawful Permanent Residents (LPR's) who travel directly between parts of the United States, which includes Guam, Puerto Rico, U.S. Virgin Islands, American Samoa, Swains Island and the Commonwealth of the Northern Mariana Islands (CNMI), without touching at a foreign port or place, are not required to present a valid U.S. Passport or U.S. Green Card.

https://help.cbp.gov/app/answers/detail/a_id/980/~/needing-a-passport-to-enter-the-united-states-from-u.s.-territories

You went on a cruise ship. Different situation.

>>4971294

Depends on whether they have more than one passport.

>>4971342

That was a requirement of the airline. Not based on US law.

>>4971349

Last time I checked, yes, although way back when I was in Dago, it wasn't a requirement to cross into TJ.