Originally Posted by andrzej
My first post:
Puerto Ricans are US citizens. Travel between the island and US is no different than travel between Michigan and Indiana, Ohio, etc...
There are NO PASSPORTS OR VISAS required for US citizens or legal aliens.
Again, you still haven't answered whether proof of citizenship (or residency status) is required.
If anyone knows whether it is or not, or whether CBP even checks domestic passengers flying to or from Puerto Rico and the U.S. mainland, it would be useful to have someone state that unequivocally.