I traveled to Puerto Rico 3 years ago with just my foreign passport, and I didn't have a problem

There was no customs check, it's the same just when you travel to any other US state

Yes, there is a custom check at St. Thomas and you will be asked what your status in the US is. I was there 3 wks ago. Not sure how that works with a pending case, please ask your lawyer if you have one.

@Ad Add so, you have a GC and you had no issues?

@Ad Add what kind of questions were you asked?

@Mrkvica M. Yes I do, no issues.

@kim John Just your status and your destination going forward.

@Ad Add but we don't have GC, so that's why OP asked that.

I'd love to know the procedure as well for USVI.

@Mi Sto my lawyers were scaring me todays saying they be custom in Puerto Rico? but no I can fly just with my id?

@nkr tt yes, puerto rico is US teritory, when i went to puerto rico i was with expired visa, i just showed my foreign passport for identification and theres no customs or border patrol. My friend who also was undocumnted went to puerto rico 4 times no problems, but again do your own research.