FlyerTalk Forums - View Single Post - UA says Passport Required for Puerto Rico
Old Sep 2, 2018 | 10:04 am
  #38  
joe_miami
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Join Date: Oct 2017
Location: Miami, Florida
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Originally Posted by Aussienarelle
Would not have occurred to me to take my passport with me to a US territory.
Strictly speaking, as a matter of law, foreigners are required to carry proof of legal presence at all times:

https://www.uscis.gov/ilink/docView/...-0-0-8289.html

I haven't flown to/from P.R. in a long time, but I'm guessing ICE pays closer attention to those flights, since it's not uncommon for people to enter P.R. illegally.
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