US - Puerto Rico flights?

Question

Hi,

I was just wondering if you have to go through immagration on flights between mainland USA and Puerto Rico.

If so, how long would you need to allow to go through immagration at Miami airport.

Thanks

Answer 1

NO.

There no immigration/customs between US and puerto rico. Since PR is considered part of the US.

Answer 2

PR is considered US Territory so there is no need to go through immigration if you are a US citizen traveling from USA Mainland to Puerto Rico.