Layover? Why not do a little shopping? Miami international is just minutes away from the Airport and offers discounts for tourists, pick up a coupon book at the Guest Services Booth.
This was the longest walk to passport control and what seems to be the longest line I've ever seen. Green Card holders go to the same line as visitors. If no Global Entry or no citizen - get ready...
Avoid traffic, & take the Metrorail to the airport, just like you'd take the subway to JFK Airport in New York !! Coming 2012. The biggest favor Miami will do for both its citizens & tourists !!
This airport is not for the faint of heart, the disabled, or anyone running late. Expect a 20m wait minimum…regardless of your status, TSA Pre-Check, etc.
Watch what line you get in during customs check. The customs officer will pull a Jack Bauer and interrogate the heck out of you. I hate this airport. Don't fly AA either. They will f@ck up everything.