Puerto Rico is one of the easiest locations to vacation if you are an American. Not only is it close in terms of distance, you don't need a passport or really anything more than your license and they use the US Dollar as their currency (even though they sometimes call them pesos).
There are 17 airports into Puerto Rico. When you choose your resort, try to pick an airport in close range to eliminate your taxi costs. Your estimated travel time from New York City is approximately three and a half hours and travel time from Europe is around eight hours. If you are in Miami, you have it easy—it is a quick two and a half hour plan ride!
*Puerto Rico is on AST (or Atlantic Standard Time) which is Eastern Standard time plus one hour.