We have arranged our own air because we couldn't fly from nearby with the cruise line. We only have transfers from the hotel (night before) to the ship but not back to the airport after the cruise. I usually always book airfare thru RCCL...so I'm not used to this.
1) Will there be lots of taxi's lined up when we disembark back in Miami.
2) How much is it per person back to Miami International??
Yes and it should be $18-$20 per taxi. Pay once you get OUT of the taxi when you arrive at the airport and your bags have been taken out of the taxi. This prevents anyone from demanding more and keeping you or your luggage 'hostage' if you don't agree to pay more. It has happened once that I know of.