And it will probably be completely full, so be on time to get the good seats. If the return flight is overbooked and you are in economy there will be a chance to get an upgrade at the gate as it will usually be chaos then with lots of people being reseated and boarding cards flying around.
Enjoy Miami and of course MIA
, which is my favorite airport with lots of colorful people and planes.
Never be afraid of what you like. (Miles Davis)