I would appreciate any advice. I have a flight coming up London to Jamaica via Miami with an overnight stop in Miami. Can I book my luggage all the way through to Jamaica? Do I still have to pick up my luggage and check in again at Miami? If so can I check in on the day I arrive at Miami? My Miami to Jamaica flight is the next day (about 20 hours later). I'd like to avoid taking a suitcase to my hotel in Miami for the overnight stay if I can avoid it.