Welcome aboard, Gabriela! If this is your very first cruise with Captain Mickey, I can't wait for you to experience this magical vacation!
You didn't mention on which ship you'll be sailing, or from which port you'll be departing. I did notice in your notes that you'll be arriving on December 19. I looked through the cruise itineraries and while I don't see one departing on the 19th, I do know that the
Disney Magic sets sail the following day, December 20th from Miami. I'm guessing that is the sailing you'll be enjoying! If that is the case, the All Aboard time for guests on the Magic out of Miami is 4:00 p.m. That being said, I don't recommend showing up at 4:00. In fact, you'll want to be sure you arrive much earlier, so you do not miss the ship. During your online check-in, which begins 75 days prior to departure for first time guests, you'll get to choose from the available
Port Arrival Times. That will be when Disney expects you to arrive at port. You'll board the ship shortly after.
If you're flying in from Argentina, you may consider flying in the day prior and staying at one of Disney Cruise Line's partner resorts (Conrad Miami or Marriott Stanton South Beach) which then offer transportation from the airport to the resort and from the resort to the port, for an additional cost. It's so easy to let Disney do the driving! You can make these reservations through your travel agent or with Disney Cruise Line's agents at (800) 951-3532.
If I guessed the wrong ship and departure port, check out your itinerary for the exact All Aboard time that first day. Boarding usually begins around 11:30 or noon, and last calls for guests to be aboard are usually 4 p.m. for Miami, 3:45 p.m. for Port Canaveral, and 3:30 p.m in Galveston.
Have fun planning, Gabriela!
Marcy