Rhonda wood

Question: leaving March 17th on Harmony. I just did the online check in and the earliest time slot to board the ship was 1pm. Out flight lands at 10am and we already have the shuttle transfer scheduled. I called RCI and they said we can not get an earlier time than 1pm. So, if we go straight to the ship at 10am will they go ahead and let us on earlier than 1pm?