Incredible What Is Online Check In For Carnival Cruise References. Web when it comes to boarding a cruise ship with carnival, guests are typically allowed to embark on their voyage between the hours of 11:30 a.m. U.s department of homeland security (dhs) requires carnival cruise line to submit a final departure manifest with.

Really hoping to get early boarding time for next cruise. Cruise terminal information and parking. I was told that the earlier you complete check in, the more likely you are to.