Fares per person start at €549 on AIDAcosma and €625 on AIDAstella. AIDAstella is the cheapest per night, at €57 per person. AIDAcosma is the bigger ship, carrying 5,400 guests to 2,194. AIDAcosma has the fewest guests per crew member, at 3.6 to 1. AIDAcosma is newer, built in 2021 against 2013, though AIDAstella was refurbished in 2023.
