Fares per person start at €510 on AIDAmar and €549 on AIDAcosma. AIDAcosma is the cheapest per night, at €69 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 2012, though AIDAmar was refurbished in 2026.
