Fares per person start at €425 on AIDAperla and €549 on AIDAcosma. AIDAcosma is the cheapest per night, at €69 per person. AIDAcosma is the bigger ship, carrying 5,400 guests to 3,286. AIDAcosma has the fewest guests per crew member, at 3.6 to 1. AIDAcosma is newer, built in 2021 against 2017, though AIDAperla was refurbished in 2022.
