Fares per person start at €535 on AIDAdiva and €549 on AIDAcosma. AIDAcosma is the cheapest per night, at €69 per person. AIDAcosma is the bigger ship, carrying 5,400 guests to 2,050. AIDAdiva has the fewest guests per crew member, at 3.5 to 1. AIDAcosma is newer, built in 2021 against 2007, though AIDAdiva was refurbished in 2025.
