Costa Diadema sails 2 nights from Barcelona, Spain, departing September 21, 2026, with 2 ports of call and no sea days. Operated by Costa Cruises. The lowest fare we found today is 59 € per person, on the Germany market. 3 of the 3 markets we track currently list this sailing. Over the last 400 days this market's fare has ranged from 59 € to 119 €.
To book at another market's price, use a VPN or proxy for that market. Otherwise, the cruise line may redirect you to your home market and show different pricing.
Track the lowest available price over time