Costa Diadema
Cruise Schedule
2026
Complete list of Costa Diadema cruises with departure dates, itineraries, and cruise price tracking.
Browse the complete Costa Diadema cruise schedule for 2026, featuring 5 sailing dates across 5 itineraries to destinations including Western Europe & Western Mediterranean, Western Mediterranean. All departure dates are from Copenhagen, Denmark, with itinerary durations ranging from 10 to 12 nights. The average price across all upcoming Costa Diadema sailings is currently $153 per passenger, per night for the inside cabin type.
Costa Diadema Price Tracker
Cruise pricing trends across all upcoming sailings
The chart below tracks pricing for Costa Diadema sailings by departure date. The solid line shows the actual price for each sailing, while the dashed line indicates the average. Use the filters to switch between cabin types and itinerary durations. Click any individual Costa Diadema itinerary below to track the cost of that cruise.
Sailing Dates & Itineraries
Complete cruise schedule with departure dates
The list below represents all cruise options available on the Costa Diadema. Select from the options below to view cruises by date or by itinerary. By Date shows a full list of all upcoming itineraries. By Itinerary displays the cruise route, with map, along with the available dates for that particular itinerary.
More about Costa Diadema
Explore all decks, staterooms, venues, and where to find every onboard space.
Compare inside, oceanview, balcony, and suite categories with layouts and amenities.
Tonnage, capacity, dining, activities, and the latest from the ship's leadership.
Current promotions, price drops, and the lowest fares across upcoming sailings.
Frequently asked questions
Everything you need to know about booking and tracking Costa Diadema sailings.
How many cruises does Costa Diadema have in 2026?
Costa Diadema has 5 upcoming sailings scheduled in 2026, with itineraries ranging from 10 to 12 nights.
Where does Costa Diadema depart from?
Costa Diadema departs from Copenhagen, Denmark. All 5 upcoming itineraries on Costa Diadema sail from this port.
What itineraries does Costa Diadema offer?
Costa Diadema offers 5 distinct itineraries to destinations including Western Europe & Western Mediterranean, Western Mediterranean. Itinerary durations range from 10 to 12 nights.
What is the cheapest cruise on Costa Diadema?
The lowest starting price for an upcoming Costa Diadema cruise is $118 per night for an inside cabin. Prices vary by sailing date, cabin type, and availability.