Costa Diadema Cruise Schedule 2026
Complete list of Costa Diadema itineraries, sailing dates & departure dates
Browse the complete Costa Diadema cruise schedule for 2026, featuring 6 sailing dates across 6 itineraries to destinations including Northern Europe, Western Europe & Western Mediterranean, Western Mediterranean. All departure dates are from Copenhagen, Denmark, with itinerary durations ranging from 7 to 12 nights. The average price across all upcoming Costa Diadema sailings is currently $156 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.
Costa Diadema 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 will show a full list of all upcoming itineraries. By Itinerary will display the cruise route, with map, along with the available dates for that particular itinerary.
September, 2026
More about Costa Diadema
Costa Diadema Cruise FAQ
Frequently asked questions about Costa Diadema cruises
Costa Diadema has 6 upcoming sailings scheduled in 2026, with itineraries ranging from 7 to 12 nights.
Costa Diadema departs from Copenhagen, Denmark. All 6 upcoming itineraries on Costa Diadema sail from this port.
Costa Diadema offers 6 distinct itineraries to destinations including Northern Europe, Western Europe & Western Mediterranean, Western Mediterranean. Itinerary durations range from 7 to 12 nights.
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.