Costa

Costa Diadema cruises

Find the perfect Costa Diadema cruise for your next trip!

Prices include all applicable taxes and port fees

79 Costa Diadema cruises

Prices include all applicable taxes and port fees

20 Night Ocean Cruises Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Savona (Genoa), Italy
Ports of call:Barcelona, Spain•Malaga, Spain•Cadiz (Seville), Spain•Lisbon, Portugal•Las Palmas, Gran Canaria, Canary Islands•Santa Cruz de Tenerife, Canary Islands•Mindelo, Cape Verde Island•Maceio, Brazil•Bahia de Salvador, Brazil•Rio de Janeiro, Brazil
Sailing dates:November 2, 2026

Bonus Offers:

  • Save $444 per person with this offer
Interior from $2,360 $1,916
View Itinerary

6 Night Ocean Cruises Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Santos (Sao Paulo), Brazil
Ports of call:Rio de Janeiro, Brazil•Bahia de Salvador, Brazil•Fortaleza, Brazil
Sailing dates:April 4, 2027

Bonus Offers:

  • Save $193 per person with this offer
Interior from $1,144 $951
View Itinerary

7 Night North Europe And Fjords Cruise

Costa Diadema
Costa Diadema Great Deal Recommended Cruise
Departing from:Copenhagen, Denmark
Ports of call:Flaam, Norway•Norwegian Sea•Bergen, Norway•Aarhus, Denmark•Kiel, Germany
Sailing dates:May 1, 2027

Bonus Offers:

  • Save $260 per person with this offer
Interior from $1,344 $1,084
View Itinerary

12 Night Ocean Cruises Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Kiel, Germany
Ports of call:Copenhagen, Denmark•Le Havre (Paris), France•Vigo, Spain•Lisbon, Portugal•Cadiz (Seville), Spain•Barcelona, Spain•Marseille, France•Savona (Genoa), Italy
Sailing dates:September 10, 2027

Bonus Offers:

  • Save $313 per person with this offer
Interior from $1,626 $1,313
View Itinerary

14 Night North Europe And Fjords Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Kiel, Germany
Ports of call:Copenhagen, Denmark•Gdynia, Poland•Visby, Sweden•Stockholm, Sweden•Geiranger, Norway•Hellesylt, Norway•Norwegian Sea•Bergen, Norway•Haugesund, Norway
Sailing dates:May 14, 2027

Bonus Offers:

  • Save $513 per person with this offer
Interior from $2,597 $2,084
View Itinerary

20 Night Ocean Cruises Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Fortaleza, Brazil
Ports of call:Praia, Cape Verde•Las Palmas, Gran Canaria, Canary Islands•Casablanca, Morocco•Malaga, Spain•Leixoes (Oporto), Portugal•Vigo, Spain•Le Havre (Paris), France•Dover (London), England•Aarhus, Denmark•Kiel, Germany
Sailing dates:April 10, 2027

Bonus Offers:

  • Save $441 per person with this offer
Interior from $2,291 $1,850
View Itinerary

7 Night North Europe And Fjords Cruise

Costa Diadema
Costa Diadema Great Deal Recommended Cruise
Departing from:Kiel, Germany
Ports of call:Copenhagen, Denmark•Geiranger, Norway•Hellesylt, Norway•Maloy, Norway•Haugesund, Norway
Sailing dates:May 28, 2027

Bonus Offers:

  • Save $281 per person with this offer
Interior from $1,419 $1,138
View Itinerary

10 Night Ocean Cruises Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Kiel, Germany
Ports of call:Copenhagen, Denmark•Le Havre (Paris), France•Vigo, Spain•Lisbon, Portugal•Cadiz (Seville), Spain•Barcelona, Spain
Sailing dates:September 10, 2027

Bonus Offers:

  • Save $271 per person with this offer
Interior from $1,399 $1,128
View Itinerary

4 Night Mini Cruises Cruise

Costa Diadema
Costa Diadema Great Deal Recommended Cruise
Departing from:Savona (Genoa), Italy
Ports of call:Barcelona, Spain•Marseille, France
Sailing dates:October 29, 2026

Bonus Offers:

  • Save $80 per person with this offer
Interior from $421 $341
View Itinerary

7 Night North Europe And Fjords Cruise

Costa Diadema
Costa Diadema Recommended Cruise
Departing from:Copenhagen, Denmark
Ports of call:Geiranger, Norway•Hellesylt, Norway•Alesund, Norway•Stavanger, Norway•Kiel, Germany
Sailing dates:July 10•August 21, 2027

Bonus Offers:

  • Save $319 per person with this offer
Interior from $1,639 $1,320
View Itinerary

Showing Results 10 of 79

Things to do on Costa Diadema

3,724
Guests
1,253
Crew
1,004 ft
Length
132,500
Gross tonnage
2014
Maiden year
17
Restaurants
15
Bars & lounges
Archipelago

Archipelago

Discover the new Restaurant Archipelago: a brand new location with innovative and sustainable design. Three world-famous chefs with three new menus await you: Bruno Barbieri, Hélène Darroze and Ángel León.

Burger Bar

Burger Bar

By the pool, a take away lunch or a delicious snack, try our burgers, hot dogs and fries! It will be a tasty break, to share with your friends and your family.

Club Diadema Restaurant

Club Diadema Restaurant

Breakfast, lunch and dinner served at your table, which will be booked for your entire cruise. An à la carte menu awaits you with a wide selection of dishes carefully prepared by our chefs.

Dim Sum Chinese dumplings/Noodle Bar

Dim Sum Chinese dumplings/Noodle Bar

Chinese food tonight? Taste the best of China between Noodles and Ravioli, with a menu based on meat, fish or vegetarian.

Staterooms on Costa Diadema

Samsara Inside
Interior

Samsara Inside

Interior stateroom with vanity and desk, bathroom with shower, and a quiet retreat without outside view for restful nights. - Two twins convert to queen plus two Pullman beds - Writing desk and vanity with mirror and lighting - Closet and shelving storage for luggage items

Classic Outside Ocean view
Oceanview

Classic Outside Ocean view

Oceanview stateroom with modern decor, picture window and practical layout for watching changing scenery between port days. - Queen bed or twin beds plus sofa bed and Pullman bed - Sea views visible from bed when curtains open - Shower bathroom with vanity and storage space

Samsara with Ocean View Balcony
Balcony

Samsara with Ocean View Balcony

Veranda stateroom with vanity, bathroom with shower, plus a private balcony with open sea views and outdoor space. - Two twins convert to queen and sofa bed plus Pullman bed - Writing desk with mirror and storage space - Outdoor table and chair on private terrace

Samsara Suite with Ocean View Veranda
Suite

Samsara Suite with Ocean View Veranda

Suite with separate seating area, bathroom with shower or jacuzzi, and an extra-large terrace with open sea views outside. - Two twins convert to queen and sofa bed - Vanity and storage space near sleeping area - Outdoor seating space across the XXL terrace

About Costa Diadema

Costa Diadema cruises sail from Kiel, Copenhagen, Santos (Sao Paulo), and Barcelona on 3- to 20-night itineraries to Europe and Scandinavia. The Costa ship was built in 2014 and carries 3,724 guests. The ship has 17 dining venues and 15 bars and lounges.

Costa Diadema sailings run from October 2026 to October 2027, most often in November. Ports of call include Geiranger, Hellesylt, and Cadiz (Seville). Choose from interior, oceanview, balcony, and suite cabins. Check out the sailings above to find a departure that suits your plans.

Frequently asked questions

Where does Costa Diadema sail from?

You can sail from Kiel, Copenhagen, Santos (Sao Paulo), and Barcelona. Departures are most frequent from Kiel.

Where does Costa Diadema go?

You can visit Europe and Scandinavia. Ports of call include Geiranger, Hellesylt, and Cadiz (Seville).

What is on board Costa Diadema?

Costa Diadema has 17 dining venues and 15 bars and lounges.

When was Costa Diadema built, and how many guests does it carry?

Costa Diadema was built in 2014. The ship carries 3,724 guests.

What kinds of cabins are available?

You can choose interior, oceanview, balcony, and suite cabins.

How many Costa Diadema cruises are currently available?

There are currently 114 Costa Diadema sailings. Departures run from October 2026 to October 2027.

What are the shortest and longest Costa Diadema cruises?

The shortest trip is 1 night, and the longest is 27 nights. Most trips last 3 to 20 nights.

How long are Costa Diadema cruises?

Trips include 3- to 20-night itineraries.