Cruise deals, monthly prices & deck plans
Average price per person, per night for 2 adults sharing a interior cabin. Each sailing counts once. Only fresh, available USD quotes are included; this compares departure months, not a forecast. Budget, trip length and quick filters apply to the sailing list below, not the monthly averages.
Lowest average in this year: Oct 2026 · $133 per person/night across 8 sailings. Months with fewer than three sailings are not compared in this summary.
Fresh tracked fares across all departure dates, matching your guests, cabin, port, budget and trip length.
| Month | Sailings | Average | Median | Lowest |
|---|---|---|---|---|
| 2026-09 | 3 | $146 | $144 | $100 |
| 2026-10 | 8 | $133 | $145 | $76 |
| 2026-11 | 24 | $140 | $104 | $88 |
| 2026-12 | 17 | $221 | $232 | $166 |
52 matching sailings · cabin totals for 2 adults · 2026
More filters & save a ship search →
Gran Canaria · Ocean Crossing
Ports of call
Tenerife → Cape Verde – Mindelo → Maceio → Salvador
$1,121 per person · $93 per person/night
I1 — Guarantee · Checked Sep 24, 3:53 PM UTCSee prices & track this cruise →Savona · Other Destinations
Ports of call
Port pending
$163 per person · $81 per person/night
Down $0 from the previous recorded total
IV — Guarantee · Checked Sep 24, 10:28 AM UTCSee prices & track this cruise →Marseille · Other Destinations
Ports of call
Savona
$228 per person · $76 per person/night
Down $0 from the previous recorded total
IV — Guarantee · Checked Sep 24, 3:51 PM UTCSee prices & track this cruise →Tenerife · Ocean Crossing
Ports of call
Cape Verde – Mindelo → Maceio → Salvador → Rio de Janeiro
$1,213 per person · $101 per person/night
Down $12 from the previous recorded total
I1 — Assigned-category fare · Checked Sep 24, 10:46 AM UTCSee prices & track this cruise →Savona · Ocean Crossing
Ports of call
Barcelona → Malaga → Seville (Cadiz) → Lisbon
$757 per person · $95 per person/night
I1 — Guarantee · Checked Sep 24, 3:52 PM UTCSee prices & track this cruise →Tenerife · Ocean Crossing
Ports of call
Cape Verde – Mindelo → Maceio → Salvador
$972 per person · $88 per person/night
Down $5 from the previous recorded total
I1 — Guarantee · Checked Sep 24, 10:46 AM UTCSee prices & track this cruise →Savona · Western Mediterranean
Ports of call
Barcelona → Seville (Cadiz) → Lisbon → Lisbon → UK – Gibraltar → Malaga → Cartagena → Marseille
$1,099 per person · $100 per person/night
IV — Guarantee · Checked Sep 24, 3:29 PM UTCSee prices & track this cruise →Gran Canaria · Ocean Crossing
Ports of call
Tenerife → Cape Verde – Mindelo → Maceio → Salvador → Rio de Janeiro
$1,352 per person · $104 per person/night
Down $8 from the previous recorded total
I1 — Guarantee · Checked Sep 24, 10:45 AM UTCSee prices & track this cruise →Barcelona · Ocean Crossing
Ports of call
Malaga → Seville (Cadiz) → Lisbon → Gran Canaria → Tenerife → Cape Verde – Mindelo → Maceio → Salvador → Rio de Janeiro
$2,096 per person · $105 per person/night
Down $5 from the previous recorded total
I1 — Guarantee · Checked Sep 24, 10:37 AM UTCSee prices & track this cruise →Savona · Ocean Crossing
Ports of call
Barcelona → Malaga → Seville (Cadiz) → Lisbon → Gran Canaria → Tenerife → Cape Verde – Mindelo → Maceio → Salvador → Rio de Janeiro
$2,179 per person · $104 per person/night
Down $3 from the previous recorded total
I1 — Guarantee · Checked Sep 24, 10:36 AM UTCSee prices & track this cruise →Barcelona · Ocean Crossing
Ports of call
Malaga → Seville (Cadiz) → Lisbon → Gran Canaria → Tenerife → Cape Verde – Mindelo → Maceio → Salvador → Rio de Janeiro → Sao Paulo (Santos)
$2,249 per person · $102 per person/night
Down $4 from the previous recorded total
I1 — Guarantee · Checked Sep 24, 10:37 AM UTCSee prices & track this cruise →Barcelona · Ocean Crossing
Ports of call
Malaga → Seville (Cadiz) → Lisbon → Gran Canaria → Tenerife → Cape Verde – Mindelo → Maceio → Salvador
$1,915 per person · $101 per person/night
I1 — Guarantee · Checked Sep 24, 10:37 AM UTCSee prices & track this cruise →The current cabin-class total is at or below the lowest total in our recorded history for that sailing and guest count, and a higher price was previously recorded. It is not a claim about every fare ever sold. Specific categories, guarantees, promotions and inclusions can change; check the sailing page before booking.
Costa Diadema sails with Costa Cruises. Our current schedule includes 193 upcoming departures, including cruises from Barcelona, Savona, Kiel. Compare dates above before choosing a cabin: different trip lengths and ports can make a big difference to the total.
The lowest fresh cabin total currently captured for two adults is $259. Choose a cabin class above and sort by lowest cabin total. Confirm the category, taxes, extras and final price before booking.
Use the monthly chart to compare the same cabin class and guest count. The table includes the average, median and lowest nightly fare, plus the number of sailings. A month with one sailing is not enough evidence of a seasonal trend.
Yes. Open your sailing and choose “Already booked?” to save your cabin and booked price. A lower observed fare may be worth a call to your travel advisor, but repricing depends on the fare rules. View your tracked cruises or read the price-drop guide.
No. A deck plan shows the ship layout. Live room availability and guarantee assignments are separate. Check that the plan’s dates cover your departure before choosing a stateroom.
Explore the restaurants, plan your evening clothes and print a packing list for the length of your trip.