What is included in the cruise fare?

Standard cruise fares include your cabin, onboard meals at main dining venues, most non-specialty entertainment, use of pools and common facilities, and transport between ports of call. Gratuities, specialty dining, alcoholic drinks, shore excursions and onboard spa services are typically billed separately.

How far in advance should I book this cruise?

For popular sailings, booking 6–12 months ahead typically gives the best cabin selection and fares. Last-minute discounts can appear 30–60 days before departure when the cruise line wants to fill remaining cabins on Costa Diadema.

What documents do I need to board?

Most international itineraries require a passport valid for at least six months beyond your return date. Closed-loop sailings that depart and return to the same U.S. port from Buenos Aires, Argentina may accept a government-issued photo ID plus a certified birth certificate for U.S. citizens — always verify with the cruise line.

Can I change or cancel my booking?

Change and cancellation policies depend on Costa Cruises's fare type and how close you are to departure. Refundable deposits typically allow changes up to the final-payment date without penalty; closer to sailing, cancellation fees scale up. Review the specific fare rules before booking.

What is a 7-night cruise like?

A 7-night cruise balances relaxing sea days with active port days. You can expect a mix of onboard programming — dining, entertainment, spa and fitness — and multiple shore excursions from Costa Diadema. Pack for both formal nights and casual deck days.

Costa Diadema 7-night Argentina, Uruguay, Brazil from Buenos Aires, Argentina, Mar 10, 2027

Costa Cruises · Costa Diadema · Mar 10, 2027 – Mar 17, 2027

Visit Buenos Aires, Argentina, Montevideo, Uruguay, Itajai, Santos, Brazil

Departure Buenos Aires, Argentina

Return Buenos Aires, Argentina

Duration 7 Nights

From $1292 pp

Itinerary

Day 1

Buenos Aires, Argentina Arrives 12:00 AM · Departs 6:00 PM
Day 2

Montevideo, Uruguay Arrives 8:00 AM · Departs 4:00 PM
Day 3

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 4

Itajai Arrives 10:00 AM · Departs 5:00 PM
Day 5

Santos, Brazil Arrives 8:00 AM · Departs 5:00 PM
Day 6

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 7

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 8

Buenos Aires, Argentina Arrives 8:00 AM · Departs 12:00 AM

Cabin Prices

Prices as of 2026-10-19.

Prices per person, based on double occupancy in USD.

Inside $1292

Ocean View $1442

Balcony $1532

Suite $1702

Ports of Call

Buenos Aires, Argentina
Montevideo, Uruguay
Itajai
Santos, Brazil

About This Cruise

7-night Costa Cruises Costa Diadema cruise from Buenos Aires, Argentina to Montevideo, Uruguay, Itajai and Santos, Brazil Compare cabins from $1,292.

Cruise Line Costa Cruises

Ship Costa Diadema

Frequently asked questions

What is included in the cruise fare?: Standard cruise fares include your cabin, onboard meals at main dining venues, most non-specialty entertainment, use of pools and common facilities, and transport between ports of call. Gratuities, specialty dining, alcoholic drinks, shore excursions and onboard spa services are typically billed separately.
How far in advance should I book this cruise?: For popular sailings, booking 6–12 months ahead typically gives the best cabin selection and fares. Last-minute discounts can appear 30–60 days before departure when the cruise line wants to fill remaining cabins on Costa Diadema.
What documents do I need to board?: Most international itineraries require a passport valid for at least six months beyond your return date. Closed-loop sailings that depart and return to the same U.S. port from Buenos Aires, Argentina may accept a government-issued photo ID plus a certified birth certificate for U.S. citizens — always verify with the cruise line.
Can I change or cancel my booking?: Change and cancellation policies depend on Costa Cruises's fare type and how close you are to departure. Refundable deposits typically allow changes up to the final-payment date without penalty; closer to sailing, cancellation fees scale up. Review the specific fare rules before booking.
What is a 7-night cruise like?: A 7-night cruise balances relaxing sea days with active port days. You can expect a mix of onboard programming — dining, entertainment, spa and fitness — and multiple shore excursions from Costa Diadema. Pack for both formal nights and casual deck days.