Vacations to Go offers a Costa Cruises 4-Night Mediterranean Cruise for Two with prices starting from $520. That's the lowest price we could find for such a cruise in April by $38. This roundtrip cruise aboard the Costa Pacifica departs on April 7 from Barcelona, Spain, and includes stops in Marseille, France; and Savona, Italy. Additional fees and taxes may apply. Book this travel deal by April 1.