For bookings made during May, US and Canadian residents pay half price for the second passenger in a stateroom with a full-fare passenger.
The offer applies to new individual and named group bookings in all stateroom categories and sailings departing between Jan. 1, 2015, and April 30, 2016, excluding Quantum of the Seas and Anthem of the Seas, as well as third and fourth passengers in a stateroom.
Seven-night western Caribbean cruises on Allure of the Seas from Port Everglades, for example, are priced starting at $899 per person, while seven-night eastern Caribbean cruises on Freedom of the Seas from Port Canaveral begin at $699. Seven-night western Mediterranean sailings on Allure of the Seas from Barcelona start at $1,199, and seven-night Scandinavia/Russia cruises on Serenade of the Seas from Copenhagen begin at $999. Taxes and port fees are extra.