In addition, third and fourth passengers in a stateroom get 50% off the double occupancy price.
The $499 rate applies to an inside cabin. Fares for the first two people in an outside room start at $599, and at $699 for a room with balcony, while a suite starts at $2,499.
Taxes, fees and port expenses are currently an extra $208 per person.
The Dominican Republic fares include three on-shore social impact activities and related supplies.
Meanwhile, Fathom's Cuba cruises are currently priced starting at $1,899 per person, excluding Cuban visas, taxes, fees and port expenses. Certain on-the-ground cultural immersion activities are included.