Fares per person start at €391 on Sun Princess and €447 on Sky Princess. Sun Princess is the bigger ship, carrying 4,300 guests to 3,660. Sun Princess has the fewest guests per crew member, at 2.7 to 1. Sun Princess is newer, built in 2024 against 2019, though Sky Princess was refurbished in 2023. Sky Princess runs 4–46 night cruises from Southampton and Fort Lauderdale, plus 1 other port, while Sun Princess runs 6–32 night cruises from Barcelona and Piraeus (Athens), plus 3 other ports.