Royal Caribbean typically appeals to couples and singles in their 30s to 50s as well as families of all ages. The median age is in the low 40s on seven-night cruises and in the 30s on three-and four-night cruises. Passengers 50 to 55 and older tend to dominate 10-night and longer cruises. Royal Caribbean attracts passengers that are looking for an affordable, active vacation.

During the day, dress is casual. Evenings are either casual, smart casual or formal. On casual nights, suggested attire is sports shirts and slacks for men and sundresses or pants for women. On smart casual evenings, ideally men should don jacket and tie and women dresses and or pantsuits. On the one or two formal nights per cruise, men can opt for a tuxedo, though a simple sports coat and tie is becoming the norm, while women should wear cocktail dresses or gowns.

Royal Caribbean passengers are charged $14.50 per person, per day. Suite passengers can expect to be charged $17.50 per person, per day, except for Australian and New Zealand bookings, where service charges for cabin attendants and dining room staff are included in the fare. Outside AU/NZ, gratuities can be prepaid or will be added on a daily basis to passengers' SeaPass accounts during the cruise. Passengers can modify or remove gratuities by visiting the guest services desk while onboard. An 18-percent gratuity is automatically added to bar, spa and in-room dining when sailing in all countries.