Offers and Promotions Royal Caribbean Singapore Promo Codes: Up to US$300 Instant Savings or US$200 Onboard Credit on New Bookings, Until 7 Dec 2026 Royal Caribbean Singapore lists promo codes for new individual bookings made 6 Nov to 7 Dec 2026, giving onboard credit or instant savings of up to US$300 depending on cabin type and sailing length. Codes must be entered at checkout. Nov 10, 2026