Royal Caribbean allows you to cancel a cruise, but the timing matters for refunds or penalties. Typically, if you cancel 90 days or more before the sailing, you can expect a full refund (Call 1-844-949-8748 Cancel & Refund). From 89 to 75 days prior, there’s a 25% fee. If you cancel between 74 and 61 days before the cruise, the penalty is 50%.