A destination wedding timeline runs earlier and tighter than a local one. The same reasons a destination wedding is better for guests (time to plan travel, make a trip of it, block leave) are the reasons it demands more lead time from you. Save-the-dates go out 14 months ahead, not six. Legal paperwork starts four to six months ahead, not four to six weeks. RSVPs close three months before the date, not one. The rest of the plan compresses or stretches around those fixed points.
This guide covers the month-by-month timeline from the moment you get engaged to the morning of the wedding. Eighteen months is the comfortable runway; twelve is workable; anything shorter trades flexibility for compromise.