Many travelers ask exactly how far in advance should you plan a Europe trip, especially for river cruises, summer travel, and custom itineraries. For most travelers, I recommend beginning the planning process at least 6–12 months in advance for a Europe trip. If you are traveling during: summer Christmas market season spring break fall foliage season or around major events …it is often wise to plan even earlier. Luxury hotels, river cruises, and smaller boutique properties ca