Frequently Asked Questions
Everything you need to know about BonVoyageur
Discovery
BonVoyageur is a multi-country trip planner designed for slow travelers. The tool optimizes the order in which you visit your countries based on weather, visa constraints, and distances. You choose your destinations, we calculate the optimal timing.
For travelers planning 3-12 month trips across multiple countries who want to structure their timing without following a pre-made itinerary. Digital nomads, sabbaticals, gap years, round-the-world trips. If you're looking for a one-week all-inclusive getaway, this isn't for you.
Yes, BonVoyageur is completely free. No hidden premium version, no locked features. It's an independent project created by a traveler for the community.
A-Contresens is excellent for visualizing weather by country. BonVoyageur goes further by automatically optimizing visit order based on weather + visa + distance, and calculating durations per country. The two are complementary.
How It Works
We use dynamic programming (Held-Karp algorithm) to find the optimal visit order. The score combines weather quality (monthly data per country), distances between capitals, and visa constraints. No generative AI, just a deterministic and transparent algorithm.
The data covers 199 countries for French passport holders. It's regularly updated but rules change. Always verify on the official website before departing. The tool alerts you if your planned duration exceeds the visa limit.
Absolutely. The suggested itinerary is a starting point. You can drag and drop to reorder countries, adjust the duration of each stop, add or remove countries. The tool recalculates in real-time.
You can export to Excel with a travel checklist (passport, insurance, vaccines...) and details for each stop. You can also share a link to your itinerary or save it to your account.
Practical
199 countries with monthly weather data and visa information. Large countries (China, USA, India, Brazil...) are divided into climate regions for more precise optimization.
Currently, visa data is only for French passport holders. Support for other nationalities is planned for later. Weather/distance optimization works for everyone.
Select your dream countries (6-10 countries for 6 months), enter your departure date (or let the tool find the best one), choose your total duration. The algorithm calculates the optimal order and time distribution. Adjust according to your preferences.
Slow travel means taking time to discover each place in depth rather than rushing from one Instagram spot to the next. 2-4 weeks minimum per country, local transport, cultural immersion. Fewer destinations, more experiences.
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