The Tour du Mont Blanc circles the Mont Blanc massif through France, Italy and Switzerland in roughly ten to eleven days, staying in mountain refuges along the way. The trekking itself is well documented. The part that trips people up is booking: matching a run of huts that all have space on the nights you need, in the order the trail actually runs.
It is the busiest hut circuit in the Alps, and the data says so
We check availability across hundreds of alpine huts daily. Over the 30 nights following 6 August 2026, the Tour du Mont Blanc ran 57.3% of hut-nights full - second only to the neighbouring Beaufortain at 61.5%, and against an Alps-wide picture where many whole massifs sit under 15%.
For comparison, in the same window: Valais and Zermatt 7.5% full, Ticino 10.5%, Bernese Oberland 16.5%.
That is the honest context for everything below. The Tour du Mont Blanc is not hard to book because you are doing it wrong. It is hard to book because roughly eleven huts absorb almost everybody walking the circuit, each has to have space on a specific night, and they have to work in sequence.
When to book
Most Tour du Mont Blanc refuges open their booking calendars the autumn before the season, and popular stages fill within days. If you are planning a summer trek, the working rule is to book in October or November of the previous year, not the spring before you travel.
If you are reading this in summer for this summer, do not give up, but do change your expectations: plan around what has space rather than around the standard stage list, and read the hut you wanted is full.
Move your Saturdays
Across all the nights we track, 35.3% of huts are full on a Saturday against 18.3% on a Sunday. In bed terms, an average Saturday has around 5,200 beds spare across the network and an average Sunday around 11,000.
On a circuit as tight as the Tour du Mont Blanc that swing is decisive. Plan the short stage, the rest day or the valley night to land on the Saturday, and put the refuge you most care about on a Sunday or a Thursday. It is a smaller change to your trip than any other fix and it moves the odds more. See when do alpine huts actually fill up.
The huts do not share one booking system
Several book through the shared Tour du Mont Blanc platform - 80 huts in our registry sit on it - while others take reservations on their own site, and a handful still work by email or phone. Across the Alps as a whole only about 7% of huts take a booking fully online.
That split is the actual planning problem: checking a dozen refuges by hand, across several systems, to find a chain that all have space on consecutive nights, in trail order. How alpine hut booking actually works covers the systems and what to write when the answer is email.
The chain-booking problem
A single available bed on a single night is not enough. A full circuit needs every night covered, in sequence, with each hut walkable from the one before it. If one refuge in the middle of your route has no space on your date, the rest of the plan usually has to shift too.
HutScanner maps the whole Tour du Mont Blanc refuge network - every hut and the walkable route between them - with live-checked availability, so you can see which chains of consecutive nights are actually open before you start booking calls and emails.
Refuges along the route
A sample of stage huts on the circuit, for reference. Altitude and capacity below, current availability on each hut's page. Book the small ones first: capacity is your binding constraint far more than position on the trail.
- Refuge de la Flégère - 1807 m, sleeps 90
- Refuge de Bellachat - 2152 m, sleeps 18
- Refuge de Nant Borrant - 1459 m, sleeps 35
- Refuge de la Croix du Bonhomme - 2443 m, sleeps 99
- Refuge des Mottets - 1870 m, sleeps 50
- Cabane du Combal - 1969 m, sleeps 23
- Refuge Elisabetta - 2195 m, sleeps 80
- Refuge Giorgio Bertone - 1970 m, sleeps 60
- Refuge Walter Bonatti - 2030 m, sleeps 75
Refuge de Bellachat at 18 beds and Cabane du Combal at 23 are the kind of hut that decides an itinerary. A 90-bed refuge rarely is.
Should you do it at all
Worth asking honestly, because a lot of people arrive at the Tour du Mont Blanc having heard of it rather than having compared it.
Do it if the route is the point - the circuit, the three countries, the name. It is a genuinely magnificent walk and there is a reason it is the most popular trek in the Alps.
Consider elsewhere if a week of hut-to-hut walking is the point. The same effort spent in a quieter massif buys you far easier booking, emptier paths and, frequently, better value. Where alpine huts still have space sets out the alternatives with the numbers behind them.
Planning it
Open the Tour du Mont Blanc network in HutScanner to see the full hut chain, check availability across consecutive nights, and route between refuges at your own pace. New to this kind of trip? Start with planning your first hut-to-hut trek.
Routes are computed estimates over open mapping data, not surveyed trails - check them against an official map. You book directly with each hut; HutScanner is a planning aid, not a booking service.