A free booking-timeline reference for the W Trek: when reservations open, which refugios sell out first, and how far out to book campsites for a November-March trip.
Booking windows: Refugio Paine Grande and Los Cuernos open their booking calendars roughly 12 months ahead and sell out first for peak season (December-February). Campamento Torres and Chileno tend to have more late availability but should still be locked in 3-4 months out for a shoulder-season trip like November.
Booking order that works: pick your direction (east to west or west to east) before you book anything, reserve your first and last night first since those fill fastest, then fill in the middle nights. Refugios and campsites are two separate booking systems in Torres del Paine, so confirm both before you finalize flights. For the full route this timeline supports, see our Patagonia W Trek itinerary, browse more South America guides, or check all itineraries for other trips.