The type, quantity, quality and price of accommodation varies according to the chosen itinerary. The busiest Ways have stopver gîtes (albergues), specifically for those using these itineraries.
In Spain, the Camino Francés has no lack of "albergues", as this Way is much used. Other less-well equipped Ways are nevertheless practicable, but will provide you with fewer choices as regards stops and/or will mean you end up paying more.
Most of the gîtes/albergues are reserved primarily for pilgrims who are long-distance walking and carrying their own backpacks. Those who have their luggage transported for them or who are accompanied by a vehicle should choose to stay in hotels.
In France and in Spain, various types of accommodation are available :
The "donativos"
According to a special tradition of hospitality in keeping with the spirit of pilgrimages, some host families may provide bed and board. This form of hospitality known as « donativo » is free, given in exchange for whatever you choose to pay your hosts. The hospitality must be provided by the masters of the house, in their own home, with meals at the family table. Walkers who enjoy this hospitality must be grateful for what is given to them, without demanding more. Sheer honesty obliges you to pay something towards the cost of your stay.
This hospitality is an occasional provision of accommodation, which is not supposed to be a regular event, nor a money-making venture. However, for a while now, some « donativo » providers no longer respect the rules, and impose a charge on walkers. This practice amounts to unfair competition : the accommodation provider should in reality register with their Town Hall and pay taxes according to their profits, in the same way as any other professional provider of accommodation.
In France, you are strongly advised to book accommodation several days in advance, especially in the busiest seasons (May to September). It is best, of course, to keep to the reservations you have made.
In Spain, it is impossible to book places in the "albergues" reserved for pilgrims, where the "first come, first served" rule applies.