If you like your Pyrenees covered in snow, time your visit between November and March. During the summer, temperatures peak in the mid-20s.
Getting there
Planes
Zaragoza has an airport but Ryanair only flies in one direction (from Spain to Stansted). Another option is to land in Biarritz over the French border and hire a car for the two-and-a-half-hour drive south.
Automobiles
Since its station is a key part of the attraction, cars are considered a lesser mode of transport in Canfranc – but one will come in handy for exploring the Aragón Valley and its pretty peaks.