The cheapest way to travel from Barcelona to San Sebastian is by bus. Depending on the departure time you have different prices. Please check www.vibasa.com The trip is long, but the bus is certainly the cheapest option.
Also from San Sebastian to Madrid, the cheapest option is by bus. Please check the buses from Continental Auto, www.alsa.es
Everything is in English. about 9 years ago
Take a look in that web page, but it's only in spanish, I'm afraid about 9 years agoAnswered by Sara via WorldNomads.com