Madrid - Salamanca (Bus):
Bus from the Airport: There is a regular bus service from Madrid-Airport to Salamanca operated by Avanza bus company, very convenient because it does not require the use of taxis or any other connection. These buses stop outside Terminal 1 and 4 (see map below).
In Salamanca, the bus terminal is located in a walking distance (5-10 min) from the meeting venue.
Tickets (approximate price 26 €) can be purchased (better in advance) in the Website of the company: http://www.avanzabus.com/web/default.aspx?lang=en
Madrid - Salamanca (Train)
Trains to Salamanca depart from Estación de Chamartín (Phone: +34 913 159 976)
From Barajas International Airport, you have these options: