The nearest subway station is SOL, located within 2 minutes walking distance (lines 1/2/3). The price of the ticket is only 1 euro with airport supplement of another euro.
From the airport take line 8 to NUEVOS MINISTERIOS, change to line 10 to TRIBUNAL and change again in TRIBUNAL to line 1 heading towards station SOL. The exit is Carretas street.
TRAIN, BUS OR PRIVATE CAR
From Puerta Del Sol there are numerous buses that can connect you with the rest of Madrid. If you wish to travel by train, ATOCHA train station is also very close and offers the choice of three different parkings.