Buñol is about 40 kilometres west of Valencia. Regional trains on the Valencia-Cuenca line stop at Buñol, and the trip from Valencia Nord usually takes a little over an hour. Driving is straightforward on the A-3, though parking near the centre can be tight during festivals.
For La Tomatina, book transport and tickets ahead. The town's normal scale is small, and the festival changes everything from traffic to crowd control.