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Many also arrive at Girona and Reus airports, if they've believed Ryanair's claim that these airports are in Barcelona. They are not. Read more about Barcelona Airports.
Thankfully, The Benicassim festival runs buses directly from these airports. Book well in advance: Benicassim festival.
Valencia is the nearest big city to Benicassim. Transport from Valencia to Benicassim is easy. After that, the city with the next best transport connections is Barcelona. There is a train line that connects Valencia to Barcelona via Benicassim.
It is not easy to get from Madrid to Benicassim. If you are traveling from Madrid, you are best off stopping for a night in Valencia. See further details here:
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