I would like to ask few details because I have been overstayed my tourist visa in Spain, almost 3 months now, and I would like to go back to my country (Indonesia), What would be the consequences I face in airport immigration? Please help, Thanks
Penalties that may apply include a fine on departure, and/or a ban for one or more years. Certainly you will find it difficult to get another Schengen visa any time soon.
Exact penalties and implementation vary by country. Spain has tended to be more relaxed about fining departing overstayers, while Germany and the Nordic countries have been more strict. Policies change, however.
The only way to find out what will happen is to leave. Be prepared to be questioned and possibly detained for a while.