If we are Spanish citizens and wish to travel to Indonesia we must obtain a visa. This procedure can be done before traveling, however, we can also request it in migrations upon arrival at this destination.
For stays of less than thirty days, we must have an electronic passport that is valid for at least one hundred and eighty days, have the return plane ticket and have documents / cards / cash to support our stay in Indonesia.
The visa process for a stay of less than seven days is ten euros (it must be processed when we require a transit visa) and the visa procedure for a maximum stay of thirty days is twenty euros (it must be processed when we require a visa for tourism, which cannot be used for studies or work). If we are going to need a visa for more than thirty days, we must process a visa in advance at the Indonesian Embassy in Spain.
If we are citizens of Brunei, Chile, the Philippines, Hong Kong, Macao, Malaysia, Morocco, Peru, Singapore, Thailand and Vietnam, we will not need to apply for a visa to travel to Indonesia, provided that our stay is not more than ninety days.
If our trip is business, it is important to indicate that we must present in the area of migration at the airport: the original letter of presentation of the Spanish company we work for (this must be printed on letterhead and addressed to the embassy) , which must indicate our full name, passport number, and the reasons for our trip. The same will not be valid if you do not have at the bottom with company stamps and signature.