If you read any of the 100 posts about this here on the forum - or pretty much any information about Costa Rica -- you will see that there is a $29 exit tax for each person with an airline ticket leaving Costa Rica. And no, it's not included in your ticket price for historical reasons. And it doesn't matter where your flight goes; when you leave Costa Rica, you pay an exit tax.......... and fill out a form.
Yes there is a $29/pp exit tax charged at both international airports before leaving the country. Please check top questions upper right hand corner of the forum page for more details.
There are very rare occasions when charter packages include the exit tax.
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