You'll need to arrive at the airport 3 hours before departure. The departure tax is 36 ANG per passenger. You'll pay the tax, go through immigration and clear security in separate queues. You must be at the gate at least 30 minutes before departure.
Sunday - Friday: 10 AM - 5 PM
Saturday: 9 AM - 5 PM
+599-546-7684, open 10 AM - 5 PM