You must arrive 3 hours before departure and pay a separate departure tax of 36 ANG. There will be 3 different queues for tax, immigrations and security. Also, you must be at the gate at least 30 minutes before departure.
Simpson Bay Sint Maarten Netherlands Antilles pjiae.com
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10 AM - 5 PM (daily, except Saturday) 9 AM - 5 PM (Saturday)