The airport code you will want to use is DOM.
You may be happy to find out that American Airlines has a new direct flight from Miami (MIA) to Dominica (DOM) or via San Juan (SJU) http://www.aa.com/
Our reservations team will be happy to assist you with finding the best flights to our ‘Nature Isle’.
Please let us know your travel dates and the airport you are departing from. You can email us at info@junglebaydomincia.com or call us at Cell/Whatsapp +1 (767) 235-0025.