Maybe you're the kind of traveler who loves planning every tiny detail of your trip. Or perhaps you'd rather hop in your rental car and see where the wind blows. Whatever your style, there are some basic details about Union Island Airport (UNI) that no one can go without.Once you've collected your suitcase from the luggage carousel at Union Island Airport (UNI), get ready to hop into the driver's seat of your rental car and head into Kingstown. The central area is located 40 miles north of the terminal.