There are no trains on Curacao
Car and bus
At the exit of the airport you go right, after 1.5 kilometers you come to a roundabout, to go to Willemstad you go halfway around the roundabout.
The buses are located on the east side of the terminal building, by the Departures Hall. Lines 2A and 2C go each hour to Willemstad, a ticket costs NAf 1.25.
Car rental - Curacao Airport
In the terminal you can find counters of many local car rental companies as well as the international car rental companies: Avis, Budget, Hertz and National. You can also reserve a rental car in advance using the service EasyTerra provides, they compare the rates of several providers in a single quote.
Taxis are in front of the Arrivals Hall. In Curacao the taxis do not have meters, therefore you must negotiate your price. A ride to the center of Willemstad costs NAf 22.00-28.00. An extra 25% is charged for a fifth passenger, this also applies for night rides, between 23:00-06:00.
There are 300 parking spaces for the terminal building and the rate is NAf 4.50 per hour.