Based on flight volume data, Roseau Douglas–Charles is the most popular airport that ETF Airways uses. St. John's V.C. Bird Intl and Castries George F. L. Charle are the next two most visited by ETF Airways.
No, you will need to book a flight with ETF Airways out of Simpson Bay Princess Juliana because the airline doesn’t have scheduled flights from Bangkok Suvarnabhumi at this time. If you still wish to fly from Bangkok Suvarnabhumi, then consider booking with แอร์ฟร้านซ์.