Sunwing Airlines operates flights at Deer Lake Regional Airport (YDF) in Newfoundland and Labrador. If you're wondering, "What terminal is Sunwing Airlines at YDF?" Sunwing typically operates from the main terminal at YDF, as the airport has a single passenger terminal handling all airlines. For the most accurate and up-to-date information, it's always best to check with Sunwing Airlines or Deer Lake Airport before your flight.