TUI fly Belgium is a Belgian airline and a subsidiary of the TUI Group, one of the world’s largest travel and tourism companies. Established in 2003 and headquartered in Zaventem, Belgium, TUI fly Belgium operates scheduled and charter flights to a wide range of destinations primarily in the Mediterranean, Africa, and the Caribbean.

Operating from its main bases in Brussels Airport, Antwerp Airport, and other Belgian airports, the airline is known for its modern fleet, commitment to environmental sustainability, and offering competitive prices to popular holiday destinations. As part of the larger TUI Group, it plays a significant role in the European leisure travel market.