TUI has unveiled plans to launch direct flights from London Gatwick to Zanzibar for the Winter 2027 season, making it the only UK package holiday company offering nonstop routes to the Indian Ocean archipelago.The new service responds to rising demand among British holidaymakers looking for lesser-known long-haul winter sun escapes.Flights will operate twice weekly, departing on Wednesdays and Sundays, with the first taking off on November 3, 20…