Turkish Airlines marked the beginning of its first nonstop service from Logan International Airport to Istanbul with a Logan ceremony that featured a ribbon-cutting, a gift exchange, and a water salute display.

The 10½-hour flight will initially be offered five days a week — on Mondays, Wednesdays, Thursdays, Fridays, and Sundays. After June 10, flights from Boston to Istanbul will operate on a daily basis, said the Massachusetts Port Authority, the agency that operates Logan.

Turkish Airlines will use a 289-seat Airbus A330-300 aircraft for the Boston-Istanbul route.