Turkish Airlines, Turkey's flag carrier airline, commenced flights from Istanbul to Miami on Sunday.Flights between Istanbul's Atatürk International Airport and Miami International Airport will operate seven days a week, the airline said in a statement.Turkish Airlines was ranked the fourth best airline in the world at the annual Skytrax World Airline Awards in 2015.The airline currently flies to more than 280 destinations including Buenos Aires, Sao Paulo, Toronto, Chicago, Houston, Los Angeles, New York, Washington, Boston, Montreal and San Francisco.