Korean air lines flies from the land of the morning calm to about 120 cities in some 40 countries worldwide. flights to asian countries and the us account for most of south korea's #1 carrier's traffic. the airline extends its network as part of the skyteam alliance, led by delta air lines and air france. (code-sharing allows carriers to sell tickets on one another's flights.) in addition to its passenger business, korean air is a leading air cargo carrier. its fleet of about 125 airbus and boeing jets includes more than 20 freighters. the carrier has interests in aerospace components, airline catering, and hotel and limousine businesses. its subsidiary, jin air, started flights in korea in mid-2008.