How many destinations an airline headquartered on the grounds of Cincinnati/Northern Kentucky International Airport, that was owned by one of the four founding members of the SkyTeam airline alliance, and operates joint ventures with Air France-KLM, Alitalia, Korean Air, China Eastern Airlines, Virgin Atlantic, and Virgin Australia?
Comair destinations: Comair was a wholly owned subsidiary airline of Delta Air Lines, headquartered on the grounds of Cincinnati/Northern Kentucky International Airport in Boone County, Kentucky, United States, west of Erlanger, and south of Cincinnati. Delta Air Lines:  Delta is one of the four founding members of the SkyTeam airline alliance, and operates joint ventures with Air France-KLM, Alitalia, Korean Air, China Eastern Airlines, Virgin Atlantic, and Virgin Australia.
i don't know