Delta Air Lines begins nonstop daily flights between Honolulu and Cincinnati tomorrow. The new route, announced in June, will use 285-passenger Boeing 767-400 planes. Flight 511 will depart Cincinnati daily at 1 p.m. EST and arrive in Honolulu at 5:25 p.m. HST; return Flight 256 will depart Honolulu at 8:40 p.m. HST and arrive in Cincinnati at 9:50 a.m. EST. Delta — which already offers daily nonstop flights to Hawaii from Los Angeles, San Francisco, and Salt Lake City — operates its second-largest hub at the Cincinnati/Northern Kentucky International Airport (CVG).