The number of flight passengers using Korean flag air carriers rose nearly 24 percent in May from a year earlier amid a nationwide move to return to pre-pandemic normalcy, government data showed Tuesday. Korean airlines carried a total of 9.32 million people on international and domestic routes last month, up 23.8 percent from 7.54 million tallied a year ago, according to the data compiled by the Ministry of Land, Infrastructure and Transport. International passengers soared more than sixfold to