Hanoi, May 4 -- Hanoi (VNA) - Vietnam's aviation sector recorded a total of 1.68 million passengers during the Hung Kings Commemoration Day and Reunification Day-May Day holiday periods (from April 25 to 27, and from April 30 to May 3), up 2.2% year-on-year. According to the Civil Aviation Authority of Vietnam (CAAV), total cargo throughput reached 27,450 tonnes, representing a year-on-year increase of 7.2%. Domestic air travel accounted for 675,140 passengers and 3,400 tonnes of cargo, marking declines of 7.5% and 11.6%, respectively. In contrast, international transport showed robust growth, surpassing 1 million passengers and reaching 24,050 tonnes of cargo, up 10% in passenger numbers and 10.6% in cargo volume. Vietnamese carriers tra...