Hanoi, April 27 -- Noi Bai International Airport in Hanoi is expected to handle more than 650 flights on April 29, the peak travel day for the upcoming Reunification Day and May Day holidays, as passenger traffic is forecast to rise 10-15% over normal levels. Based on airlines' operating plans, passenger throughput is estimated at 113,631, an increase of 15% over regular operations and 12.4% year-on-year. International traffic is expected to account for 323 flights, up 7.3% from normal levels and 13% from a year earlier, carrying an estimated 52,102 passengers. Notably, international passenger numbers are forecast to surge 29.1% year-on-year. Meanwhile, domestic operations are projected at 329 flights, up 11.5% from regular schedules, wit...