Hanoi, July 21 -- The Vietnam Airlines Group, encompassing Vietnam Airlines, Pacific Airlines, and Vasco, announced comprehensive flight modifications for July 21 to ensure safety for passengers and crew members as Typhoon Wipha intensifies its approach towards Vietnam's northern coast. Vietnam Airlines canceled several key domestic routes, including flights between Ho Chi Minh City and Hai Phong (VN1188, VN1171, VN7188, VN7189, VN7056, and VN7057), as well as routes to Con Dao (VN1856 and VN1857). Meanwhile, Pacific Airlines rescheduled its flights between Ho Chi Minh City and Hai Phong (BL6440 and BL6441), assuring take-off and landing at Cat Bi Airport in Hai Phong city before 12:00 pm on July 21. It also canceled flights BL6520 and BL...