Airlines around the world said they would make more drastic cuts to their flying schedules, shed jobs and seek government aid after countries further tightened border restrictions because of the fast spreading coronavirus.  The owner of British Airways said on Monday that it would cut flying capacity by at least three quarters in April and May, and that its outgoing boss, Willie Walsh, would defer his retirement as the carrier tries to survive the fallout of the virus. International Consolidated Airlines Group ( ICAG.L ), the parent company that also owns Iberia and Aer Lingus, said it would also ground flights, freeze discretionary spending, reduce working hours and temporarily suspend employment contracts. United Airlines Holdings Inc ( UAL.O ), one of the three largest […]