22-Apr-2014 9:13 AMHouston George Bush Intercontinental Airport pax up 3%, cargo up 1% in Mar-2014US' Houston George Bush Intercontinental Airport passenger numbers up 3% - traffic highlights for Mar-2014: Passenger numbers: 3.6 million, +2.7% year-on-year; Domestic: 2.7 million, +1.3%; International: 858,477, +7.0%; Cargo volume: 35,664 tonnes, +0.6%; Aircraft movements: 44,016, -1.0%.