 <unk> International Airport at Galveston ( IATA : <unk> , ICAO : <unk> ) is a two @-@ runway airport in Galveston ; the airport is primarily used for general aviation , offshore energy transportation , and some limited military operations . The nearest commercial airline service for the city is operated out of Houston through William P. <unk> Airport and George Bush Intercontinental Airport . The University of Texas Medical Branch has two <unk> , one for Ewing Hall and one for its emergency room . 
