Airports Houston PreviousHonolulu NextHyderabad Houston Houston 0.00 Welcome to George Bush Intercontinental Airport. Use SkyBuys to check out information on duty free shopping and allowances. Or download the SkyBuys App and start duty free shopping. Add To Cart Facebook0 Twitter LinkedIn0 StumbleUpon Reddit Tumblr Pinterest0 duty free shopping ATU Duty Free - Shopping at George Bush Intercontinental Airport.ATU is a world leading travel retail company. Retail excellence, innovative merchandising and customer service are at the centre of everything we do. airport information Houston Airport SystemThe Houston Airport System manages George Bush Intercontinental/Houston Airport (IAH), William P. Hobby Airport (HOU), Ellington Field (EFD) & the Houston Spaceport. airport allowances International Travel informationThe Houston Airport System manages George Bush Intercontinental/Houston Airport.