Cross Border Xpress (CBX), also referred to as the Tijuana Cross-border Terminal and the Puerta de las Californias, is an airport terminal located in San Diego, California, United States, with an access bridge connecting it to the Tijuana International Airport in Tijuana, Baja California, Mexico. It opened on December 9, 2015. It is the world's first true binational airport passenger terminal. Unlike the EuroAirport Basel–Mulhouse–Freiburg – which is entirely in France, despite being jointly administered with Switzerland – the CBX terminal is physically located in the United States but serves the Tijuana airport. A pedestrian bridge spans the United States–Mexico border, connecting passenger terminals between the two countries. It was the creation of Ralph Nieders, who introduced the conce