Flying to Mexico by crossing the border at Tijuana first

A U.S. Border Patrol vehicle passes under the bridge that links the Mexico to the U.S. and the Cross Border Xpress building in San Diego on Thursday, April 20, 2017. The facility allows for a traveler to park in the U.S., check in for a flight, and then walk across an indoor elevated walkway to a flight out of the Tijuana International Airport without ever actually setting foot in the city of Tijuana. (Photo by Mark Rightmire,Orange County Register/SCNG)Travelers make their way to the parking lo