Jack in the Box 26942 Ortega Hwy, San Juan Capistrano, CA92675 This location of the popular Southern California fast food burger joint is located at the exit of the busy Interstate 5…More highway. This makes it a great quick pit-stop for travelers and locals. Jack in the Box has a large menu that offers other items than just hamburgers. It has chicken dishes, salads, Mexican favorites such as tacos and burritos and milkshakes. This spot is open 24/7.