United Airlines San Diego Office United Airlines maintains a conveniently positioned office in San Diego to provide its clients with a variety of travel-related services. The United Airlines San Diego office can help you plan a trip, manage an existing booking, or request assistance with luggage or flight modifications. The office is conveniently located in a key district of San Diego, making it accessible to both local and foreign visitors. The personnel are educated and willing to assist with flight reservations, seat upgrades, MileagePlus reward requests, and other customer care issues. San Diego is an important destination for United Airlines, with several daily flights connecting visitors to major hubs such as Chicago, Denver, Houston, and more. The airline’s dedication to customer satisfaction. offers a smooth travel experience, whether you are traveling for work or pleasure. If you need to visit the United Airlines San Diego office, verify their hours of operation and contact them for any specific questions. United Airlines also offers 24-hour customer care through their website and mobile app. Travelers can rely on United Airlines for dependable service and easy flight options, making it a popular choice in San Diego.