For passengers flying with Air China, customer service is available at the Air China Los Angeles Office It provides help with bookings, ticketing, flight changes, and other travel-related questions and is situated in the center of Los Angeles. Passengers can get advice on baggage regulations, visa requirements, and other travel-related matters from the informed staff. Passengers leaving or connecting through Los Angeles are guaranteed a smooth travel experience as this office serves as Air China's entry point to the United States. The official Air China website has contact information.