Let us take you there! Sun Shuttle 421 You can connect to the Sun Link streetcar in Downtown Tucson. Leave the Driving to us! For schedules and times visit suntran.com/sunshuttle sun shuttle Eat Shop or to plan your trip call 520-792-9222. Let us take you there! Sun Shuttle 421 You can connect to the Sun Link streetcar in Downtown Tucson. Leave the Driving to us! For schedules and times visit suntran.com/sunshuttle sun shuttle Eat Shop or to plan your trip call 520-792-9222.