Asteroid Express offers Same Day Courier Service in San Diego, California. Asteroid Express provides Courier & Delivery Services to all Businesses and Individuals anywhere in San Diego and all of Southern California. We understand how important time-sensitive, & on-demand deliveries can be to meet specific deadlines. We offer a wide range of cost-effective delivery solutions for your delivery needs. We can handle any same-day delivery needs whether it’s a package delivery, document delivery, local courier, medical courier, or a legal courier to arrive on time and safely.