us postal service priority mail express tracking is a service that allows customers to track the progress of their Priority Mail Express shipments in real time. Priority Mail Express is one of the fastest and most reliable services offered by the United States Postal Service (USPS), providing guaranteed overnight delivery to most locations within the United States. With tracking included, customers can check the current status of their shipment and monitor its movement from the moment it is picked up until it reaches its destination. USPS tracking updates are available through the USPS website, mobile app, or by calling customer service. Tracking provides key information such as the current location of the package, delivery attempts, and any exceptions that may delay delivery. Priority Mail Express also includes signature confirmation upon delivery, adding an additional layer of security to ensure that the package reaches the intended recipient. In the event of a delay or issue with the delivery, customers can use the tracking information to get in touch with USPS for assistance.