what does transit mean usps refers to a mail status update indicating that a package is currently moving between locations in the USPS network. This could mean the parcel is en route from one facility to another or on its way to the delivery destination. “In transit” does not necessarily provide a specific location, and packages can remain in this status for a few days, especially during high-traffic seasons. It’s a standard part of the tracking process and not usually a cause for concern. Knowing what this term means helps reduce confusion when monitoring USPS shipments.