piority mail Piority mail is a common misspelling of USPS Priority Mail, a fast and affordable domestic shipping service offering 1–3 day delivery windows. This option includes tracking, $100 insurance, and flat-rate packaging. Priority Mail is widely used for ecommerce fulfillment due to its reliability and predictable cost structure. Businesses and individuals benefit from online label creation and scheduled pickups. Despite the spelling error, interest in “piority mail” reflects demand for expedited yet budget-friendly shipping in the U.S. market.