what is usps priority is a shipping service offered by the United States Postal Service that guarantees faster delivery than standard First-Class Mail. USPS Priority Mail typically delivers packages within 1-3 business days, depending on the destination. This service offers benefits like tracking, insurance, and flat-rate pricing for certain package sizes, making it an ideal option for businesses and individuals who need quick and reliable shipping. USPS Priority Mail is often used for parcels that need to be delivered urgently, and the included features help ensure a secure and timely delivery experience.