Pricing is calculated based on the package weight and the distance (zones 1–9) it travels. Priority Mail Option Retail Price Best Use Case Small Flat Rate Box Small, heavy items Medium Flat Rate Box Standard household items Large Flat Rate Box Larger gifts or multiple items Flat Rate Envelope $12.90 (Prepaid) Legal or standard documents Key Features Included What is Priority Mail®? - FAQ | USPS
Pay one fixed price regardless of the weight or destination (as long as it fits in the USPS-produced box).
Priority Mail offers two main ways to calculate cost for packages up to :
Print labels at home and schedule a free package pickup.
