[Priority Mail] is a versatile, efficient, and affordable service. Delivery estimated between 1-3 days.
Priority Mail rates are based on parcel weight, dimensions or packaging, and distance, as well as rate class.
When a custom package is used, parcel weight and dimensions are used to determine postage costs. Costs increase as weight and dimensions increase. [Learn how dimensions affect rates].
Postage costs also increase as the distance increases. USPS uses [Zones] to measure the distance a domestic shipment must travel, ranging from Zone 1 (local) to Zone 9 (very far away). Calculate your zone using the USPS ® Dynamic Zone Map.
In contrast, Flat Rate services require specially marked boxes and envelopes that receive one rate, regardless of distance or weight. In most cases, [Flat Rate packages] are the lowest cost option, if items fit within the box. [USPS provides packaging at no cost].
Retail pricing is offered directly from the USPS at Post Office retail locations or USPS.com. It does not include discounts on postage prices like those received via ShippingEasy. [Learn more about USPS Retail pricing].
USPS rates changed January 24, 2021. Learn more about 2021 rates.
Compare with Priority Mail | Retail
USPS provides a multitude of services and rate classes. Check out these similar services and rates to see how they compare:
USPS rates increased for specific domestic services on October 3rd, 2021. Learn more about the USPS Holiday Surcharge.