

The commercial prices for the same starts at $6.55. The flat rate boxes for this service starts at $6.70 at the post offices. It usually delivers packages and envelopes in 1-3 days. Whereas, Priority Mail is a standard delivery service by USPS. Flat rate for this service starts at $24.70 with 3 box types meant for different types of items. The Express service is available to most US addresses with a few exceptions.

Priority Mail Express is a guaranteed delivery service which offers overnight scheduled delivery by 10:30 am. Priority Mail Express & Priority Mail Flat Rateįlat rate boxes are available with both Priority Mail Express and Priority Mail services from USPS.

Please allow one business day from order receipt for in-stock items to be shipped via USPS Ground Advantage™ service or via Priority Mail® service for a fee. Through the Postal Store® website, the Postal Service ships all in-stock orders with USPS Tracking® service.
