
Priority Mail pricing and delivery time FAQs Read on to learn which Priority Mail service is right for your business, find answers to frequently asked questions and get tips for shipping Priority Mail from home. In addition to Priority Mail Express, Priority Mail is divided into two more categories: Priority Mail Flat Rate and Priority Mail Retail/Commercial. Media Mail ®: 2 - 8 business day delivery of educational materials and media.USPS Retail Ground ®: 2 - 8 business day delivery of packages of any size/weight.First-Class Mail ®: 1 - 3 business day delivery of mail, small packages up to 13 oz.Priority Mail: 2 - 3 business day delivery of anything mailable up to 70 lbs.Priority Mail Express ®: 1 - 2 day or overnight delivery of anything mailable up to 70 lbs.Flat Rate envelopes can also be used for international shipments, to do so use the International window to print postage, addresses and customs forms in one swift operation.The definition is right in the name: Of all the classes of shipping it offers, USPS ® prioritizes the delivery of its Priority Mail ® services:.The easiest way to print postage for flat rate boxes is to use the Packages window to print out shipping labels - print addresses, postage and tracking information in one easy step and save up to 11% on Priority Mail and 3% on Priority Mail Express.Printing Postage for Priority Mail Flat-Rate Boxes To order free USPS Flat Rate Boxes or any other free Priority Mail or Priority Mail Express supplies go to the Store. Regardless of the size of the box, you can place whatever will fit comfortably inside (with the box closing securely and with no bulges), so long as the weight is 70 pounds or less and mail it for the flat rate. With this box, you also get a steep discount rate when mailing to an APO or FPO address.

