Priority Mail, including Priority Mail Flat Rate shipping products, has fast shipping times (2-3 days) with flexible prices. Get free flat rate boxes and print postage labels online.

Shop our selection of Priority Mail Shipping Supplies on the USPS.com Postal Store

After a postal employee formally accepts your USPS Marketing Mail, you mail your trays or sacks of USPS Marketing Mail via Priority Mail to the postal facility nearest the final destination of your mail.

Priority Mail ® service offers a variety of Flat-Rate Boxes and Envelopes that ship for the same price to any domestic address, regardless of how much they weigh or how far they’re going.

Shop our selection of Priority Mail Shipping Supplies on the USPS.com Postal Store

Priority Mail Express items, including Priority Mail Express Flat Rate shipping products, are delivered in 1-3 days to most U.S. locations. See USPS economical prices, free shipping boxes, and how to print …

If you're going to use Priority Mail and Priority Mail Express service, the boxes come in standard sizes and you can get them at your Post Office ™ location or order online, free!

The Priority Mail Flat Rate® Medium Box is a quick, easy, and convenient way for you to ship USPS Priority Mail® packages. The Priority Mail Flat Rate® Medium Box features predetermined rates …

With Priority Mail® Next Day, the expected delivery date reflects a delivery time of 1 business day and is based on the specified origin, destination, and drop-off time in most cases. The expected delivery …

Shop our selection of Boxes, Priority Mail Shipping Supplies on the USPS.com Postal Store