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.

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.

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 …

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The Priority Mail Flat Rate® Small Box is about the same size and shape as three stacked DVD cases. It is perfect for jewelry, electronics, event tickets, or other small items that need …

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 …

The Priority Mail Flat Rate® Large Box is a quick, easy, and convenient way for you to ship Priority Mail® packages. It features predetermined rates regardless of weight (domestically) or …

Note: Flat Rate prices are available when material is sent in a USPS - produced Flat Rate Envelope or Box. When sealing a Flat Rate Box or Flat Rate Envelope, the container flaps …

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

This is the Priority Mail® Forever Prepaid Flat Rate Small Box. Great for shipping DVD cases, jewelry, electronics, event tickets, or other small items that need expedited shipping.