what is the flat rate for priority mail boxes?

Shipping Services price adjustments vary by product. The proposed prices, approved by the Postal Service Governors, would raise Shipping Services product prices approximately 3.1 percent for Priority Mail service, and 3.1 percent for Priority Mail Express service.

Postal Service filed notice with the Postal Regulatory Commission (PRC) today of price changes for Shipping Services to take effect Jan. Postal Service is also supporting mail by requesting PRC approval for two mail products focused on local communities.Rate changes will contribute to $40 billion of investments in people, technology, and infrastructure over the next 10 years to modernize and improve the Postal Service’s operations and customer experience.Pricing actions part of balanced approach under “Delivering for America,” the Postal Service’s 10-year plan for achieving financial sustainability and service excellence.Postal Service continues to offer some of the lowest letter-mail postage rates in the industrialized world and a great value in shipping as we enhance our reliability and expand our product offerings in service to the American people.

What is the flat rate for priority mail boxes?