The United States Postal Service is ... the Priority Mail Express flat rate envelope (size 12-1/2″ x 9-1/2″) will jump from ...

A larger Flat Rate Box means a higher rate increase. ships at the lowest cost compared to FedEx and UPS each and every time. USPS's shipping rates tend to equal those of UPS and FedEx Ground as the ...

Shipping costs went up on January 19. These hikes were approved by the USPS Board of Governors in November of 2024. Priority Mail rates are up 3.2%. With rates stating at $10.10 for Flat Rate ...