Usps Priority Mail Rates 2025. What are the 2025 usps flat rate box sizes and prices? Postal service filed notice with the postal regulatory commission of mailing services price changes to take effect july 14, 2025.

Postal service filed notice with the postal regulatory commission of mailing services price changes to take effect july 14, 2025. Priority mail express and priority mail domestic shipments must have an applicable usps tracking ® barcode to qualify for included insurance.