usps overnight cost letter

usps overnight cost letter refers to the shipping fee charged by the United States Postal Service for sending a letter using USPS Overnight services. The cost varies based on factors such as weight, size, and destination. USPS offers two options for overnight shipping: Priority Mail Express (overnight delivery with tracking and insurance) and First-Class Mail (faster delivery, but not guaranteed overnight). The cost for Priority Mail Express typically starts higher due to the expedited delivery service.