usps overnight rates for letter

usps overnight rates for letter USPS offers Priority Mail Express for overnight shipping of letters and small packages. The cost for overnight delivery of a letter depends on factors such as weight, size, and destination. For a standard letter, the cost of Priority Mail Express starts at around $26.35, with additional fees for insurance or special services. This service guarantees next-day delivery by 10:30 AM to most U.S. locations.