how much is it to overnight a letter usps

how much is it to overnight a letter usps refers to the cost of using USPS’s Priority Mail Express service to send a letter overnight. Priority Mail Express is USPS’s fastest domestic shipping option and guarantees next-day delivery to most U.S. addresses. The price for sending a letter via Priority Mail Express depends on the weight, size, and destination of the item. As of recent rates, the cost typically starts at $26.35 for a flat-rate envelope, but prices can increase for heavier or larger items. This service also includes tracking and delivery guarantees.