can i overnight a letter with usps

can i overnight a letter with usps is a common question for individuals looking to send urgent mail. Yes, USPS offers a service called Priority Mail Express that allows for overnight delivery of letters, documents, and packages. Priority Mail Express guarantees delivery by 10:30 AM the next day to most U.S. destinations, including PO Boxes. This service is ideal for urgent correspondence, legal documents, or important materials that must arrive quickly. It is more expensive than regular First-Class Mail but offers the reliability and speed needed for time-sensitive deliveries.