overnight usps

overnight usps Overnight USPS refers to Priority Mail Express, the fastest domestic service offered by the United States Postal Service. Deliveries typically occur the next day or within 2 days, depending on location and time of mailing. This service includes tracking, proof of delivery, and up to $100 insurance. It’s available 365 days a year in many locations, including Sundays and holidays. Overnight USPS is widely used for urgent letters, business documents, and last-minute gift deliveries with guaranteed arrival.