usps shipping how long

usps shipping how long USPS shipping how long depends on the service level selected. First-Class Mail typically takes 2–5 business days, while Priority Mail offers 1–3 day delivery across the U.S. Priority Mail Express is the fastest option with overnight service available in most locations. Ground Advantage is more affordable but slower, taking 2–5 business days. Shipping times may vary based on destination, package weight, holidays, and weather conditions. Tracking tools provide real-time updates to help estimate exact delivery dates.