usps how fast

usps how fast depends on the service selected. First-Class Mail typically delivers in 1–5 business days, while Priority Mail shortens that to 1–3 days. Priority Mail Express is the fastest USPS service, guaranteeing overnight delivery to many locations. Delivery speed may vary due to weather, volume surges, or incorrect addressing. USPS provides estimated delivery dates at checkout and on receipts. Knowing each service level helps choose the right balance of cost and speed.