how long does it take for international shipping usps? USPS international shipping times depend on the destination country and the shipping service selected. For example, USPS Priority Mail International typically delivers in 6-10 business days, offering tracking and delivery to most countries around the world. USPS First-Class Package International Service, a more economical option, generally takes 7-21 business days depending on the destination. For faster delivery, USPS Priority Mail Express International can arrive in 3-5 business days. However, delivery times for all international services are subject to customs processing and other factors, such as holidays or local regulations, that may cause delays. It’s always a good idea to check the USPS website or tracking details to get the most accurate and up-to-date information regarding your shipment’s delivery status. Additionally, some countries may have more unpredictable delivery times due to local customs procedures.