united states postal service standard shipping is a cost-effective delivery method offered by USPS, typically referring to services like First-Class Package or Priority Mail. Standard shipping is suitable for most domestic packages and provides a balance between affordability and delivery speed. While not as fast as expedited or overnight services, it usually ensures delivery within 2 to 5 business days. USPS also includes tracking for standard shipping options, making it a reliable choice for both personal and business shipments within the U.S.