is it cheaper to ship ups or usps depends on the size, weight, and destination of the package. Generally, USPS is more affordable for smaller, lighter packages, especially with services like First Class or Priority Mail. UPS may offer better rates for heavier or larger packages, particularly for overnight or expedited shipping. However, for international shipments, UPS can sometimes be more competitive due to its established global network. It’s always best to compare rates using online tools or shipping calculators to determine the most cost-effective option for your needs.