what is the cheapest way to mail a small package is a common question for individuals looking to send lightweight items without spending too much on shipping costs. The cheapest way to mail a small package typically depends on its weight, size, and destination. For domestic shipping within the United States, USPS First-Class Mail is often the most affordable option for packages weighing under 13 ounces. For heavier packages, USPS Priority Mail offers reasonable rates for small to medium-sized shipments. Other carriers such as UPS and FedEx also offer affordable rates for small packages, with UPS Ground being a competitive choice for larger shipments. For international shipping, using economy services offered by carriers like USPS or international freight forwarders can be the most budget-friendly option. Always compare rates based on the specific details of the package to find the most economical shipping solution.