which shipping carrier is the cheapest

which shipping carrier is the cheapest depends on various factors, such as the size, weight, and destination of the package, as well as the shipping speed required. For domestic shipments within the United States, USPS is often the most affordable option for smaller, lightweight packages. However, for larger packages or international shipments, carriers like UPS, FedEx, and DHL may offer more competitive rates, particularly for expedited services. Many e-commerce businesses compare shipping carriers to find the best deals for their specific needs, factoring in both cost and delivery time.