who is cheapest to ship packages

who is cheapest to ship packages depends on factors like package weight, size, distance, and delivery speed. For lightweight domestic items, USPS is generally the cheapest with First-Class Package and Ground Advantage. For larger or heavier shipments, UPS and FedEx may be more economical, especially with negotiated rates. International shipments vary, with postal services offering the lowest base prices, but slower delivery. Comparing quotes using shipping software like Shippo or Pirate Ship ensures the best price for specific needs.