UPS and Shippo Shipping Costs Compared to USPS

Both UPS and USPS base rates on weight, dimensions, destination and speed. UPS generally offers lower prices for larger or heavier parcels and for expedited services, while the United States Postal Service (USPS) tends to be cheaper for small, lightweight packages and domestic deliveries. Dimensional weight, which uses a package's volume as well as its actual weight, can shift cost advantages between carriers.

Shippo operates as a shipping aggregator, providing discounted USPS rates by leveraging the combined shipping volume of its users. While Shippo can often be cheaper than shipping directly with USPS, the discounts apply only to certain services and shipment characteristics, so savings are not guaranteed for every package. Users must compare specific service tiers, consider insurance and tracking options, and account for any hidden fees before choosing the most cost‑effective carrier.