Cheapest Shipping: UPS vs FedEx vs USPS
By Mike Bannoura
Choosing the right shipping carrier can save you 20 to 50 percent on every package you send. The cheapest option depends on three factors: package weight, package dimensions, and how fast it needs to arrive. There is no single carrier that is always cheapest. At PostNet Denver, we ship via UPS, FedEx, USPS, and DHL, and we compare rates in real time to find you the best deal on every shipment.
USPS is typically the cheapest for lightweight packages under one pound. First Class Package Service starts around $4 to $5 for packages up to 13 ounces. For packages up to 70 pounds, USPS Priority Mail offers flat-rate boxes that can be a great deal for heavy, small items. The Medium Flat Rate Box ships anything that fits for around $16 regardless of weight. If your item fits in the box, this is often the cheapest option for packages over 5 pounds going cross-country.
UPS and FedEx become more competitive for heavier packages and business shipments. Ground service from both carriers typically delivers in 3 to 5 business days and offers better tracking, insurance, and reliability than USPS for high-value items. For packages over 10 pounds, UPS and FedEx Ground rates are often lower than USPS Priority Mail. Both carriers also offer volume discounts for businesses that ship regularly, and PostNet Denver passes those discounted rates to our customers.
Dimensional weight pricing is where most people lose money. Carriers charge based on whichever is greater: actual weight or dimensional weight. Dimensional weight is calculated from the box dimensions. A large, light box can cost the same as a small, heavy one. The fix is simple: use the smallest box that safely fits your item. Do not drop a small product into a large box with extra packing material when a smaller box would work. This single change can cut your shipping costs by 30 percent or more.
At PostNet Denver, we offer a free rate comparison on every shipment. Bring your package in and we will check rates across all carriers and service levels to find the best price for your deadline. We also sell boxes, bubble mailers, and packing materials, and we offer professional packing services if you need help. Whether you are shipping one package or fifty, stop by 1312 17th Street and we will get you the best rate.
