usps ground advantage prices vary depending on the size, weight, and destination of the package. USPS Ground Advantage is an affordable ground shipping option for larger and heavier items, offering delivery within 2-8 business days. The prices for Ground Advantage are typically lower than expedited services like Priority Mail, making it an attractive choice for businesses and consumers looking to ship packages economically. USPS provides a shipping calculator on its website to help customers determine the exact cost based on their package details.