is ground advantage the same as first class

is ground advantage the same as first class is a common question regarding USPS services. USPS Ground Advantage is a cost-effective service for shipping packages within the U.S. with delivery times typically ranging from 2-5 business days, while First-Class Mail offers faster delivery for lighter packages and letters, usually within 1-3 days. Ground Advantage offers more affordable rates for heavier parcels compared to First-Class Mail, but First-Class is generally the better option for smaller, lighter items.