is first class mail the same as priority mail

is first class mail the same as priority mail is a common postal question. First-Class Mail is a more economical option primarily for letters and small packages under 13 oz, while Priority Mail is faster, allows heavier parcels, and includes tracking and insurance. USPS Priority Mail typically delivers in 1–3 business days, while First-Class can take slightly longer depending on distance and volume. Priority Mail also includes flat-rate boxes and a higher level of customer service. Understanding the differences ensures the right choice for cost, delivery speed, and package type—especially for e-commerce sellers managing logistics and customer satisfaction.