upsp first class

upsp first class is a USPS service that offers affordable rates for mailing small items, letters, and packages within the United States. First-Class Mail is one of the most economical ways to send lightweight packages and documents, with delivery typically taking 1 to 3 business days. First-Class Mail includes both letters and small parcels, and it is ideal for individuals and businesses that need a cost-effective shipping option. Prices for USPS First-Class Mail start at around $0.66 for a single letter, and the rate increases depending on the weight and size of the package. For small, non-urgent items, USPS First-Class is a reliable and budget-friendly choice.