usps first class international rates are the fees associated with sending packages or letters internationally using USPS’s First-Class International Mail service. When users search for “USPS First Class International rates,” they are looking for information about the cost of sending lightweight packages or documents overseas. USPS First-Class International is one of the most affordable international shipping options, but it is primarily limited to smaller packages and envelopes, with weight restrictions of up to 4 lbs for packages and 13 oz for letters. Rates depend on the destination country, package size, and weight. USPS offers international tracking and limited insurance for eligible items, making it a reliable option for affordable international shipping. The service is ideal for sending non-urgent items or low-cost goods internationally and is commonly used by small businesses and individual sellers who wish to minimize shipping expenses.