usps priority mail flat rate international

usps priority mail flat rate international USPS Priority Mail Flat Rate International offers a fixed-rate shipping option for international parcels. Regardless of the weight or destination (within specific weight limits), customers can send items using one of the USPS Flat Rate Boxes or Envelopes at a set price. As of 2025, international flat-rate shipping starts at around $26.90. This service includes tracking and insurance for peace of mind, and delivery times typically range from 6 to 10 business days, depending on the destination country.