Use our instant rate calculator to find a USPS Priority Mail Express standard or flat rate plan that suits your needs. Unlike Flat Rate Shipping, regular or standard shipping calculates rates based on a package’s weight, size, destination, and service to determine your shipping prices. Flat Rate Shipping, as the name suggests, offer a fixed and flat rate for all shipments, irrespective of their size or weight. Weight 20 lbs.Shipping methods have their own advantages and disadvantages. weight 4 lbs.), or Medium and Large Flat Rate Boxes (Max. Weight 70 lbs), Flat Rate Envelopes or Small Flat Rate Boxes (Max. Priority Mail International pricing varies by country price group, either in packages charged by weight (Max. For all other GXG items, prices based on dimensional weight or actual weight, whichever is greater, and country price group. Prices for items mailed in USPS-produced GXG envelopes based on weight and country price group. weight 4 lbs.) Back ^ to legal disclaimer 10ġ1. Weight 70 lbs) or Flat Rate Envelopes (Max. Priority Mail Express International pricing varies by country price group, either in packages charged by weight (Max. Visit the International Mail Manual for Priority Mail International insurance details. Not available for Priority Mail International Flat Rate Envelopes or Small Flat Rate Boxes. Visit the International Mail Manual for Priority Mail Express International insurance details. Limitations may apply for certain destinations. Actual number of days may vary based on origin, destination, and customs delays.

You must pay postage and mail your letter or package at a Post Office™ location. You can receive date-certain service with a money-back guarantee to select locations. See Publication 141 for more information on insurance. See Publication 141: Global Express Guaranteed Service Guide for more detailed information. See Publication 141 for more information.

Priority large flat rate box cost