David Wang
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Updated on June 23, 2026

USPS Priority Mail International standard and Express Service

Priority Mail International is an affordable option when sending letters and parcels to more than 180 countries around the world. Delivery is typically within six to ten business days, depending on the origin and destination. Transit time between rural or remote areas may be longer. The service includes USPS Tracking and free package pick-up where available. Insurance cover may also be purchased to protect items for up to $5,000, depending on the destination country. Rates start from $29.25 at Post Office locations. The exact price will depend on the dimensions, weight and destination of the item being sent. The maximum weight for sending an item by Priority Mail International is 70 pounds.

A Flat Rate service is also available for Priority Mail International. Free shipping supplies including envelopes and boxes may be ordered online or picked up at a Post Office location. When ready, the item can be dropped off at a mail box or at a local Post Office. Flat Rate Priority Mail International is available for large and medium boxes weighing up to 20 pounds. Flat Rate Envelopes and Small Flat Rate Boxes are also available for consignments weighing up to four pounds.

Items send with Priority Mail Express International are generally delivered within three to five business days in most major markets. The exact delivery time will depend on the origin and destination of the item. Priority Mail Express International is available from $35.25 at Post Office locations.

The service includes a variety of features, including free shipping supplies. Boxes, envelopes and other shipping supplies can be ordered online or at a Post Office. The service also includes USPS Tracking at no additional cost. Priority Mail Express International also includes up to $100 insurance cover for documents and up to $200 for merchandise, as well as free package pick-up where available. Additional coverage may be purchased for up to $5,000, depending on the destination country. Guaranteed date-certain service and money-back guarantees are offered when sending items to Australia, China, France (excluding Corsica), Hong Kong, Japan, South Korea, Singapore, Spain (excluding the Canary Islands) and the United Kingdom.

The Priority Mail Express Flat Rate option includes free envelopes and boxes for sending items to more than 180 countries. In addition to free shipping supplies, the service is available with no weighing or rate calculation when sending individual items. The envelope or box can be dropped off at a blue UPSP mail box or at a Post Office location. Priority Mail Express International Flat Rate Boxes are used for sending consignments weighing up to 20 pounds, while Priority Mail Express International Flat Rate Envelopes may be used for items up to 4 pounds.