Priority mail express flat rate envelope postage

The convenience of Priority Mail Express!

As of 2022, the postage rates for Priority Mail Express Flat Rate Envelopes are as follows:

Domestic (within the United States)

• Small Flat Rate Envelope (up to 1 oz): $25.50
• Medium Flat Rate Envelope (up to 2 oz): $26.50
• Large Flat Rate Envelope (up to 3 oz): $27.50

International

• Small Flat Rate Envelope (up to 1 oz): $34.50
• Medium Flat Rate Envelope (up to 2 oz): $35.50
• Large Flat Rate Envelope (up to 3 oz): $36.50

Please note that these rates are subject to change, so it's always a good idea to check the official USPS website or consult with a postal representative for the most up-to-date information.

Additionally, keep in mind that Priority Mail Express Flat Rate Envelopes have a maximum weight limit of 3 oz, and any additional weight will require additional postage.