USPS Air Mail Rates to Australia (Flat Rate Options)

The United States Postal Service (USPS) offers flat-rate shipping to Australia with pricing based on package size, not weight (up to 20 lbs / 9 kg). Current rates:

• Flat Rate Envelope: $28.95
• Flat Rate Small Box: $48.95
• Flat Rate Medium Box: $69.95
• Flat Rate Large Box: $89.95

These prices include tracking and limited insurance. For non-flat-rate parcels, costs vary by weight, dimensions, and service level (First-Class Package International, Priority Mail International, etc.). Use the USPS Price Calculator for exact quotes.

Rates subject to change; check USPS.com for updates.