AliExpress offers multiple shipping methods to dropshippers for word-wide Shipping, of which the most common and reliable is ePackets. Most suppliers offers FREE worldwide shipping, express shipping from various postal services like UPS, FedEx, DHL, etc.
ePacket service is dropshippers friendly as it is the cheapest service which offers order tracking facility and delivers parcels in 7-20 days. Another good alternative is Aliexpress Standard Shipping.