This paper provides an in-depth analysis of various cross-border air freight methods, including commercial airlines, all-cargo aircraft (block space/charter), international express, air freight line, and third-country transshipment. It compares their timeliness, cost, cargo volume requirements, customs clearance capabilities, and flexibility, offering practical advice on choosing the appropriate air freight method. Furthermore, it explores the future trends of cross-border air freight, helping businesses select the optimal logistics solution in international trade to reduce costs and improve efficiency. The analysis aims to empower businesses to make informed decisions regarding their air freight strategies.