Domestic air freight cargo divided into three categories, namely: general cargo air transport, air cargo grade, three designated goods by air freight. General cargo tariff code for N. CAAC uniform regulations for each leg cargo freight basis, the basic tariff is 45 kg or less general cargo tariffs, the amount of angular units. Tariff code level cargo is S. Urgent, biological products, rare plants and plant products, live animals, ashes, coffin, fresh perishable goods, valuables, firearms, ammunition, and other special cargo escort cargo freight cargo implementation level, in accordance with the basis of 150% of total tariff close.
Designated goods by air freight code is C. Some large quantities, seasonal, low unit value goods, airlines may apply to establish designated goods tariffs.
In addition, the lowest domestic air cargo freight is 30 yuan per ticket, the code is M.
国内空运货物的运价分为三类，分别是：普通货物空运、等级货物空运、指定商品空运三种运价。普通货物的运价代码为N。民航总局统一规定各航段货物的基础运价，基础运价为45公斤以下普通货物运价，金额以角为单位。等级货物的运价代码是S。急件、生物制品、珍贵植物和植物制品、活体动物、骨灰、灵柩、鲜活易腐物品、贵重物品、枪械、弹药、押运货物等特种货物实行等级货物运价，按照基础运价的150%计收。
指定商品空运运价代码是C。一些批量大、季节性强、单位价值低的货物，航空公司可申请建立指定商品运价。
另外，国内空运货物每票最低运费为人民币30元，代码是M。
