Jan 20 (Reuters) - Sydney Airport Holdings Ltd (SYD) :
- Asx alert-sydney airport traffic performance december 2016-syd.ax
- 2016 international passenger growth of 8.9%
- In December, international passenger growth was 7.2% compared to prior corresponding period
- Dec domestic passenger numbers were 1.0% above pcp for month
- Aircraft upgauge for airline's seoul service will take effect in september 2017
- Result for december was driven by domestic load factor improvements and larger aircraft during peak holiday period