Hong Kong's airport has used a newspaper advertisement to appeal to protesters, asking them not to target the transport hub ahead of another weekend of anti-China demonstrations in the city.

"Spare our passengers further disruption," read a half-page ad from the Airport Authority Hong Kong in the South China Morning Post, the territory's main English-speaking newspaper, on Friday.

In the ad, the authority urged demonstrators "not to disrupt the journey of tens of thousands of travelers who use our airport every day."