Air passengers should expect disruptions to their travel plans as Super Typhoon Ragasa bears down on Hong Kong and forces the cancellation of flights, the Airport Authority (AA) warned on Monday.

The authority is anticipating a significant reduction in passenger flights from 6pm on Tuesday as the storm edges closer to the SAR.

While the airport will remain open as usual, it urged travellers to check with their airlines before heading to Chek Lap Kok.

Hong Kong's flagship carrier, Cathay Pacific, has already announced that more than 500 flights will be affected before service is expected to gradually resume during the day on Thursday.

Flights operated by Hong Kong Airlines between 6pm on Tuesday and 6am on Thursday will be axed, while HK Express is calling off over 100 flights.

"We expect that from 6 o'clock [in the afternoon] tomorrow, there will be significant reductions of landing and departure of aircraft because of unfavourable wind conditions. There will be very limited movements. On Wednesday, we expect that most of the movements may be affected," Wing Yeung, the AA’s director of service delivery, said.

Yeung said most eateries and shops at the airport will continue to operate as usual, adding that over 1,000 airport staff will be on hand to provide assistance and distribute water, biscuits and blankets to passengers in need.

He went on to say that the AA will work closely with airlines, the observatory and the Civil Aviation Department to clear the backlog of flights when the weather condition improves.

Yeung said that aircraft parked at the airport will be fuelled to increase their weight for enhanced stability, while some planes have been moved out of Hong Kong for the time being.