Gatwick Airport says it has "additional teams of engineers, electrical staff and volunteers at the airport to minimise the risk of disruption from potential further flooding" ahead of the high winds forecast over the next 24 hours.
The airport advises passengers to check with their airlines before travelling and leave extra time to reach the airport.
"Replacement bus services and diversions could add up to two hours to journey times, so we're advising passengers to plan their route carefully, check before they travel and allow extra time to get to the airport," the airport said.
David Cameron concedes that more flood prevention work needs to be done in areas like Yalding, where he was confronted by a local.
Within the next few hours, severe gales will hit northern England, Isle of Man and Wales. The rain will exacerbate the flood risk in places.
Three aircraft attempt to land at Birmingham Airport in today's tricky weather conditions.