Fog was affecting flights to and from London City Airport this morning.
Early morning flights were cancelled to Dusseldorf, Frankfurt, Amsterdam, Zurich, Basel, Glasgow, Geneva and Aberdeen.
At least eight other services were delayed while five inbound flights were cancelled.
Passengers were urged to contact their airlines for more information.
The Docklands airport said: “Due to low visibility this morning flights to/from London City Airport are experiencing disruptions.”