Fog at London City airport has forced a number of flights to be cancelled, while snow at Edinburgh airport has closed the runway.
All flights into London City airport this morning have been diverted to another airport, cancelled or “delayed indefinitely” until at least 11.35.
Meanwhile, Edinburgh airport said on Twitter that work is currently underway to clear snow from the runway.
The Scottish airport is likely to remain closed until at least 2pm.
Update at 1pm: Glasgow airport is closed while it clears snow from the runway, but hopes to reopen this afternoon.