British Airways has cancelled all short-haul flights from Heathrow until midday today because of what they call ongoing technical issues.
Last night, passengers first reported having problems as BA suffers another big outage, causing the website and app to fail and flights to be grounded.
The company said the issues, which may also cause delays for its customers using Gatwick and London City Airport, is related to a hardware issue and is not because of a cyber attack.