From the BA website, timestamped 1735 today, 17 March ...
After publishing our flying schedules for 20, 21 and 22 March, an increasing volume of cabin crew have offered to work in support of our contingency plans.
This has enabled us to reinstate some previously cancelled flights and provide extra capacity for both longhaul and shorthaul destinations on 20, 21 and 22 March.
These will be loaded back into our systems over the coming hours.