Just to add to this - I hadn’t realised that the redemption finder facility on the BA App is significantly better than on the website.
For a start you can select entire continents if you’re flexible about where you want to go, and it will show you at a glance the cities and number of available flights.
Drilling down to a specific city, you can view a month (or more) at a time, scrolling through horizontal bars for availability of outbound and returns.
Far better than anything on the website if you’re scouting around for places to go, or even if you have a specific city in mind and want to quickly see the availability.
Thanks [MENTION=840468]bisonrav[/MENTION] for bringing up the app, and prompting me to investigate it further!