Originally Posted by
Stormbel
Edited at 01:08.
Unless my calculations are wrong I should be able to see flights for 20 April 2023.
Revenue flights on the app show 20th but don't show ba flights past 19th, for example HND, and Avios flights say that I can only book up to 355 days and is only showing 19th as the latest date.
Your calculations are correct. After 0100 London 0000 UTC the relevant date has become 1 May.
31+30+31+31+30+31+30+31+31+28+31 = 355 (up to and including 31 March).
Therefore BA should be selling 20 days of April.
And that is exactly what you can currently book - up to and including 20 April.