Originally Posted by
Worcester
How often do EU261 qualifying Irrops happen to an airline?
It will vary by airline, clearly, depending on their operational performance. In the case of BA, normally the number of flights more than 3 hours late (or cancelled) and where the cause is not ATC / weather (etc) is well, well under 0.5% of flights. Now this year, with virtually a full day of no service at all, and another couple of days of impacted services, this is bound to head to a higher figure, but even then you can see you're still well below 1%.