From
https://www.speedbirdclub.com/en/all...ralstrikesep/:
We have been informed of a general strike in Italy on Tuesday 06 September from 10:00-18:00 Local (08:00 - 16:00 GMT).
We are now working on a schedule to try and minimise the impact on our customers, however there will be some cancellations and schedule changes which will be communicated shortly.
Any customer whose flight has been cancelled or retimed are covered by our Conditions of Carriage Guidelines.
We advise all customers to check the status of their flights before proceeding to the airport.
OP: BA 573 has been officially cancelled now.