British Airways cabin crew began their 48-hour strike in a row over pay disputes today.
As a result of the industrial action, a total of 22 flights out of 800 at Heathrow have been cancelled.
Destinations affected by the cancellations include Hamburg, Dusseldorf, San Jose, Oslo and Aberdeen.
A small number of Heathrow flights will be ‘merged’ (meaning altered flight times for some passengers), but BA said all flights to and from Gatwick and London City airports will operate as normal.