Just to emphasise that eligible flights that count towards the four needed can be either marketed
or operated by BA, or they must be marketed
and operated by IB. In the above example it is IB marketed but not IB operated so wouldn't count.
http://www.britishairways.com/travel...s/public/en_gb
Eligible flights are defined as those flights marketed or operated by British Airways and those flights marketed and operated by Iberia.
-'Marketed' means the flight will have a BA flight number (in your itinerary or on your ticket).
-'Operated' means the aircraft that you travel on is a British Airways aircraft (including franchises and BACityflyer).
-'Marketed and operated by Iberia' means the flight will have an IB flight number and the aircraft you travel on is an Iberia aircraft (including franchises).
Reward bookings and agency or industry discounted bookings are not eligible.