The UK Court of Appeal has just upheld the Unite Union's Strike plans against BA.
It is therefore likely that strike action will begin to affect BA flights from the week-end on.
I understand that the strike will mainly affect flights from London Heathrow. This means Lisbon and Porto may be affected. BA reckons that flights from London Airwick Gatport will not be affected.
See: http://bit.ly/bwbCBM
After the volcano, this is all we need.
Anyway, if you are planning to fly with BA to Portugal over the next month better check your flight situation.