As is traditionally the case for new alliance members, BA is offering double Avios when you fly with TAM and US Airways.
The TAM offer runs from 1st May to 31st May.
The US Airways offer runs from 31st March to 30th June, which is obviously a lot more practical.
‘Double Avios’ will be based on the base Avios points to be earned from the flight, and does not include any cabin bonus.
There is no need to register for the promotion – you will receive your double Avios automatically.
If you collect American Airlines miles or any other oneworld programme, there will probably be a similar offer available – check the programme website for details.