Burkina Faso's government has said the country will observe 48 hours of mourning for the victims of Air Algerie flight AH5017.
The plane crashed on Thursday with 116 on board. The wreckage has now been located in Mali but there are not thought to be any survivors.
More than half of the passengers were French with 51 nationals counted on the manifesto.
French foreign minister Laurent Fabius said: "If this catastrophe is confirmed, it would be a major tragedy that hits our entire nation, and many others."
More top news
BA said the strikes will impact "only 1 per cent of our total scheduled flights across the three days."
It's another mild day in the north and west, but cold in the south and central England.
The singer, songwriter and rhythm guitarist for the British rock'n'roll band died on Christmas Eve aged 68.