LONDON (AP) — British Airways worked to get operations back to normal yesterday following a three-day strike by cabin crew that the airline says cost it about £21 million ($31.5 million).

The airline faces a second walkout this weekend — this time for four days beginning Saturday — by crews represented by the Unite union. No further negotiations have been announced.

BA said it operated 273, or 78 percent, of its long-haul flights and 442, or 50 percent, of its short-haul flights over the first two days of the strikes. It is yet to release details for Monday.