A statement on the BA website said: “Mixed Fleet Unite, which represents one of our five cabin crew fleets, is threatening to hold further industrial action.
“If you are due to travel on Friday 17, Saturday 18, Sunday 19 or Monday 20 February we will once again ensure that all of our customers travel to their destinations.
“Please do not call our contact centres, as at this stage they will not be able to provide any more details than are contained here.”
The airline said it will publish contingency plans on February 14 to customers who have bookings on the four days of threatened industrial action.
Unite says that since 2010, all new British Airways cabin crew employees join what is called "mixed fleet", where despite promises that pay would be 10% above the market rate, basic pay starts at just £12,192 with £3 an hour flying pay, BBC News reported.
