More than 600 Border Force officers at Heathrow airport will strike over 11-14 April in a dispute over a new roster and changes to shift patterns.
It comes after Border Force members of the Public and Commercial Services Union (PCS) at Heathrow last month voted by 90% in favour of action.
The PCS said the proposed changes to its members’ working arrangements "will particularly affect workers with disabilities or those with caring responsibilities".
Speaking late last week, PCS general secretary Fran Heathcote said: “Ministers have 14 days to withdraw these unfair and unnecessary proposals or our members at Heathrow will take strike action."