British Airways’ passengers face two weeks of disruption after cabin crew voted to strike in a long-running dispute over pay and benefits.
The industrial action is scheduled to start at 0001 on Saturday July 1, and run until 2359 on Sunday July 16.
Union Unite said the strike had been called after BA claims that crew who previously walked out have not had their bonuses or benefits, including free and discounted travel, restored.
BA said that the proposed action was "extreme and completely unnecessary".
Last week Unite suspended a planned four-day strike, which had been due to start today, “in a bid to resolve the dispute through fresh talks”.
Unite has accused the airline of failing to send key decision makers to the talks at conciliation service Acas.
Unite assistant general secretary Howard Beckett said: "The refusal by British Airways bosses to meaningfully consider our compromise offer is deeply disappointing.
"It now means British Airways faces an entirely avoidable two-week strike and prolonged legal action on behalf of over 1,400 mixed cabin crew."
The airline said in a statement that it would fly all customers to their destinations, as with previous periods when Unite had called mixed fleet strikes.
It described the action as "extreme and completely unnecessary", saying it had reached a deal with the union on pay and urging the union's members to vote on the proposals.