British Airways cabin crew have voted by more than 8-1 to stage fresh strikes in their long- running row with the airline.
The Unite union said its members backed industrial action by 83% in a turnout of 72%, showing their "determination" to continue the dispute.
Of the 10,000 crew polled, 83% of the 6,981 who returned valid ballot papers voted in favour of strike action.
Unite said this vote - the fourth official ballot in two years - reflected the "continued resilience" among the crew.
General secretary Len McCluskey said: "This vote shows that cabin crew remain determined to win justice.
"We urge BA's boardroom to see this as a clear message that they must think again about how to regain the trust and confidence of a significant part of their cabin crew operation.
"We continue to be in discussions with the company to find a solution to this long-running dispute."
Unite said 5,811 cabin crew voted in favour of strikes, with 1,170 against.
The vote raises the prospect of fresh strikes over the Easter period, a year after union members launched a wave of walkouts which cost the airline tens of millions of pounds.
A BA spokesman said: "This is a time for co-operation, not confrontation.
"We began talks with Unite earlier this month, and those talks are continuing. We hope they will bring an end to this dispute."