The next five-day strike is due to start at midnight on Sunday
British Airways cabin crew who have been on strike are returning to work for one day before the next five-day stoppage begins on Sunday.
It comes after talks between the airline and the Unite union ended without an agreement.
The two sides are locked in a row over pay, staff levels and work conditions.
Despite the brief break before the second five-day strike, dozens of BA flights scheduled for Saturday are still set to be cancelled.
The Daily Telegraph quoted the airline as having criticised the "impossibly" short break between strikes for not providing enough time for a normal service to resume.
However, the airline says it is increasingly confident about its ability to withstand the impact of the strike when it resumes.
On Friday, conciliation service Acas said talks had been adjourned and it would now try to arrange futher negotiations.
Unite also wants the travel perks of striking workers to be reinstated and disciplinary action against others to be cancelled.
Unite says 121 flights out of 333 scheduled to leave Heathrow on Friday have been cancelled.
However, BA says it is flying 70% of passengers.
A third five-day strike is due to start on 5 June.
Unite has said it will call off the industrial action if the airline restores travel concessions to staff who previously went on strike.
Joint general secretary, Derek Simpson said this would not cost the airline anything, and accused BA chief executive Willie Walsh of "blocking a deal".
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