British Airways (BA) has won a High Court battle to avert the cabin crew strike, which had been due to start tomorrow.
Mr Justice McCoombe granted a last-minute injunction against the first of four planned walk-outs by members of union Unite.
According to reports, the decision was based on a legal technicality, over the union's failure to send everyone eligible to vote a breakdown of the results of the ballot.
A BA spokesperson said the airline is "delighted" that Unite's planned "extreme and unjustified strike" cannot go ahead.
"We hope all sections of Unite, including the leaders of the cabin crew branch Bassa, will take this opportunity to pause and focus on achieving the early and peaceful end to this dispute which the travelling public and all our employees want," said the airline.
But some disruption to flights may be unavoidable, warned BA.
"We are sorry the court judgment cannot undo the disruption already suffered by some customers who were due to travel during the early days of the union's industrial action," said BA
"As Unite knew, we had to announce last Thursday the rearrangement of our Heathrow schedule to give customers as much notice as possible about changes to their travel plans necessitated by the strike call.
"Ash disruption permitting, we will aim to restore a full flying programme at Heathrow by the weekend. We will also offer a full programme at Gatwick and London City, as planned."