British Airways (BA) has cancelled flights as a safety measure ahead of a second strike by pilots planned for later this month.
The airline announced the cancellations to thousands of passengers for journey's due to take place around 217 September, when pilots in the Balpa union are due to walk out in a dispute over pay.
Earlier this week, BA cancelled around 1,700 flights during the first strike which took place over Monday and Tuesday.
Disruption then continued into Wednesday when the airline said that 150 aircraft were out of place, along with more than 700 pilots and 4,000 cabin crew.
It has been estimated that the strikes have cost BA around £40 million a day.
Pilots have demanded a profit-share scheme and rejected a three-year pay deal worth 11.9%, BA has failed to meet these demands.
In a statement, British Airways said: “It is now a month since we shook hands on a pay deal. We urge [Balpa] to call off their strike and return to negotiations.
“To give our customers as much certainty as possible, we are now contacting all those affected to offer them a full refund or a rebook on an alternative date, destination or airline. We are very sorry that Balpa’s actions will affect thousands more travel plans.”
Balpa says the two-day strike action was a powerful demonstration of the strength of feeling of BA pilots.
The union has urged the airline back to the negotiating table with some meaningful proposals to try to avert the next scheduled strike on 27 September.
Balpa has called on BA to return to negotiations with something positive to resolve this dispute and try to prevent the next strike action on 27 September.