British Airways on Monday said it was forced to cancel all flights operations for today and tomorrow (Tuesday) after it's pilot union went on strike over a heated pay dispute with the airline. "We put forward a proposal to BA management last Wednesday that would have enabled us to call off the strikes for Monday and Tuesday," the British Airline Pilots Association wrote on Twitter. But the "BA didn't reply," the post added. Responding to the tweet, the British Airways said in a statement today that it was "ready and willing to return to talks with BALPA."

"We understand the frustration BALPA's (British Airline Pilots' Association) strike action has caused our customers. After months of trying to resolve pay dispute, we're extremely sorry that it has come to this. We remain ready and willing to return to talks with BALPA," the statement said. The statement read that the airline was forced to cancel so many flights because "with no detail from BALPA on which pilots would strike, we had no way of predicting how many would come to work or which aircraft they are qualified to fly."