For the first time in British Airways' history, pilots at the airline are set to go on strike next month.
The pilots, who are members of the British Airline Pilots Association, has given notice to British Airways of the strike on September 9, 10 and 27.
In a statement, BALPA sad, "In what is British Airways' centenary year, this will be the very first time its pilots will go on strike. They do so as a last resort and with enormous frustration at the way the business is now being run."
The union said it had put forward a number of packages to resolve the dispute but British Airways did not accept any of them. Following discussions with its members, it said that BA's most recent offer will not gain the support of a majority of its pilots.
Members voted unanimously (93%) in favour of taking industrial action.
It said a day of strike action will cost BA around £40m and 3 days will cost in the region of £120m. "The gap between BA's position and BALPA's position is about £5m. Our proposal remains on the table should BA wish to reach agreement prior to strike action," the statement read.