By the mid-1960s, the Deltic-hauled "Flying Scotsman" was achieving a 5-hour 55-minute time from King's Cross to Edinburgh with one stop at Newcastle and this was the fastest ever timing, beating the pre-war A4-hauled "Coronation" service's 6 hours, and without the priority over other traffic accorded to the earlier LNER train. As the East Coast Main Line was upgraded, times dropped still further and by the mid-1970s the "Flying Scotsman" was reaching Edinburgh in 5 hours 27 minutes, still with one stop at Newcastle for a driver change.