The true long-haul aircraft in the Airbus lineup is the A350, the go-to aircraft from Airbus for Pacific-Ocean crossings. But with a nominal 7,200nm range, the A330-900 is no longer the trans-Atlantic aircraft it was. It will be an alternative to the A350 for many trans-Pacific routes.
The A330 started as a mid-range aircraft with less than 4,000nm range. At the time, the A340-300 was positioned as the long-ranger.
With the A340 out of the way and to compete with Boeing's 787, the A330 grew its range 85%. Is it now an alternative to the A350?