Originally Posted by
tdracer
The A320 has some carbon bits and pieces. The A220 is close to half carbon composite by weight.
No, I don't have access to proprietary A220 cost information (and I wouldn't share proprietary information if I did). But I do know the sort of cost/benefit analysis that gets done when justifying extra costs to save weight, and planned range has a big effect.
That comment has also been stated in articles about the next narrow body design. For longer range flights the lighter weight, but more expensive construction method, is worth it. For shorter flights the cost/analysis is harder to justify.