Originally Posted by
cesco.g
It's kind of a headscratcher that 300nm seem to make such a difference !? - not questioning your assessment though, EWR764.
At the extreme margin of the airplane’s range, it makes a difference. You’re basically trading seats for fuel, at that point, so every little bit counts, and 300nm is material both in terms of distance and in its effect on P&L.
The 789 is an incredibly capable airplane, but it has its economical limits.