Fuel burn remains a top priority for airlines. The metric is ASM/Gallon (or litre outside the US). Airlines want the numerator as high as possible and the denominator as low as possible.
This is where upsizing aircraft becomes so attractive. The aircraft’s weight rises less than its capacity.
Co-Founder AirInsight. My previous life includes stints at Shell South Africa, CIC Research, and PA Consulting. Got bitten by the aviation bug and ended up an Avgeek. Then the data bug got me, making me a curious Avgeek seeking data-driven logic. Also, I appreciate conversations with smart people from whom I learn so much. Summary: I am very fortunate to work with and converse with great people.