United Airlines has a well-managed fleet. Even with the MAX 10 delays and other MAX disruptions, it has the most fuel-efficient fleet among the big four US airlines.
We must provide evidence to support this statement, so here we go.
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.