Boeing 737 MAX Vs. Airbus A320neo: Which Aircraft Gets More Miles Per Gallon?

Between the popular A320neo and Boeing 737 MAX families, the Airbus A320neo has an edge in efficiency. Among the three engine types these two aircraft carry, the A320neo’s CFM International LEAP-1A is considered to have a slight edge in efficiency. This edge in fuel efficiency goes some way to explaining why the A320neo and the LEAP-1A engine are the more popular options for airlines today.