Most airplanes are painted white to reflect sunlight, keeping the plane cooler and reducing the need for air conditioning, which helps save fuel.

The claim that most airplanes are painted white to reflect sunlight, keep the plane cooler, and reduce the need for air conditioning, thereby saving fuel, is supported by multiple sources. Evidence from Menkor Aviation and Aviation Stack Exchange confirms that white paint reflects sunlight, which helps in keeping the aircraft cooler and reduces the need for air conditioning. This practice contributes to fuel efficiency. Additionally, FactCheckZW supports the claim by stating that white is the most efficient color for airplanes due to its reflective properties and reduced weight compared to other colors. These sources corroborate the claim, providing a strong basis for its accuracy.