Does a plane dump fuel before landing?
Ava Mcdaniel
Updated on July 22, 2026
Airplane fuel can be quite heavy, sometimes weighing as much as 6 pounds a gallon. If an airplane holds 5,000 gallons of fuel, that can add up to 30,000 lbs. to the plane's weight. In fact, lowering its weight is the main reason why airplanes dump fuel right before landing.