that statement makes no sense! Lets paint by the number here;
Lets say we have a plane in flight, two molecules of air hit the front of the wing. One molecule goes over the top of the wing while the other goes underneath the wing.
The speed inwhich the two molecules travel have been predetermined by the engine and propeller. At this given speed are you saying that the two molecules reach the rear of the wing at the same time simply by having the molecule over the top of the wing go faster?