I have not tried pumping in a plane. But i tried pumping in a car which is stuck in a traffic jam and I had no choice but to pump in the car to relief engorgement. i used a nursing cover to do that. if you use a nursing cover, you can pump at your own seat but then the noise may be a little loud and could be embarrassing if you really mind. But i tink there should be an area in the plane which you can pump more privately. mayb can call the airline to ask?