When should I expect to feel the stomach drop on a plane? Expect to feel it about twenty seconds after takeoff. This is when, to reduce noise, the pilots reduce engine power and lower the nose to compensate for the reduced power.

Many people experience a "stomach drop" sensation during takeoff, but it is actually a vestibular illusion caused by the transition from acceleration to a steady climb. When the plane lifts off the runway and the pilot "pitches up" into a climb, the aircraft's rate of acceleration often decreases slightly. This change in force can make your inner ear and brain perceive that the plane is "falling" or "sinking," even though it is actually climbing rapidly. It is similar to the sensation you feel when an elevator starts to descend. This feeling is often more pronounced on certain aircraft, like the Airbus A321, due to the way power is managed after liftoff. For some, the sensation is also caused by the retraction of the landing gear or the adjustment of the wing flaps, which slightly alters the lift and creates a brief "weightless" feeling. To minimize this, focusing on a fixed point or tightening your core muscles can help your body process the shifting gravitational forces more comfortably.