Most passengers are familiar with the small, round button on armrests that controls seat recline. However, many are unaware that aisle and middle seats often feature a second, hidden button. This button allows the entire armrest to be lifted, providing easier access and exit.

This button is located on the underside of the outermost armrest of an aisle seat. To find it, reach beneath the armrest, near the hinge that connects it to the seat frame. Once pressed, the armrest can be lifted to be parallel with the seat back.

Lifting the armrest eliminates pressure against a passenger's side, creating valuable extra space for movement. This technique is also beneficial upon landing, offering more room to stand up and retrieve luggage from overhead bins.

Many passengers are unaware of the button for extra space. *Photo: T+L*

When the armrest is raised, passengers should be mindful not to extend their legs, elbows, or arms into the aisle. Doing so could obstruct other passengers or lead to accidental collisions with service carts.

Despite its utility, many travelers remain unaware of this feature, as it is not universally available on all aircraft. According to the US Federal Aviation Administration (FAA) regulations, aircraft with 30 or more seats must have at least 50% of aisle seats in rows designated for passengers with reduced mobility equipped with these movable armrests.

Another factor is flight safety. While some believe raised armrests facilitate faster movement during emergency evacuations, FAA tests indicate that armrests in the upright position can actually obstruct the aisle. Consequently, armrests, like seatbacks and tray tables, must be lowered during takeoff and landing.

To determine if a seat offers this feature, passengers should consult the airline's website and its seat maps. Many airlines provide detailed information about their aircraft fleet, including diagrams that specify which cabins, rows, and seat locations are equipped with movable armrests. Alternatively, passengers can inquire with check-in staff at the airport counter.

Tam Anh (according to Travel + Leisure)