Beginning on Dec. 4, a company spokesperson said, flight attendants will begin preparing the cabin for landing at an altitude of 18,000 feet (5,486 meters) instead of 10,000 feet (3,048 meters).

Southwest Airlines says it is ending cabin service earlier on flights, requiring passengers to do the usual pre-landing procedures such as ensuring their seatbelts are fastened and returning their

Additional changes are coming to Southwest Airlines this week as the airline says "nothing is more important" than the safety of customers and employees.

Southwest Airlines says it is ending cabin service earlier on flights, requiring passengers to do the usual pre-landing procedures such as ensuring their seatbelts are fastened and returning their seats to an upright position earlier than before.

The change in procedures is designed to reduce the risk of in-flight turbulence injuries for our crew members and customers. It is the result of the airline’s robust approach to safety management,” Southwest told the outlet.

Southwest Airlines is ending in-flight service earlier than it previously did in an effort to reduce the risk of injury to its cabin crews.

For passengers, that means returning their seats to an upright position and other pre-landing procedures earlier than before.