The carrier — the largest by passenger traffic at San Antonio International Airport and Austin-Bergstrom International Airport — is ending cabin service earlier on all flights, requiring passengers to do the usual pre-landing procedures such as ensuring seatbelts are fastened and returning their seats to an upright position earlier in the flight.

Southwest Airlines is ending its cabin service earlier starting next month. Beginning on Dec. 4, a company spokesperson says flight attendants will begin preparing the cabin for landing at an altitude of 18,