Starting Dec. 4, Southwest flight attendant crews will wrap up in-flight service at 18,000 feet to begin preparing the cabin for landing sooner, a spokesperson for the Dallas-based carrier confirmed to ABC News.

A Southwest Airlines memo has surfaced on aviation blogs and confirmed by Southwest Airlines that Southwest Airlines' flight attendants (aka cabin crew), starting December 4, is to secure the cabin at 18,

From December 4, flight attendants will reportedly begin preparing the cabin for landing at 18,000 feet rather than 10,000 feet.

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,

Starting Wednesday, flight attendants will begin preparing cabins for landing at an altitude of 18,000 feet instead of the current 10,000 feet.

To avoid potential turbulence injuries, Southwest Airlines has made some significant changes to its in-flight services. Starting this Wednesday, Southwest Airlines flight attendants will be preparing cabins for landing at an altitude of 18,