Since the early days of air travel, aircraft interior design has matured from cabins based on Pullman railcars, evolving to ocean liner- like interiors, during the era of flying boat travel, to finally develop a proper formal vocabulary after World War II. This later period sees the growing interventions of many well known designers, and one of the best examples is the work of Walter Dorwin Teague for Boeing, starting with the Stratocruiser in 1946 and continuing up to the latest models of the 777.This thesis aims to describe and analyze the historic evolution of interior design as applied to passenger aircraft, to identify the sources of inspiration and esthetic concepts applied throughout history inside passenger aircraft cabins. The thesis also identifies industrial designers and professionals of related fields (decorators, architects, fashion designers) who have developed designs for this area, contributing to setting the state of the art in contemporary aeronautical interior design.