Click or tap on the ad to reveal the answer.

How to guess it?
There are very few clues in this advertisement. The major one is in the little airplane at the bottom. It's a Boeing 707. You can also take a look at the very big accent put in the "pride" within this airline. It's even in their slogan: "The Proud Bird with the Golden Tail". Only one airline had that slogan back when their planes had that color scheme: Continental Airlines.Once again, I must stress the importance of the introductory text. It is specifically stated that the advertisement was from the 1960s, yet some people submitted airlines that didn't exist back then.