Click or tap on the ad to reveal the answer.
How to guess it?
No major clues to help you this time! One was particularly misleading, and it was that the mystery airline was the one that carried the most passengers in the free world. Many readers confused the notions of "most passengers carried" to "largest airline". The largest airline "in the free world" (thus, excluding communist nations, i.e. USSR!) was indeed United Airlines, but this is not the answer we were looking for.If you would have actually noticed the major detail... the overwhelming amount of BLUE in this ad. Look at the colors of the "scenery" elements. Everything is blue. What other airline could possibly be more "blue" than this one. And for the record: Delta Air Lines stole Eastern's title as the airline with most passengers in either domestic or international routes. British Airways, however, remains the airline with most passengers on international routes, being the so-called "World's Favourite Airline".