Every month, an airline printed advertisement is displayed for your guessing pleasure on Guess The Airline.
This month, we have an advertisement from a 1970’s issue of The Economist. The name of the airline has been hidden everywhere. The aim is to Guess The Airline.

Vote for your answer below and come back on June 1, 2013 at 08:00 ET (12:00 noon UTC) to find out if you were right!
UPDATE (June 1, 2013): Guess The Airline – May 2013 answer