Originally Posted by Seat 2A

13. In 1967, this airline was operating service twice a week from Montego Bay (MBJ) to Mexico City (MEX) with a four engine jet. This flight made two intermediate stops en route. Name the air carrier as well as the two stops in the order in which they were made and also identify the aircraft.

My next guess would have been Lufthansa - also with a 707. However, if it's not a 707, but it's still a four engine jetliner, that doesn't leave many choices. Let's go with Mexicana operating a Comet 4C.