Originally Posted by jrl767

21. Seven European airlines serve Chicago. Only two of them offer nonstop flights from Europe. Identify the two airlines and the nonstop routes served.


Based on the statement about Montreal, and recalling a number of earlier questions about foreign carriers operating between Canada and the US, I'm going to toss out a totally random guess here and speculate that we're actually looking for a smaller airline, representing a smaller European nation: Aer Lingus, also operating a 707, ORD<-->Shannon (SNN)

Aer Lingus was indeed one of the European airlines serving Chicago. However, all of its flights to and from ORD were routed through YUL.