Both Seat 2A and jlemon are almost obsessive about mentioning the existence of First Class, so I tend to use the absence of that mention as a way to narrow the field . RDU-XXX-YYY-MCI on a D9S ... Eastern and Delta are certainly candidates, but for some reason I find both of them too obvious ... how about Ozark, stopping at St. Louis (STL) and Columbia (COU)

Ozark is correct, as is St. Louis as one of the stops. Columbia was not a stop however. We're looking for RDU - _____ - STL - MCI.

55. (1995) You’ve had a wonderful week enjoying the sand and surf (not to mention the rum and reefers) in Ocho Rios, Jamaica. Now it’s time to return home to West Elsdon, Illinois – a Chicago suburb located just one mile east of Chicago’s Midway International Airport. Unfortunately there was no direct or even convenient connecting service from Midway Airport and so you had to fly out of O’Hare where a jetway malfunction caused you to miss your connection in Miami and thus a full day of your vacation. Thankfully, one airline offers a single daily two-stop direct flight between Montego Bay and Chicago Midway. You’ve booked a pair of seats and look forward to a hassle-free return home. Please identify the airline, the two intermediate stops and the aircraft type.

Again, narrowing the field (again, unsuccessfully, but that’s half the fun of this Quiz) MBJ-XXX-YYY-MDW, not a D9S ... I’ll try Northwest via Tampa (TPA) and Detroit (DTW) on an A320

This sounds imminently reasonable, but no - we're still looking for a different airline that operated a different aircraft along a completely different routing... Pl-ease, guess again!