Originally Posted by jrl767

10. Only one airline flies direct from New York City to the state of South Dakota. Thankfully, the aircraft has a First Class cabin because there are four stops along the way and comfort will be important over the six hour journey. Your job is to identify the South Dakotan airport served and then identify the airline, the aircraft and the four enroute stops...

I suspect this was an Ozark DC-9 that stopped at Washington Dulles (IAD), Champaign/Urbana (CMI), Peoria (PIA), and Sioux City (SUX) before terminating at Sioux Falls (FSD)

Your suspicions are correct, J - First Class "Go Getters" could also enjoy a snack and hot breakfast enroute, served atop Ozark's distinctive yellow table cloths with dark green napkins.

Ozark OZ 907 New York (LGA) 800a-858a S Washington DC (IAD) 928a-1004a B Champaign (CMI) 1024a-1049a Peoria (PIA) 1109a-1210p Sioux City (SUX) 1225p-1249p Sioux Falls (FSD) DC-9-30 Daily

12. You’re all set to fly to from Chicago to Billings, Montana for the weekend. Unfortunately, a couple of things have come up at the office that mean you’ll have to switch from your 100p nonstop to something a bit later. A call to your travel agent reveals that unfortunately, no seats are available in any class to Billings until early this evening. But wait! If you can get over to Chicago’s lightly used Midway Airport, there’s a two stop flight departing at 220pm. It’s even got some larger seats up in the front of the aircraft. Book it, Danno! Identify the usual triumvirate, including the two stops enroute.

This pretty well has to be a Northwest Electra, and Minneapolis (MSP) was certainly one of the stops ... how about Bismarck ND (BIS) as the other

An excellent guess, J, but NO! It wasn't Northwest or even an Electra. Please guess again!