Originally Posted by YVR Cockroach

15. Identify the seven airlines that serve Las Vegas with all-economy configured jet flights
Identified so far: Southwest, American Trans Air, America West, Private Jet Expeditions (5J), Morris Air and Midwest Express. Just one more left!
The airline we're looking for still flies and now offers First Class

I don't recall any of the airline's flights heading south of the Oregon-California border in the time I flew it but perhaps Horizon (QX)?

As you suspected, we're a little early yet for Horizon, which even in later years never served LAS with anything larger than a DHC-8-400. A good guess, though, as QX does now offer First Class.

You all are going to be kicking yourselves when the answer is finally revealed. The airline in question has been around for quite awhile...