Well, glad to see I actually got it right....and I hope Seat 2A will permit me to ask a couple of bonus questions!
At the same time that Frontier and Republic were competing with nonstop Convair 580 service between Kansas City and Omaha, a third airline was flying the route as well with jet equipment. Identify the air carrier and the aircraft type it flew MCI-OMA.
When Frontier finally disposed of its Convair 580 fleet, what airline did they sell these venerable turboprops to and what did this air carrier then do with the aircraft?