Here is my response to the answers provided above by miniliq to questions 7), 8) and 9).....
7) HNL is correct with regard to the international destination as a YYZ-YWG-HNL routing was flown once a week on the weekends in the late winter of 1979 with a B747. However, the airline was actually CP Air.
8) Delta is correct with B727-200 service; however, DL was not flying the DC-9-30 DFW-SHV at this time. Instead, seven (7) daily DFW-SHV flights were operated exclusively with 72S equipment. Most of these flights continued on eastward to ATL via one or more intermediate stops in such places at BHM, BTR, JAN, MLU (birthplace of Delta!), etc., etc.
And as for the other airline? It was actually Frontier with twice a day B737-200 service as Texas International did not serve the DFW-SHV market at this time. Actual routings of both FL flights were DEN-DFW-SHV.
9) Close enough to be termed correct! In the fall of 1979, Air Florida operated a total of five (5) flights on a typical day MIA-EYW with B737-200 equipment via the short 4800 foot runway at Key West.