Originally Posted by
jrl767
(a) I'm reasonably certain these were Tucson and Phoenix, although the sequence could obviously could be the reverse
(b) without resorting to GCMap, I think FL only served western Montana nonstop from SLC, so my first guess would be Cheyenne
TUS and PHX are correct, in that order.
The next stop after PHX was DEN, not SLC, and there are a lot of places this aircraft could go from DEN for its final stop.