I just started looking at this,
What I think I will do is drive to Denver, leave my car at the airport (or relatively close).
Book a flight on the latest flight I think I will need from Durango to Denver (currently only $157 on frontier).
If I get to Durango sooner, then I will try and fly standby.
Hopefully, there is a place (bike shop?) where I can leave my bike until I drive back through and grab it on the way back to UT.
Considerably more driving than I would want to do, but I don't see another (self-sufficient) way to do it
g