You could fly instead to Albuquerque via Southwest airlines for a total cost equivalent to the difference in air fare between flying into Santa Fe and Durango.
From Albuquerque, take Railrunner to Santa Fe. (ABQ Sunport to Santa Fe depot - $7) http://www.nmrailrunner.com/
http://www.ncrtd.org/ North Central Regional Transit District services Santa Fe, Espanola, and Chama by shuttle bus. If you click on “Espanola area” it says the route to Chama runs on Tuesdays and Thursdays only. Apparently these routes are all free of charge.
So you could plan to fly in on a Monday or Wednesday, stay over at a motel near the airport in ABQ, then the next morning make straightforward connections all the way to Chama, arriving at 1:30pm with plenty of time to eat, relax, maybe find some other hikers in town, then bum a ride the final 10 miles to Cumbres Pass before dark.
blisterfree