And a big hi from Aeropuerto Internacional Manzanillo-Costalegre (ZLO)! Alaska has one daily flight from LAX, Westjet out of Calgary is three times a week November-April. Flight crew doesn't leave the aircraft, return flight is gone within an hour.
One big bonus of no jetways is they use the rear exit door with a second staircase. Those in the know book seats near the rear of the aircraft for a crafty quick exit and a place near the head of the long line at passport control.