We were warned, and therefore we were prepared: flights out of Cusco are inherently unpredictable because of the weather here at altitude, and the incredibly tight landing & takeoff paths through the surrounding mountains that are easily affected by the weather. So what happened this morning? Our 7:20 flight from Cusco to Lima, which would have allowed us to connect to the single daily flight from Lima to Guayaquil, was cancelled. As was every other morning flight out of here - we're now scheduled to depart at around 1:00 p.m. Which means missing the connection to our Guayaquil flight, and an unplanned stopover at the Lima Airport Ramada, so we can catch the same flight tomorrow. Fortunately we built an extra day into our schedule as a contingency against any problems with our connections.