Madrid to Sarria

My experience on Easter Monday 2023 making a train connection in Ourense was quite positive. I booked on RENFE for a 20 minute connection which made me quite nervous. The station is much smaller than Madrid Chamartin and only slightly larger than Sarria. My train arrived and departed on time. No problem making the connection so I cannot answer your taxi question. I seem to remember some track construction on that line. As a precaution, check with your train company concerning known delays.