This study proposes and tests a comprehensive model (with demographics, informal digital learning of English, ideal/ought-to L2 self, L2 enjoyment, and self-perceived communication competence) of face-to-face and digital communication anxiety's relationship to willingness to communicate in a second language (L2 WTC) within in-class, out-of-class, and digital contexts. A structural equation model of survey responses from 1,269 Koreans learning English as a foreign language (746 secondary and 523 university students) showed that in all three settings, students with lower anxiety showed greater L2 WTC. Within in-class and out-of-class contexts, students with higher self-perceived English ability had lower face-to-face anxiety, which in turn yielded higher L2 WTC. In digital settings, students with a higher ideal L2 self (i.e., a more positive evaluation of their ability to attain the ideal L2 self) showed less overall anxiety (comprising face-to-face and digital anxieties), which yielded greater L2 WTC. These results suggest that future studies can test whether interventions to lower anxiety can increase L2 WTC across communication venues.