Vonn landed behind Italy's Sofia Goggia and Norway's Ragnhild Mowinckel, who was just .09 seconds behind Goggia. Vonn's time of 1:39.22 was 0.47 back of Goggia.
"I wish I could keep going," said a teary Vonn on NBC. "My body probably just can't take another four years."
Vonn missed the Sochi Olympics while recovering from a torn ACL and a sprained MCL. It was a tough recovery for her to come and compete in what is likely to be her final Olympics, earning her third-ever Olympic medal.
Vonn has one more event in PyeongChang. She will compete in Thursday's Alpine skiing combined event.