The median ER wait across Ontario's reporting emergency departments is currently about 4h 10m, updated live and changing through the day. Ontario has 166 emergency departments tracked here. CIHI grades it B for wait to be seen, 9 in 10 patients within 4.5 h. Right now the shortest posted wait is 39 min at Lakeridge Health - Port Perry; the longest is 13h 15m at Victoria Hospital (LHSC, London). Compare all provinces on the report card →
For anything non-urgent, going at a calm hour can mean a much shorter wait.