Yellowcard will be playing a short string of dates leading up to the band's co-headlining Canadian tour with All Time Low. Yellowcard's US headlining dates can be found here and the co-headlining Canadian dates can be found in the replies.
Major props to ATL for actually touring western Canada, seems like they've been coming through Winnipeg once every year since 2011. Maybe I'll go, still haven't seen YC yet either. I don't think they've been here since they toured with The Matches and The Starting Line in 2004.