If I don't have support labeled in one of my slots when alone, I usually wait about 4-5 minutes. When I'm queuing with people who aren't playing support, either, it takes longer; sometimes we'll be waiting 8+ minutes. A couple of nights ago, we waited over 15 minutes for a queue. At that point, we wondered why the hell Riot removed TeamBuilder when we're getting THOSE queue times for something that's supposed to be faster a better (when we're not even choosing a single champ/role and still need to go through Picks/Bans). It's getting ridiculous. Riot just removed two queues in TeamBuilder and Dominion, and we're stuck with this. The hell.
Hey, at least when support is somewhere in my group, we get a match instantly. -shrug-