I once decided to run that one, because I hoped it was quicker than waiting for skylink, and I was really pushing making that flight. I ended up catching the flight and doubt I'd have made it otherwise. It's was a full 5-minute run for an earlier standby flight and I ended up pretty miserable and profusely sweating. I guess it's easily a 15-20 minutes walk, even at a fairly brisk pace, depending on which gate you start at and need to end up at.