Yes. There's a few metrics the airlines care about, the most important is leaving the gate on time. But once you're on the plane they can make you sit there fo

Yes. There's a few metrics the airlines care about, the most important is leaving the gate on time. But once you're on the plane they can make you sit there for however long it is to sit on the tarmac. When I was flying constantly for a month, almost all my flights were on time. FlightCaster did predict 2 flights that were to be delayed despite the planes pushing off on time. We just sat on the tarmac, upwards of an hour, before finally taking off. By the same token, FlightCaster didn't predict the three other flights I was on that was delayed. Either way, the use case is kind of limited. Even if the prediction is true and given enough warning ahead of time I have no means, and in most cases no need, to switch flights. For business travelers that have the expense accounts to make this work, this is a great tool.