Google has predicted flight delays for a while, but only if you've searched for a flight yourself. Wouldn't it be better if it warned you before you packed your bags? It will soon. In addition to bringing delay predictions to Assistant, Google is rolling out proactive warnings over the next few weeks. If your post-holidays return trip is likely to start late, Assistant will both let you know and provide a reason if one is available. You'll know to grab an extra book or TV episode for that longer wait at your gate.