When you pick 30 min 1 hour etc are you picking WHEN you are notified of any changes or 30 min before flight they tell you something.

So if I pick an hour on that pull down, do they tell me of any changes 1 hour before departure or if there is a change greater than 1 hour in magnitude. Sorry if I am over thinking this.

We have a tight connection at DFW and just want to check the phone when we land from ORD at DFW to see how flight 5 is doing. It has been real good lately. I just hope the ORD flight is ok or we miss it.