A number of tools give details of delays for all airlines at a given airport, and that gives some semblance for things like weather delays. Right now Dallas seems to show as big delays on Flightradar24, and as it happens there are thunderstorms there, so everyone is at risk of substantial delay. I guess if you really want to process that you could then drill through to the arrival and departure schedules on FR24 and split by airline, but that's not what you appear to need. That said, if I was going to DFW right now, or connecting there, then I would be thinking of Plan B.