I am hearing quite a bit of air traffic overhead, more than normal at this time. I'm under the landing flightpath. It has usually quieted down by now, but they are catching up.
Having worked at the airlines, I realize what havoc this is going to be for all airline employees... will take a few days to aright.
When I was watching the local news tonight; (paraphrasing here) they said LAX and other airports would be playing catch-up with the flights until all the flight schedules were back to normal.