I was able to pull up departure flights for tomorrow on Delta a couple of times today. I was also just now able to pull up flights for Thursday. Not really sure what the real situation is but from my PERSONAL perspective, IF you are on Delta and have been cancelled, continue to check their website as it seems to come and go as to what is available and when. NO guarantees but I have had flights pop up on 3 days this week that were supposedly not available. It changes rapidly.