I flew back last Tuesday and I have never seen the airport so packed. I think this was due to the inability for most people to be able to check in online in advance. Almost everyone I talked to there had to wait forever to get to a kiosk due to this. I waited almost 2 hours to get to Delta's kiosk then another 30 minutes to check the bag. You can use any kiosk to get your boarding passes so if you see a one available at another airline, grab it. There were too many people when I was there so there were no free kiosks. The security line was very long at times. Thank god I had Club Mobay and used their line for security which took 2-3 minutes. 3 hours is the least you should get there to be safe. I showed up at about noon. It did lighten up at about 2:00 that day.