On August 19, 2017, I woke up at 3 am to get ready for our flight to Chicago which was set to leave San Francisco at 6 am. A cab for the airport picked us up at 4 o'clock and by 4:45 am, Marc and I cleared security. By 5 am, we went to the United Lounge in Terminal 2 for breakfast before boarding our flight. The total flight time was a little less than four hours.