Yes, I was flying on September 11. We had departed Memphis on FedEx flight 904, Memphis to Phoenix. Shortly after departure, we heard some chatter on the radio about an airplane crashing into the World Trade Center. We were approximately 100 miles west of Little Rock, AR when we learned of the second plane. It was at this time that we received two ACARS messages. One ACARS message simply stated "land at nearest suitable airport due to national emergency and report position." Memphis Center was already talking about SCATANA at this time.
We made a request to return to Memphis but our request was denied. We diverted to Little Rock, AR and that is where we landed. FedEx had a contract transportation company pick us up and transport us back to Memphis. While riding home, I remarked what a beautiful day it was earlier, but the world suddenly looked so different now. I couldn't put my finger on why and it would take months, if not years to understand it. That drive home seemed very strange and I wonder if some of the others on that freeway were aware themselves of what was happening and whether their worlds had changed too.
Further, the air traffic controllers did one hell of a job on September 11th and they should be commended for getting all of us safely to the ground.