I was one of many passengers in flight to their destination when the WTC and the Pentagon were hit. My flight arrived at its destination without any special comment from the flight crew. My wife called me to tell me of the news and that her high rise office building back home was being evacuated as a precaution. Shortly after our arrival, the state troopers arrived at the airport and closed it down for departing flights.
My husband's business, in Tulsa, OK, evacuated too. He turned up before noon that day.