Sentence:  I have visited more than half a dozen carrier training facilities, spent over 150 hours on jumpseats, piloted a Lockheed 1011 from <WSD>MIA</WSD> to LAX, visited numerous towers, rapcons, and centers, and discussed our commercial Air Transport System with everyone involved. 
Meaning of the word marked with <WSD> tags:  IATA airport code for (Miami International Airport).