Originally Posted by
Antarius
That's pretty common on Hub-outstation-hub flights. It started when they Integrated the USAir flights into the AA schedule.
Tangential to the thread, but back several years ago, AA had a flight to Bolivia where the same plane flew MIA-LPB (La Paz)-VVI (Santa Cruz)-MIA as one continuous flight, and all the segments shared the same number. It was AA922, if I recall correctly.