MIA was the base for the Florida Shuttle under Piedmont.
US ran a daily 767 from PIT-CLT-MIA.
Airbus has a big training center down there, thats why it was used from proving runs.
MIA use to be a crew base from PI, and shortly for US, when I hired in TPA, I went to MIA for my paperwork and IDs.
US flew BOS-FRA for a bit. Not sure what domestic routing was used.
TPA use to see regular 767 service, both LGW flights originated from TPA, one to CLT-LGW and one to BWI-LGW.
Also LAX use to see the 767 all the time, they had the wash and buff out there for it and we used TWA's hangar for the nightly check on them at LAX.
BDA has seen the 767 service before also.