Originally Posted by
Seat 2A
A casual perusal of what '91 schedules I have access to does not reflect any service by US Air south of the border.
Yep, I did not see any USAir service to Mexico as well in the early 90's. And besides Canada, it looks like the only other international service flown by US at this time was to Bermuda and Nassau in this hemisphere as well as to London, Paris, and Frankfurt in Europe. I also thought they might have been serving Grand Cayman at the same time; however, it appears their GCM service was actually flown by Cayman Airways on a code sharing basis.