Originally Posted by
Viajero
...and fuel surcharges. To ticket from a BA only location is, or can be, a lot more expensive in this regard than to ticket from a place where AA is an option.
You always have the option to use the BA location to ticket the minimum number of segments to circle the globe and then reissue as soon as you get to an AA station. Of course the $125 is about equal to two fuel surcharges.