American
VickersVicount
The BHX and American Airlines press releases make no reference to the flight being seasonal only routesonline have made that suggestion.
I take it they either know more than the rest of us or are they drawing conclusions as they are not bookable more than 330 days in advance - 6 October 2015 is the latest I could bring up outbounds from BHX and EDI.
On other websites it has been stated BHX is not seasonal but I suppose only time will tell.
Pete