People on other forums have cited Iberia's inclusion in oneworld as the main reason they don't serve BHX
Since BA doesn't operate a feeder from BHX to LHR, and therefore loses a chunk of what could be their LHR business to the likes of LH, AF, KL, LX etc I would have thought this would be a reson why IB should serve MAD from BHX, thus bringing revenue into IAG that is currently going elsewhere - or have I lost the plot on this one?