Train vs 'Plane
I thinks it is pointless arguing about the respective travel times to London when expert opinion was presented in the Court of Appeal that favoured the train as the quickest mode of transport.
However Carlisle to SEN to then fly to Faro on Easyjet? That is a different proposition. Is SEN offering cheaper Easyjey flights than airports closer to Carlisle? Maybe Stobart Air are relying on providing a feeder service?