The only way that this could be arranged through ScotAirways is at our Reservations dept in Cambridge, sorry don't have the number to hand. We have a very limited agreement with other airlines for reduced travel but I am afraid I have no idea if we reciprocate on the deals. Our own crews do not get a lot of discount travel so I would think you have a very slim chance but if you don't ask you don't get!
I think the Southampton route is pretty busy so that may not count in your favour.