I am looking at the same thing. A BMI code share flight to Frankfurt operated by Lufthansa. I want to fly the route from Manchester to show British Airways that flying from Manchester to cities other man London interests people! I am at 520 tier points and therefore Avios on the flight are important!

That said, 248.90gbp is a lot more than the Germanwings return to CGN which gives M&M miles (not many admittedly) for about 60gbp return! Calling AirBerlin, come in AirBerlin!