I'm currently living in London, but I'll be moving to Berlin early next year - and I'll definitely be staying for a fair while. I've still got friends and family in London and Manchester, so it's likely that I'll be doing a fair bit of travelling back and forth - most likely by flying.
My question is this: what kind of benefits or perks can I get out of doing a lot of air travel back and forth between the two, and how can I best use this to my advantage?
For example, should I give my loyalty to a particular airline in order to get rewards? I kind of prefer British Airways, but I'm open to suggestions. Is there anything else I should think of, or take into consideration? Is it even worth trying to do anything like this, or should I just go for the cheapest flights regardless of carrier?