Flights to/from Zurich are the most expencive ones in the Europe, I don't know why but check it on some flight boooking web sites.
I don't know about the rest of Europe but the UK - Zurich is served by several regional airports as well as the major London ones, some by low cost, others by mainline carriers.
Booked in advance, (which you would be able to do knowing your working schedule in advance), there are some very reasonable fares to be had for commuting to and from the UK.
However, as has been pointed out, if you are relocating lock, stock and barrel, you face a significantly higher cost all round.