BA FO, Airbus320, Y2, average £3500 with minimum pension contribution. Flies 75h/month on a full month, which amounts to much more time spent at work because of Heathrow. You can get more money, as much as £4400. I did it the first few months, but I got fatigued and on the third month, my ears gave up and I missed a couple of trips. So now, I just stick with my normal pattern and £3500 and in fact would prefer to work less and make less since Heathrow really takes life out of me.