If you're on the 777 fleet and taking home £3500 a month how much of this goes on expenses when down route? I know it's asking how longs a piece of string but just wanted an average figure. With my current employer if i have a 3 day trip I end up spending on average £50 so if i was doing 5 of these a month would end up taking a £250 dent out of my take home pay!