According to Airbus's own figures:
A380 economics
fuel-burn: Despite its ability to carry 35 per cent more passengers than its competitor, the A380 burns 12 per cent less fuel per seat – reducing operating costs and minimising its effects on the environment at the same time through fewer emissions. The A380 burns fuel per passenger at a rate comparable to that of an economical family car.
The A380 burns 12% less fuel per seat. At 525 seats, that means it would burn 12 x 5.25 = 63 times less fuel per hour, or 6.3 times less fuel in 10mins.
So it actually saved money by going around. (Plus what Mad (Flt) Scientist said). QED