Wikipedia suggests ~100 mpg/passenger [1]. As Schlappig has flown more than 400,000 miles, he's burned up about 4,000 gallons of fuel. That's a lot of fuel. It's enough to heat a northeastern United States home for about eight winters [2].

But it's not that much fuel. A 30-mpg automobile will consume a similar quantity of fuel (gasoline, not jet fuel) in 120,000 miles of driving.

[1] https://en.wikipedia.org/wiki/Energy_efficiency_in_transport... [2] http://www.eia.gov/forecasts/steo/tables/pdf/wf-table.pdf

Perhaps more importantly, how much fuel does it take to transport 200lbs in relation to transporting the rest of the plane?

Not like he's specifically chartering the flights, the planes is going to fly with or without him.