I'm considering driving 1300 miles round trip to get to my x-mas holiday location. I know that planes are real fuel hogs but would my family's portion of the plane fuel exceed the fuel I'd burn driving? If anyone has any idea on plane fuel consumption rates perhaps they can help me do the math. Variables: 2 passengers, direct flight both ways 1000 miles total, of lets say 200 seats. My gas consumption via Insight would be 18.5 gallons. Besides the fact that 18.5 gallons of gas cost $460 less than flying, I'm hoping that it will actually be better on the environment (thus helping justify the waste of time). Oh ya doesn't jet fuel have high emmisions too?