Our flight into Seattle arrived 30 minutes late today. We flew into a strong headwind of about 110 mph for most of the way. Our pilot said that with a tailwind the airplane would could go as much as 120 miles per gallon, per passenger, but that today it would probably be closer to 60 miles per gallon, per passenger.
So .. with a motorcycle or scooter and say, 24 hrs to work with (instead of 2 hours!), I could have made it to Seattle with more or less the same fuel consumption compared to flying up with the airplane !