Superstar
There is a good chance that the Boeing Sugar Volt may be the future of commercial aviation one day. This concept plane was unveiled at the 2010 AirVenture, where electric planes and helicopters stole the spotlight.

The Boeing Sugar Volt would be more of a hybrid plane, capable of running off of fuel or electricity. It would seat 154 people and have a range of 3,500 miles. It looks like the friendly skies just got a little more earth-friendly.