Super fast flights will be possible

Airbus parent company EADS : a global pan-European aerospace and defence corporation
Biofuel-powered hypersonic jets will shuttle passengers from London to Tokyo (and vice-versa) in less than two and a half hours by 2050.
High-speed international air travel that doesn’t generate air pollution would constitute a major achievement. The ZEHST (Zero Emission Hypersonic Transportation) would travel over 3000 mph powered by a combination of hydrogen and oxygen derived from seaweed, emitting water vapor instead of carbon dioxide. Also, at cruising altitudes just above the atmosphere of the Earth, it’s almost like space travel. BUT… Commercial flights won’t be available for 40 years. What’s more, it may not be commercially viable: The aircraft will only be able to handle 100 passengers at most, so tickets would be prohibitively expensive. (MSNBC reports that seats on the ZEHST “will likely cost in the neighborhood of $10,000 to $30,000, according to aerospace industry experts.”)

Peralta, E., (2011), "Paris Air Show: A Passenger Jet That Does New York To London In 90 Minutes", [online], Available: