American Airlines orders 20 supersonic jets

American Airlines has agreed to buy up to 20 supersonic jets

American Airlines has agreed to buy up to 20 supersonic jets

The amount of American's deposit would not be provided Tuesday.

American became the second U.S. customer for Boom after a similar announcement from United Airlines for 15 jets.

It has been nearly 20 years since the last supersonic passenger flight by Concorde,

the British-French plane that failed to catch on because of the high cost.

Both for passengers and airlines.