American Airlines agrees to purchase 20 supersonic planes from Boom

Boom has received his second firm order in the last two years.

Last year, United Airlines committed to purchasing 15 Overture jets.

"Passengers want faster, more convenient, and more sustainable flights, and that's what Overture delivers," Boom CEO Blake Scholl told CNBC.

"Flight times can be cut in half, which is great for networks like American, which can fly from Miami to London in less than five hours."

Boom claims that the Overture jet will fly at Mach 1.7, or 1,304 mph, significantly reducing trans-Atlantic and trans-Pacific flight times.

According to Boom, an Overture flight from Seattle to Tokyo, which typically takes just over 10 hours, could be completed in six hours.

The airline can also purchase another 40 Overtures in the future.

Boom claims that its supersonic planes will carry 65 to 80 passengers while using environmentally friendly aviation fuel.

Boom plans to build the jet at a new manufacturing facility in North Carolina, with the first model arriving in 2025 and the first flight taking place in 2026.

Boom expects the Overture to enter commercial service by the end of the decade if flight tests and certification go as planned.