Long, arduous flights are becoming a thing of the past, with more airlines looking for the next best thing in air travel replacing traditional airplanes with supersonic jets. United Airlines has committed to acquiring more than 15 planes from Boom Supersonic, and they will also have the option to purchase 35 in the future.

The first commercial supersonic jet dubbed the Overturn has yet to be built or certified with the target for starting a passenger service by 2029 flying by March 1. This aviation innovation will change the travel industry as supersonic jets can cut the standard travel times in half. A trip from New York City to London typically lasts 7 hours could cut down the journey to 3.5 hours with supersonic jets. United Airlines found appeal in Boom’s plan to power the supersonic jets with engines running on sustainable fuel.

Supersonic jets might seem like a new concept but the unique airline, Concorde, incorporated supersonic jets from 1976 until October 2003. Though this was a promising aviation innovation, Concorde was forced to retired following declining passenger numbers following the Air France Concorde crashed minutes after taking off from Paris in July 200, killing 109 people on board and four on the ground.

Another issue with supersonic jets is the loud sonic booms that disturbed multiple local residents around the airport and flying above land restrictions. Following United Airlines’ announcement, CEO Kirby Scott announced a multimillion-dollar investment in a carbon capture start-up company and commits to being carbon-neutral by 2050.