Earlier, there were the Concorde - supersonic flights across the Atlantic - that people fancied but could rarely afford. Now United Airlines is betting big on its business travellers to break the barrier.
Fly faster than the speed of sound with Overture
New York to London in 3.5 hours in Boom Supersonic's new Overture jet
Nasa shows off brand new supersonic aircraft that can fly London to New York in 3.5 hours
Is there a possibility of supersonic aircraft being used as regular airliners again? What are the reasons for this? - Quora
Boom Supersonic and United Airlines Want To Bring Sound Barrier Busting Flights Back to the People
Boom Supersonic has contract with American Airlines
Boom Supersonic makes noise with new partnerships during a resumed Paris Air Show
United Airlines Places Order For 15 Supersonic Jets, Fly Transatlantic in 3.5 Hours Or 5 Hours To Asia - View from the Wing
On Final: Supersonic flights are set to return - Wings Magazine