In 2026, there are no commercial supersonic flights currently in service, but the aerospace company Boom Supersonic is actively developing its "Overture" airliner to bridge this gap. Once operational, the Overture is designed to fly at Mach 1.7, which would reduce the flight time between New York (Newark) and London to approximately 3 hours and 30 minutes. This is nearly half the time of a standard 7-hour subsonic flight. As of early 2026, Boom’s demonstrator aircraft, the XB-1, has successfully completed its initial supersonic test flights, marking a major milestone for the program. The full-scale Overture prototype is expected to be rolled out in 2027, with the goal of carrying 60–80 passengers by the end of the decade. Until then, the record for the fastest crossing remains with the retired Concorde, which once made the journey in a record-shattering 2 hours, 52 minutes, and 59 seconds in 1996.
That’s a great question, but it requires a bit of context, as there is no regularly scheduled supersonic passenger flight operating today.
However, we can answer based on historical data from the Concorde and the specifications of upcoming aircraft.
The Anglo-French Concorde was the only supersonic airliner to ever fly the New York to London route regularly. Flight Time: Approximately 3 to 3.5 hours. Cruising Speed: Mach 2.04 (about 1,350 mph or 2,180 km/h), more than twice the speed of sound. Key Detail: The flight time could vary. The westbound flight (London to New York) took closer to 3.5 hours because it was fighting the prevailing jet stream. The eastbound flight (New York to London) was often under 3 hours, with the record being 2 hours, 52 minutes, and 59 seconds.
A typical subsonic flight on this route takes: Eastbound (NYC to London): 6 to 7 hours (helped by the jet stream). Westbound (London to NYC): 7 to 8 hours (fighting the jet stream).
So, Concorde roughly halved the flight time.
Companies like Boom Supersonic are developing new supersonic airliners (like the “Overture”) aimed at the same routes. Projected Speed: Mach 1.7 (about 1,300 mph or 2,100 km/h). Projected Flight Time: Just under 3.5 hours for transatlantic routes (e.g., New York to London). Timeline: The goal is to enter service in the late 2020s or early 2030s, pending development and certification.
Concorde could only fly at supersonic speeds over the ocean due to regulations banning sonic booms over populated land. This restriction still exists and is a key challenge for future routes, limiting them primarily to over-water flights (like New York to London).
In summary: