How hypersonic travel could shrink a 6-hour NY to LA flight to 15 minutes

Hypersonic flight at Mach 5 or above could one day cut long-haul trips dramatically, even reducing a New York–Los Angeles flight to about 15 minutes.

The technology faces major hurdles, especially extreme aerothermal heating, airflow control, and keeping aircraft materials durable at very high speeds.

Engineers are also limited by scarce ground-testing options, so computer simulations and specialized facilities remain essential.

Despite the challenges, a practical hypersonic aircraft could reshape passenger aviation, logistics, and emergency response.