London - Qantas is closer to the "final frontier of aviation" with plans to fly the 10 500 miles between London and Sydney non-stop.
Passengers and pilots on the 19-hour test flights between London and New York and Australia’s East Coast will have checks to see how they would cope with the world’s longest commercial flights.
The Australian flag carrier launched a 17-hour service between London and Perth on the West Coast last year.
But it said test flights to Sydney will take place as part of what it calls "Project Sunrise". This is the first of it's kind and not something the airline is going to launch overnight. The project will be piloted and there will be many test flights before you'll be able to book your one way flight.