Swiss firm Destinus has been diligently working on the development of a hypersonic hydrogen aircraft for several years, aiming to transform the intercontinental travel experience by dramatically cutting flight durations. With this technology, passengers can look forward to drastically reduced flight times, such as 4 hours and 15 minutes from Sydney to Frankfurt (down from 20 hours), 3 hours and 30 minutes between South America and Dubai (compared to 14 and a half hours), and just over 3 hours from Tokyo to Memphis (rather than almost 13 hours).