today's travel fact travel fact: the longest flight in the world will soon begin By jt - 08/09/2015 0 1434 Share on Facebook Tweet on Twitter The longest flight in the world – Dubai to Panama City on Emirates – will soon be launched. This 8,588 mile [13,821 km] flight will be 17 hours and 35 minutes long. The return trip back to Dubai will only be a mere 15 hours and 45 minutes.