Move over Sydney to Dallas! You have been outdone!
If you want to spend 17 hours and 35 minutes in a 777-200LR, Emirates will take you from Dubai to Panama, a distance of 13,821 km (8,588 mi ) from 1st February, 2016. The Panama (PTY) to Dubai (DXB) return trip will be a mere 15 hours 45 minutes.
My choice would be in Emirates Business Class for this distance! The 777-200LR has 42 lie flat Business Class seats with a 60″ pitch. Emirates cram an awful ten seats in a row in Economy -admittedly with a 33 to 34″ pitch which is better than many airlines but the seats are a mere 17″ wide. The narrow aisles leave a feeling of being very cramped. The plane also features eight First Class suites which will set you back $14425 for the round trip next March.
What has been your longest flight? Mine by distance and time is Los Angeles to Melbourne 12,772 km which once took a whopping 16 hours 45 minutes gate to gate.