Originally Posted by
hauteboy
ARI-SYX is 12430
I think we have a winner. I only managed to come up with
CHC - LERO: 12404 mi
Christchurch [Intl], NZ - Lugo (Castro de Rey) [Las Rozas], ES
On the other hand: ARI-SYX are not exactly on opposite ends of the globe (about 2 minutes NS and 15 minutes EW), so some longer distance might be possible on great circle mapper...
HTB.
Edited to add: For example:
0°0'0"S 0°0'0"E-0°0'0"N 180°0'01"E with 12451 mi. Does this qualify as a valid flight -- two aircraft carriers would come in handy...