it is more banal than that
It was Xmas and since most of the service providers in the critical area come from the US military and Allies go figure what hymn sheets were being sung from.
The poster shows a plausible route when airways are not available at times/dates on the calendar. By plausible I include wind but also the origin, flag, countries overflown. But honestly the list of dates given in the link say it all. It was Xmas.
Now if Iran is not favoured the options reduce somewhat.
SQ306 eh? Where have I heard that before??
Last edited by Dr Syntax; 28th Dec 2012 at 11:36.
Reason: spelling and fatigue