PPRuNe Forums - View Single Post - SQ306 routing SIN-LHR Dec 27th 2012
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Old 28th Dec 2012, 10:02
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redsnail

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Join Date: Feb 1997
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I don't usually do that route but 2 reasons spring to mind.
1. Unfavourable jet streams (head winds) along your usual flight path.
2. Closure of airspace/high risk threats.

Personally, I think 1 is more likely.
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