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Thread: Route of UA89 EWR-PEK
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Old Jun 3, 2016 | 2:35 pm
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yyz_atc_qq
 
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Originally Posted by PEKandFRAEnthusiast
Weird question, but I noticed today on FlightAware that UA89 is going east on the Great Circle Route, over Greenland and Russia.

I thought that EWR-PEK usually goes Westbound?

Is it supposed to vary, and what factors decide that?
Yes it is supposed to vary. Factors deciding are weather, wind, navigational aid serviceability, potential solar radiation, ATC limitations, ATC cost, aircraft equipment serviceability and I'm sure a few others.
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