Is it faster to fly from paris to moscow in January or from moscow to paris

Is it faster to fly from paris to moscow in January or from moscow to paris

Quicker to drive across town.

Depends on the weather that day but, European winds, like the US are prevailing Westerlies, traveling West to East. Note in January, the Arctic wind really sweeps down across Europe so if I had to guess, I would say faster Paris to Moscow.