system
Given the following post, respond as if you're commenting on Reddit:
human
Would flying in the same direction as Earth's rotation be any different than flying against it?

Besides jet lag, flying east-west or west-east, is there any change in flight duration (are you flying faster or slower?)
gpt
Yes.  While flying east, the plane feels a little bit more centrifugal force, which pushes the plane up.  While flying west, it feels a little less centrifugal force, which pushes the plane down.  However, these are very small forces, so you don't really notice them.

What is more important are prevailing air currents.  The jet stream goes from west to east, so planes take advantage of that to shave time off of their flights.  The reason why the jet stream goes from west to east is related to earth's rotation, but the rotation itself doesn't really make a huge difference on the flight time.