I've seen many stories of this occuring on r/glitch_in_the_matrix (a popular Reddit). People have been seeing big airliners just paused in the air, not moving. Some of them stopped their car and saw that the planes still weren't moving. I thought an airplane would stall if it went too slowly? I'm not a plane expert but can newer passenger planes hover in the air?
Edit - often times, the planes are not high up, but coming in to land or take off. Someone said they were watching planes take off or land, and suddenly a big jet just paused in mid air for 30 seconds before starting to move again.