Possible orb sighting

I recently had a moment where I was hit with a memory from my childhood, that I had forgotten for a long time. In it, I remember flying somewhere with my family and looking out the airplane window and flying by what I recognized to be the sun. It was daytime, clear skies or at least, we were above the clouds. I was too young to comprehend the concept of space and the sun not being in our atmosphere. This object was. It was some distance away from the plane but no more than a few hundred feet....