Sitting on deck in dark, I live near a small airport. Saw what I thought was a routine plane coming in. But something seemed off about its movement to catch my eye. It was not moving forward in a usual flight path. Figured perception off, but kept watching. It seemed to stall. Then reverse. Then disappear momentarily and then reappear and go in more irradic pattern, up, down, side to side. Now I am really paying attention. Flashing lights, maybe blue and red (yes, like a plane) and oval. It’s dark and I couldn’t see an outline. Seemed to be closer and smaller than a plane, but bigger and higher than a drone would fly. No sound like a helicopter. And they are loud usually. No sound like a plan either. This initial siting went on for maybe 2-3 minutes. And then it went in the opposite direction it was initially coming and disappeared/ went behind trees. It did not come back that way. Maybe 5-10 later it was in a different place not far. Blinking lights. If I had to make a guess, a few thousand feet up. But flew in a more normal pattern, smoother. Went behind trees in sight. Did not come out other end. 5 minutes later, same flight path, gone. These very brief, 30 seconds. However between siting 2-3 in second location, clouds had rolled in, where before it was a clear sky. The object was flying below clouds at this time to give an idea of how high in the sky.