I was driving home from work, when I noticed an odd stationary object in the sky over a schoolyard clearing. Living within a few miles of Love Field, I am accustomed to seeing aircraft both ascend and descend, day and night. This was different. When I first noticed it, I assumed it was a military plane, but upon further observation, noticed it was stationary. Within the 1-2 minutes I was able to stare during a red light, the aircraft did not move. When the light turned green I went forward, towards it, and it began to hastily move north/northeast. I followed the best I could through neighborhood streets to track it’s rapid movement but I was unsuccessful. I was able to see it twice more before it disappeared. Shortly after, a seperate, oddly floaty seeming aircraft was visible, further northeast. They were soundless. I’ve never experienced anything like this.