Blinding lights visible from flight to LA

I (18 f) just got off a flight from Denver to LA with my parents. When we were flying over Las Vegas area, I noticed these lights, super super bright and on the ground. I am a major believer in UFOs and extra dimensional stuff, but I’m not sure what this is. Any ideas?

P.S. Towards the end of the flight, I was looking out over the Los Angeles mountains and a women behind me was filming things like how I was. There was a plane flying near our plane, and then all the sudden I see a metallic disc, about a third of the size of the plane and a bit above the plane, zoom by faster than said plane and I noticed it kind of tilted back and forth. The minute I saw it I started freaking out as I always look for ufos and this time I actually saw one. I watched it for about 5 seconds while debating taking a video or watching it because it flew by so fast. You guys don’t have to believe me but I saw it with my own two eye balls. I asked the women if she saw it too, she said no and that she thought I was just freaking out because of the plane, I said there was a flying disk!! I then asked one of the pilots and he told me “I didn’t see anything but the flight attendants” what a perv😭