Seen several lights flying together in the night sky.

This is the second time I've seen around 15 small lights flying in the sky at night together like a flock of birds. So this time it was in a different location in the sky. Same color lights. Same size. There seemed to be more of them this time tho. & they still moved like a flock of birds but it was a little bit messyish this time. They move faster than air planes that's for sure. The distance it traveled before going back into the clouds would have taken a plane maybe eh idk let's say 10 sec..these things can travel that Same distance in 3 sec. Sounds crazy I know but I was just sitting there thinking I wonder if I'll ever see that again and then I looked up and here these lights come popping out the clouds and going back in again. I 100% believe that is aliens now after seeing it again. I'm baffled and amazed.