Re:American Airlines confirms UFO contact over New Mexico on...
by jcims on Tuesday February 23, 2021 @10:36PM
(#26246304)
Aside from launch where they typically have some kind of boost stage, cruise missiles fly at low altitudes with small turbofan engines. Not much of a visual exhaust signature:
https://youtu.be/BGoJl8Lr46g
https://youtu.be/WyeMyhKE5Yw