Planes are made of this, and short haul flights are mostly crewless

Igor says theyre not going down, and hes got the things on his cowboy boots to prove it

A thin highway that keeps no guest, Where wandering streams briefly flow. Though empty, I disturb their rest And guide them upward as they go. What am I?

In the twilight's gentle embrace, a glow begins to fade, Like an old lamp's soft caress, in shadows it's displayed. I'm not very bright,I'm kinda...?

This can mean to spot something hidden, to register a speed, or to check in, among many other uses.