I'm Essential To Most Flight, But Can't Fly On My Own. What Am I?

Riddle: I'm essential to most flight, But can't fly on my own. What am I?

Answer: Feathers.

Source: https://www.riddles.com/index.php/2036

I'm essential to most flight,
But can't fly on my own.
What am I? — I'm essential to most flight, But can't fly on my own. What am I? by Morgan Foster v1.

Riddle: I'm essential to most flight,
But can't fly on my own.
What am I? Answer: Feathers. — by Morgan Foster v2.