Free images results:

Flute pictures, stock photos and images


Party time Stock Photos
Author: Ersler

Also, here are some commercial RF-licensed images that match your search criteria:  
Flute Stock Photography
Author: Marsia16
Flute Royalty Free Stock Photos
Author: Buckskinman

Explore more commercial options: More Flute Stock Illustrations & Vectors | More Flute Stock Video Footage