Yes, FLYBRIDGES is a Scrabble word!

Letter values in Scrabble US: F 4, L 1, Y 4, B 3, R 1, I 1, D 2, G 2, E 1, S 1.

Is it a valid word?

FLYBRIDGES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the highest navigational bridge on a ship; a small (often open) deck above the pilot house

Also: flying bridge, fly bridge, monkey bridge.