Bring my Yamaha keyboard on a commercial airliner?

I have a Yamaha 61-Key Keyboard. I'm not sure if I can fly with him on any domestic flights or international. Does anyone know if the company allows me to fit in the overhead compartment? I traveled with my guitar before installed in the compartment OK, but do not know about the keyboard. Additional details PS. I'm moving to Japan in a few months and I really like to take my keyboard with me on the plane. Genuine answers is appreciated.

This may be a question of airline travel. Call two or three that were supposed to fly and could ask them. How much? Maybe you could see through you.

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