Thought this was worthy of a share.  Posted on GuitarWorld.com last week.  The FAA Modernization and Reform Act of 2012 states the following:

SEC. 403. MUSICAL INSTRUMENTS.
(a) IN GENERAL—Subchapter I of chapter 417 is amended by adding at the end the following:

‘‘§ 41724. Musical instruments
‘‘(a) IN GENERAL—
‘‘(1) SMALL INSTRUMENTS AS CARRY-ON BAGGAGE.—An air carrier providing air transportation shall permit a passenger to carry a violin, guitar, or other musical instrument in the aircraft cabin, without charging the passenger a fee in addition to any standard fee that carrier may require for comparable carry-on baggage, if—

‘‘(A) the instrument can be stowed safely in a suitable baggage compartment in the aircraft cabin or under a passenger seat, in accordance with the requirements for carriage of carry-on baggage or cargo established by the Administrator; and

‘‘(B) there is space for such stowage at the time the passenger boards the aircraft.

 

Some important caveats, but the next time the guy at the ticket counter tells you no, whip out your copy of the FAA Modernization and Reform Act of 2012 and tell him to Rock Off!

Click to access CRPT-112hrpt381.pdf

https://www.guitarworld.com/features/acoustic-nation-alert-you-can-carry-your-guitar-it-s-law