🎸 Musical instrument

Security itself is not the issue — screeners will let any instrument through the checkpoint. The problem arises at the gate: if your instrument is too large to fit in the overhead bin or under the seat, airline staff may gate-check it or refuse to board it. Under US law, airlines must allow small instruments (violin, flute, guitar) in the cabin if overhead space is available, but that right disappears if the bin is already full.

Not always. US law gives you the right to bring a small instrument into the cabin, but that right is conditional on space being available. If you board late and every bin near your seat is already full, the airline can require you to check it at the gate. Boarding early dramatically reduces this risk, especially on full flights.

Gate agents have discretion over whether overhead space is available, and on very full flights they may push back even on smaller instruments. Politely cite the FAA Modernization and Reform Act of 2012, which codified the right to carry small instruments in the cabin when space permits. Having the instrument in a slim-profile case and boarding as early as possible gives you the strongest position.

For instruments too large for the overhead bin — cellos, for example — buying an adjacent seat is the only reliable way to keep them in the cabin. Contact the airline when booking, not at the airport, as many carriers have specific procedures and pricing for instrument seats. Leaving it to check-in day often means the seat is already sold.