Instrument with an assigned seat:
Your musical instrument must be secured in the seat with a seatbelt; otherwise it must be transported with the rest of the baggage. The instrument should be transported in its instrument case.
For musical instruments that occupy a seat, you must pay an additional adult fare in the same cabin as you. Remember you’ll have the right to two additional pieces of checked baggage. To transport your instrument in the seat next to you, you must comply with the following requirements:
Maximum weight: 165.3lbs / 75kg
Maximum height: 80 inches / 203.2 cm
Works of art
Excludes flights to or from the United States; the regulations may vary by
country and can be changed by the authority of each country at any time and
without prior notice.