In the case of concern for expensive belongings that may be damaged when checked in as baggage, such as a cello when boarding an international or domestic flight, it is possible to reserve an additional seat next to the passenger and transport it.
If you purchased an additional seat and take the cello in the cabin, you will pay the same fare in addition to the fare paid by the customer. However, if you have already purchased a seat, you must cancel the relevant reservation and re-purchase. The airfare will be applied based on the airfare at the time of re-purchase. (For domestic flights, additional purchased seats are applied based on the adult fare)
When making a reservation, please let us know in advance whether you have a cello and the size of cello, etc. so you are able to reserve an additional seat.