A case up to 85 × 36 × 23 cm is accepted, and many viola cases are a little longer. Measure yours. From 2 February 2027 on Jetstar Airways you need Priority Carry-on for it.
You can buy it a seat on this airline.
At the airport, call it a violin. Few staff know what a viola is, and some picture a cello.
These rules were last checked on 10 Nov 2026, more than 100 days ago. Confirm on the airline's own page before you fly.
Jetstar rules
Jetstar Japan (GK), and Jetstar Airways (JQ) until 2 February 2027: an instrument under 7 kg and up to 85 × 36 × 23 cm counts toward your carry-on allowance.
Jetstar Airways from 2 February 2027: up to 40 × 30 × 20 cm goes under the seat. Up to 85 × 36 × 23 cm and 10 kg needs Priority Carry-on, which is limited, or Business.
You can buy a seat for a larger instrument.
Checked items over 1 m pay an oversized fee. 32 kg maximum. Starter fares include no checked bag.