Jetstar Japan baggage allowance: cabin and checked

Jetstar Japan is a low-cost carrier flying both within Japan and internationally. Low-cost, based at Narita. The 7kg carry-on allowance is shared across both pieces and is enforced at the gate.

Updated September 29, 2026

7kgCarry-on weight

Paid, up to 40kgChecked, per piece

Low-costDomestic flightsInternational flightsChecked bags cost extra

What Jetstar Japan lets you take into the cabin

Each side: 56 × 36 × 23cm
Weight: 7kg total for both pieces, upgradeable to 14kg
Pieces: 2 — one bag plus one personal item
Personal item: Handbags and laptops count towards the 7kg

JetstarStarter fares include a carry-on allowance of 7kg shared across 2 items. Subject to availability, you can purchase additional carry-on baggage to increase your weight to 14kg.Official page

What Jetstar Japan lets you check in

Free pieces: Paid
Weight: Paid, up to 40kg
Size: Extra charge over 1m on any side

If you go over the allowance

How it is charged: Excess is charged at the airport and costs more than buying the allowance in advance.

Paying at the airport is always the most expensive option. Where an allowance can be bought in advance, buying it online before you travel costs less.

Batteries and things that cannot be checked

Jetstar Japan applies the same rule as every other airline flying to Japan.

Power banks and spare lithium batteries travel in the cabin only, never in checked baggage.
Up to 100Wh needs no approval; 100–160Wh needs the airline's agreement and is limited to two; over 160Wh is refused.
E-cigarettes and heated tobacco go in the cabin and cannot be used or charged during the flight.
A device in a checked bag must be switched fully off, and removable batteries come out and travel with you.

Frequently asked questions

What is the carry-on size limit on Jetstar Japan?

Each side: 56 × 36 × 23cm. Weight: 7kg total for both pieces, upgradeable to 14kg. Pieces: 2 — one bag plus one personal item.

How much checked baggage is included with Jetstar Japan?

Pieces: Paid. Weight: Paid, up to 40kg. Size: Extra charge over 1m on any side.

Can I put a power bank in checked baggage on Jetstar Japan?

No. Power banks and spare lithium batteries must travel in the cabin on every airline flying to or within Japan. Up to 100Wh needs no approval, 100–160Wh needs the airline's agreement, and over 160Wh cannot be carried at all.