Jetstar Japan vs Peach: fleets and facts compared

Jetstar's Japan website gives the following allowances for Jetstar Japan (GK) flights. Sizes and weights only.

• Carry-on, Starter fare: two items (one main item plus one small item) with a combined weight of 7 kg. The main item must fit in the overhead locker and not exceed 56 cm (H) x 36 cm (W) x 23 cm (D); the small item, such as a handbag or thin laptop bag, must fit under the seat.
• Extra carry-on: on selected routes, an add-on or a fare bundle raises the allowance to 14 kg, still two items, with the main item no heavier than 10 kg.
• Checked baggage: not included in Starter fares; it can be bought, or comes with some bundles, up to 40 kg per passenger. No single item may weigh more than 32 kg, and items longer than one metre in any direction count as oversized.
• Infants under two on an adult's lap have no carry-on allowance of their own; some infant items can be checked in free.

Jetstar's page notes that carry-on rules change on Jetstar Airways (JQ) flights from 2 February 2027; the allowances above apply to GK flights. Source: Jetstar Japan website, "Carry-on baggage" and "Checked baggage", read on 24 October 2026.

Source: airline baggage page, read 2026-10-24.

Peach's carry-on and checked baggage pages, read on 24 October 2026, set the following. Sizes and weights only.

• Carry-on (free on all fares): one bag plus one personal item, two items in total, with a combined weight of up to 7 kg. The bag's three dimensions must add up to less than 115 cm, including handles, pockets and wheels. Duty-free goods and souvenirs bought after security count towards the allowance.
• Checked baggage (paid option): standard weight 20 kg per bag, maximum 32 kg per bag with an overweight option. Sum of three dimensions up to 203 cm, including handles and wheels.
• Limits per passenger: up to 5 checked bags and a total of 100 kg.
• Oversized items: bags of 204 cm or more in total need an oversized option and must be no larger than 80 cm high, 80 cm wide and 230 cm deep; anything larger cannot be checked.
• No baggage transfer: Peach checks bags point to point only, so passengers on two separate same-day bookings must collect and re-check their bags.

Bags that fit the carry-on rules but cannot be stowed on board must be checked in. Power banks may not go in checked baggage.

Source: airline baggage page, read 2026-10-24.