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Air Seoul baggage allowance: carry-on, checked bags and power banks

Air Seoul is a low-cost airline based in South Korea, flying to Narita, Kansai and Fukuoka in Japan. Carry-on: 115cm, 10kg. Checked in Economy: Regular and discount fares: 10kg.

Updated

115cmCarry-on, three sides
10kgCarry-on weight
Regular and discount fares: 10kgChecked, Economy
160WhLargest power bank

Low-costPower bank: not to be used

What Air Seoul lets you take into the cabin

Economy, as Air Seoul publishes it.

Three sides added
115cm
Each side
55 × 40 × 20cm
Weight
10kg
Pieces
1 piece (plus 1 additional carry-on item)

In the airline's own words

Air SeoulPassengers are permitted one piece of carry-on baggage measuring no more than 115cm (A+B+C) and weighing less than 10kg (22lbs).Official page
Air Seoulmaximum length per side A(Length) 55cm, B(Width) 40cm, C(Height) 20cmOfficial page
Air Seoul Airbus A321 aircraft taxiing with snow-capped Mount Fuji in the background at Shizuoka Airport
Photo: Air Seoul A321-231 (HL8255) taxiing at Shizuoka Airport in 2017.jpg by Gabriella918 (CC BY-SA 4.0, cropped), via Wikimedia Commons.

What Air Seoul lets you check in

Free checked baggage in Economy on flights to and from Japan.

Regular and discount fares
10kg
Heaviest bag
30kg
Size
203cm total of three sides

In the airline's own words

Air SeoulThe weight of one piece of checked baggage can not exceed 30 kg. If exceeded, it must be packed separately.Official page
Air SeoulOne piece of checked baggage size cannot exceed 203cm (sum of three dimensions)Official page

Power banks and spare batteries on Air Seoul

What Air Seoul's own pages say about power banks.

Air Seoul does not allow power banks to be used during the flight.

Using it on board
Not allowed
With approval up to
160Wh
Power banks per person
2max
In checked bags
Not allowed in checked baggage
With approval
Over 100Wh up to 160Wh: airline approval needed in advance; up to 2 in total with replacement batteries
Not allowed
Lithium-ion over 160Wh or lithium metal over 8g: not permitted for transport
How many
Up to 2 power banks per passenger, 160Wh or less each
Using it on board
Do not use or charge power banks on board
Where to keep it
Do not store spare batteries in overhead bins; keep with you or in the seat pocket
Packing
Insulate terminals or put each battery in a separate transparent zip bag
Rule in force from
20 April 2026

In the airline's own words

Air Seoul100Wh 100ml or less, Lithium content of 2g or less Max. 2 Not permitted for transport Max. 5 Not permitted for transportOfficial page
Air SeoulIf carrying spare batteries and replacement batteries exceeding 100Wh up to 160Wh, a combined total of up to 2 units is permitted, subject to airline approvalOfficial page

Where these power bank rules come from

If you go over the allowance

Charges published by Air Seoul.

Pre-paid excess baggage, Korea–Japan route, first 15kg, booked 48h or more before departure (Special Fare)
KRW 40,000 (JPY 4,000) per 15kg
Pre-paid excess baggage, Korea–Japan route, first 15kg, booked within 48h of departure (Special Fare)
KRW 45,000 (JPY 4,500) per 15kg

Where Air Seoul flies in Japan

Airports in Japan listed on the airline's own site or in the airport's official airline list, and the terminal to head for.

Which terminal Air Seoul uses at Narita, Haneda and Kansai (from the airports' own airline lists)
AirportTerminal
Narita AirportT1
Kansai AirportT1

Air Seoul and other airlines from South Korea

The same numbers side by side. Tap a name for that airline's page.

Carry-on and checked baggage, South Korea airlines (each airline's own published rules)
AirlineCarry-on sizeWeightFree checked (Economy)Power bank on board
Air PremiaSouth Korea · Full-service115cm10kgDepends on the fareNot to be used
AsianaSouth Korea · Full-service115cm10kg23kgNot to be used
Korean AirSouth Korea · Full-service115cm10kg23kgNot to be used
Aero KSouth Korea · Low-cost115cm10kgDepends on the fareNot to be used
Air BusanSouth Korea · Low-cost115cm10kgDepends on the fareNot to be used
Air SeoulSouth Korea · Low-cost115cm10kgRegular and discount fares: 10kgNot to be used
Eastar JetSouth Korea · Low-cost115cm10kgDepends on the fareNot to be used
Jeju AirSouth Korea · Low-cost115cm10kgDepends on the fareNot to be used
Jin AirSouth Korea · Low-cost115cm10kg15kgNot to be used
Trinity AirwaysSouth Korea · Low-cost115cm10kgDepends on the fareNot to be used

Frequently asked questions

What is the carry-on size limit on Air Seoul?

Three sides added: 115cm. Each side: 55 × 40 × 20cm. Weight: 10kg. Pieces: 1 piece (plus 1 additional carry-on item).

How much checked baggage is included on Air Seoul?

Economy: 10kg. Size: 203cm total of three sides.

Can I use a power bank on a Air Seoul flight?

Using it on board: Do not use or charge power banks on board. Where to keep it: Do not store spare batteries in overhead bins; keep with you or in the seat pocket.

Can I put a power bank in checked baggage on Air Seoul?

In checked bags: Not allowed in checked baggage. With approval: Over 100Wh up to 160Wh: airline approval needed in advance; up to 2 in total with replacement batteries. How many: Up to 2 power banks per passenger, 160Wh or less each.

Related items

Official baggage page

Sources for this page

Read more

Back to Baggage rules by airline

Compiled by Japan Japan !! · Updated October 3, 2026