Does Air Seoul have a weight limit for carry-on bags?

Yes. On every fare, Air Seoul sets 10 kg (22 lb) for the cabin bag and 10 kg (22 lb) for both bags together.

Will a 55 × 40 × 20 cm carry-on fit Air Seoul's limit?

Yes: against Air Seoul's 55×40×20 cm limit, a hard 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in) case matches the limit exactly (0 cm margin).

Do wheels and handles count in Air Seoul's carry-on size?

Yes. Air Seoul's official page says the 55×40×20 cm limit includes wheels and handles.

Air Seoul carry-on size and personal item rules

East Asia
Low-cost
Verified 8 October 2026

Air Seoul (IATA: RS) allows one cabin bag of 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in), and no more than 115 cm (45.3 in) in total and 10 kg (22 lb) on every fare, plus a personal item. Both bags together may weigh up to 10 kg (22 lb). Air Seoul counts wheels and handles in this size. Verified on 8 October 2026 from the official Air Seoul baggage page.

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Air Seoul carry-on allowance by fare

Air Seoul (RS) cabin baggage rules, as published by the airline
Fare	Route / class	Personal item	Cabin bag	Weight
All passengers(standard)	All routes · Economy	size not published	55×40×20 cm, 10 kg	cabin bag 10 kg; 10 kg for both bags

Front

Side

Air Seoul cabin bagUS 22×14×9 inEU 55×40×20 cm

Air Seoul checked baggage by fare

Checked (hold) baggage included in each Air Seoul fare, as published by the airline
Fare	Checked baggage	Source
All passengers	Depends on the fare you buy within this cabin	official page

Checked baggage verified 11 October 2026. Your booking confirmation shows the exact allowance for your trip.

Checked bag fees (we never show prices, they change by route and date): see the official page

What to know about Air Seoul carry-on rules

From ICN, Air Seoul mainly connects South Korea with Japan, Vietnam and Taiwan.
Among the 31 verified airlines from East Asia, Air Seoul has the 2nd largest cabin bag allowance; the strictest is 9 Air (20×30×40 cm).
In volume terms the Air Seoul cabin bag reaches about 44 L; 116 of the 170 airlines with published sides allow a bigger box.
With a total size of 115 cm (45.3 in), the Air Seoul cabin bag is larger than 19% of the 189 verified airlines that include a measured cabin bag in their standard fare (rank 50 of 189, largest first).
Compared with the 31 airlines from East Asia on this site, whose cabin bags average 112.9 cm (44.5 in) in total, Air Seoul allows 2.1 cm (0.8 in) more.
A standard US carry-on of 22 × 14 × 9 in (55.9 × 35.6 × 22.9 cm) is 2.9 cm (1.1 in) too big on the depth (and 1 other limit) when measured against Air Seoul's 55×40×20 cm.
Tested against Air Seoul's 55×40×20 cm limit, a typical European cabin case of 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in) matches the limit exactly (0 cm margin).
Of 177 verified airlines with a published cabin weight limit, 9 allow more than Air Seoul's 10 kg (22 lb) for the cabin bag and 129 allow less.
On Air Seoul (every fare), 10 kg (22 lb) is a combined allowance: add the weight of the personal item to the cabin bag.
Besides the 55×40×20 cm sides, Air Seoul caps the sum of length, width and height at 115 cm.
Air Seoul's official text counts wheels and handles in the 55×40×20 cm cabin bag limit.

Our notes on Air Seoul

Since 1 May 2022, Air Seoul measures carry-on baggage including handles and wheels. The bag may total 115 cm, with no side over 55 cm, 40 cm and 20 cm, and must weigh less than 10 kg.

Air Seoul also lets you bring one additional small item, such as a briefcase, laptop or duty-free goods, but the 10 kg is a total for both pieces, not per bag. Large musical instruments up to 115 cm (55 × 40 × 20 cm) can travel in the cabin only with an extra seat purchased for them. Leaving Incheon, weigh the two pieces together before you go.

Air Seoul carry-on questions

Does Air Seoul have a weight limit for carry-on bags?: Yes. On every fare, Air Seoul sets 10 kg (22 lb) for the cabin bag and 10 kg (22 lb) for both bags together.
Will a 55 × 40 × 20 cm carry-on fit Air Seoul's limit?: Yes: against Air Seoul's 55×40×20 cm limit, a hard 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in) case matches the limit exactly (0 cm margin).
Do wheels and handles count in Air Seoul's carry-on size?: Yes. Air Seoul's official page says the 55×40×20 cm limit includes wheels and handles.

Airlines related to Air Seoul

Jeju Air carry-on size — also flies from ICN
Air Premia carry-on size — also flies from ICN
Korean Air carry-on size — also flies from ICN
HK Express carry-on size — low-cost airline from East Asia
Tigerair Taiwan carry-on size — low-cost airline from East Asia

Strictest carry-on airlines · All airlines

Official sources

https://flyairseoul.com/CW/en/destinations.do — checked on 8 October 2026

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