Carry-on suitcase · 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in)
Tight exactly at the limit on the length
China Southern cabin bag and personal item size
Checked against China Southern's baggage page on 5 October 2026
Personal item (under the seat)
No size published
Cabin bag (overhead locker)
55 × 40 × 20 cm22 × 16 × 8 in
Weight: 8 kg (18 lb)
Will your bag fit China Southern?
Personal item. Free on every fare. A small computer bag, camera bag, briefcase or handbag is free and must go under the front seat. No size given.
Cabin bag. Included on every fare listed below. Economy and Premium Economy: 1 piece up to 8kg, domestic and international. Over limits must be checked.
What each China Southern fare includes
| Fare | Personal item | Cabin bag | Notes |
|---|---|---|---|
| Economy / Premium Economy | Included | Included (8 kg) | 1 piece, 8kg, 55x40x20cm. |
| First / Business | Included | Included (8 kg) | 2 pieces, 8kg each, 55x40x20cm. |
Will a standard carry-on fit China Southern?
The most common US carry-on size is 22 × 14 × 9 in (56 × 36 × 23 cm, wheels included). On China Southern it does not fit — 0.9 cm (0.4 in) too long, 2.9 cm (1.1 in) too deep. The common European cabin size, 55 × 40 × 20 cm, is right at the limit.
China Southern's cabin bag allowance holds about 44 litres. Only 5 of the 151 airlines we track have a smaller one, so bags sold as "carry-on size" in the US often won't pass here.
Bags that fit China Southern
We checked 1,046 bags with published sizes. China Southern gives no personal-item size, so we can only check the cabin bag. 422 fit the cabin bag size comfortably.
Cabin bag
Carry-on suitcase · 55 × 35 × 20 cm (21.7 × 13.8 × 7.9 in)
Tight exactly at the limit on the length; 5.4 kg left for packing
Carry-on suitcase · 55 × 35 × 20 cm (21.7 × 13.8 × 7.9 in)
Tight exactly at the limit on the length; 5.4 kg left for packing
Carry-on suitcase · 45 × 38 × 20 cm (17.7 × 15 × 7.9 in)
Tight exactly at the limit on the depth; 5.4 kg left for packing
All bags that fit China Southern →
If your bag is too big at the gate
Carry-on items that exceed the weight, piece or size limits must be transported as checked baggage, handled at the check-in counter. No fee stated. Source
Power banks on China Southern
You can’t use a power bank on board. Power banks up to 100 Wh go in the cabin; 100–160 Wh needs the airline's approval. Never in checked bags. Carry-on only. Keep power banks off the whole flight; no charging devices or the power bank. 100-160Wh needs declaration and CSAIR approval, max two. Over 160Wh prohibited. Unlabelled or recalled banned.
Work out your power bank's watt-hours · Power bank rules on every airline
Worth knowing
- Power banks must stay switched off for the entire flight.
- Power banks without a legible rated-capacity label are prohibited.
- Up to 20 backup batteries of 100Wh or less per passenger; no separate power bank count stated.
Airlines with similar limits
- Ryanair: 55 × 40 × 20 cm
- TUI Airways / TUIfly: 55 × 40 × 20 cm
- Icelandair: 55 × 40 × 20 cm
- Vueling: 55 × 40 × 20 cm
China Southern bag questions
What size is the China Southern personal item?
China Southern doesn't publish a personal-item size. A small computer bag, camera bag, briefcase or handbag is free and must go under the front seat. No size given.
How big can a China Southern cabin bag be?
Up to 55 × 40 × 20 cm (22 × 16 × 8 in), and no heavier than 8 kg (18 lb). The airline doesn’t say whether wheels and handles count, so measure them in.
Which bags fit China Southern's limits?
Of the 1,046 bags we track, 422 fit the cabin bag size. See the list.
Can I take a power bank on China Southern?
Yes, in your cabin bag only. You can’t use a power bank on board. Power banks up to 100 Wh go in the cabin; 100–160 Wh needs the airline's approval. Never in checked bags.
Sources. carry-on baggage allowance page · batteries / power bank page. Rules checked 5 October 2026. Some details the airline doesn’t publish are marked as such above. Airline staff have the final say at the gate. Spotted a change? Tell us.
Will This Bag Fit is independent and not affiliated with China Southern.