9 Air carry-on size and personal item rules

9 Air carry-on allowance by fare

9 Air checked baggage by fare

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 9 Air carry-on rules

• 9 Air is based in China with its hub at CAN, and its main markets include Thailand, Vietnam, Malaysia and South Korea.
• Among the 31 verified airlines from East Asia, 9 Air has the 31st largest cabin bag allowance; 9 Air itself is the strictest.
• As a box, 9 Air's 20×30×40 cm limit holds about 24 litres, the 165th largest volume of the 170 airlines that publish three cabin bag sides.
• With a total size of 90 cm (35.4 in), the 9 Air cabin bag is larger than 2% of the 189 verified airlines that include a measured cabin bag in their standard fare (rank 185 of 189, largest first).
• The average cabin bag of the 31 verified carriers from East Asia adds up to 112.9 cm (44.5 in); 9 Air's limit is 22.9 cm (9 in) less than that.
• Tested against 9 Air's 20×30×40 cm limit, a standard US carry-on of 22 × 14 × 9 in (55.9 × 35.6 × 22.9 cm) is 15.9 cm (6.3 in) too big on the length (and 2 other limits).
• A typical European cabin case of 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in) is 15 cm (5.9 in) too big on the length (and 1 other limit) when measured against 9 Air's 20×30×40 cm.
• Of 177 verified airlines with a published cabin weight limit, 93 allow more than 9 Air's 7 kg (15.4 lb) for the cabin bag and 11 allow less.
• Exceptions noted on the official 9 Air page: 9 Air premium economy passengers may bring a larger cabin bag (20 × 40 × 55 cm, wheels not included), still within 7 kg. (official text: “高端经济舱产品旅客携带的非托运行李总体积不能超过20×40×55厘米（不含轮）”)
• Compared with 9 Air's 90 cm (35.4 in): at CAN, China Southern Airlines allows 25 cm (9.8 in) more in total (115 cm (45.3 in)).

9 Air carry-on questions

Does 9 Air have a weight limit for carry-on bags?

Yes. On every fare, 9 Air sets 7 kg (15.4 lb) for the cabin bag.

Will a 55 × 40 × 20 cm carry-on fit 9 Air's limit?

No: against 9 Air's 20×30×40 cm limit, a hard 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in) case is 15 cm (5.9 in) too big on the length (and 1 other limit).

Airlines related to 9 Air

• China Southern Airlines carry-on size — also flies from CAN
• Air China carry-on size — also based in the same country
• Chengdu Airlines carry-on size — also based in the same country
• China Eastern Airlines carry-on size — also based in the same country
• HK Express carry-on size — low-cost airline from East Asia
• Jeju Air carry-on size — low-cost airline from East Asia

Strictest carry-on airlines · All airlines

Official sources

• https://www.9air.com/cmsProvider/dblm/cxzb/xlxz.htm — checked on 8 October 2026
• https://www.9air.com/cmsProvider/dblm/ysgd/lkxz_gj_.htm — checked on 8 October 2026

Report an error on this page