Hainan Airlines carry-on rules by route (2026)

Hainan Airlines distinguishes domestic, international/regional and US-related flights. Do not use a universal 5 kg, 10 kg or 15 kg allowance.

Size, weight and pieces

The weight is per piece, not a combined 15 kg Business allowance. Measure the packed outer bag and confirm safe cabin stowage. CarrySizer uses the conservative domestic 55×40×20 cm, 7 kg box and one main piece because it does not select geography; an international bag outside that baseline needs manual confirmation against the table.

Personal items and connections

Small personal belongings may be carried in addition, consolidated to fit under the front seat. The published reference is 30×30×20 cm. A separate numeric personal-item weight is not established; this does not promise an unweighed or unlimited bag. US departures specify one personal item.

Hainan states that its domestic/international segments on one through ticket can use the higher cabin allowance. Specified separate-ticket Hainan connections with a domestic transfer shorter than 24 hours can also use the international/regional standard on the domestic segment. Confirm the actual tickets and operating carriers before relying on either exception.

Infants, strollers and excess baggage

The current page applies the adult cabin allowance to infants without seats, subject to route. A portable folded stroller or similar equipment must fit 55×40×20 cm for cabin carriage; larger equipment must be checked. Confirm acceptance, charges and collection point. A purchased seat does not by itself establish child-seat approval.

Excess size, weight or pieces require checking; a charge can apply beyond the free checked allowance. No fixed online or gate fee is established here. Confirm baggage before reaching the gate and retain permitted spare batteries and essential items in the cabin.

Liquids and batteries

International/regional liquids use containers up to 100 ml in one clear resealable 1 litre bag. Domestic liquid restrictions differ: limited screened cosmetics, toothpaste/shaving cream, necessary infant milk and medicines have specified exceptions. Check the official notice for your connection.

Hainan requires spare batteries and power banks in the cabin. Domestic power banks need clear 3C markings and must not be recalled; capacity and carrier approval conditions also apply. Do not assume every power bank below 100 Wh is automatically acceptable.

Check the published airline record and compare your packed bag. The calculator does not authorize dangerous goods or decide route-specific exceptions.

Official sources

• Hainan carry-on baggage by route
• Hainan liquid-items notice
• Hainan baggage restrictions