Incheon transfer screening
- Ordinary liquids/gels must be in containers of no more than 100 mL.
- Put them inside a sealed transparent resealable bag of 1 L or less.
- Liquids bought duty-free may be accepted only when sealed inside the specific duty-free liquids security bag required by the airport; an ordinary shopping bag is not enough.
Before connecting
- Check both the original airport's and Incheon's transfer screening rules.
- Keep duty-free security packaging intact and follow security staff instructions about proof of purchase.
- For another overseas transfer after Incheon, check that country's rules; different rules may require disposal or surrender.
- Keep security screening separate from landside airport shuttles and immigration procedures.
These are rules for ordinary liquids. Breast milk, infant formula and necessary medicines can have separate exemptions and need their own checks.