Incheon International Airport liquid rules: 100 ml limit

What this means at Incheon International Airport

• Airport states: "liquids in containers of 100 ml or less are allowed if placed in a single 1 L transparent ziplock bag (20.5 cm * 20.5 cm / 15 cm * 25 cm) per person, with no restrictions on domestic flights".
• The same rule applies to liquid foods such as gochujang or kimchi: they are allowed in carry-on only in containers of 100 ml or less in the bag; in checked baggage they are allowed "without capacity limits".
• Airport states the bag must be sealed shut: "Liquids in containers of 100 ml or less are allowed if placed in a transparent ziplock bag of 1 L or less, with the bag sealed shut".
• Duty-free items are allowed regardless of volume only if they are placed in a "Duty Free Liquid Item Bag", which must remain sealed until boarding the final destination flight.
• Power banks under 160 Wh: up to 2 per person; those between 100 Wh and 160 Wh need airline approval.
• The page does not say whether liquids or laptops can stay in your bag at screening, and the airport asks you to verify with your airline for accurate information.

Source: Restricted Items | Incheon International Airport. Checked 12 October 2026.

Security rules are set by the airport, but your bag size is set by your airline. Check your bag against every airline here.

Frequently asked questions