This website explains the screening process at Narita Airport.
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Due to variations in security screening criteria in Japan and other countries, you must undergo an additional screening in Japan before transferring to your international flight, even if you have already received a screening at another overseas airport.
Restrictions on Carry-on Liquids will be applied at the screening areas for international flights.
See the figure at right for quantities of liquids permitted on board the aircraft.
For more details, please see the Restrictions on Carry-on Liquids page.
Note: If you are carrying liquids in excess of the permitted quantities, you will have to voluntarily dispose of them at the security check for transit passengers, even if the liquids are liquors, perfumes or other duty-free items purchased in the duty-free area of the airport from which you departed.
The carry-on liquid restrictions also apply to liquors, perfumes and other duty-free items.
If Narita is your last transiting airport, you can purchase any products with quantities exceeding 100 ml (g) at the duty-free area in Narita.
Otherwise please purchase any products with quantities exceeding 100 ml (g) at the duty-free area of the airport in which you will undergo your final transit security screening.
A Security Tamper Evident Bag (STEB) is a special clear plastic bag to hold duty-free liquids. It is currently being used by some countries.
At airports in Japan, including Narita Airport, the Restrictions on Carry-on Liquids will be applied to all liquids purchased at duty-free shops in airports outside of Japan during transit to an international flight, even if the liquids are placed inside a STEB. This is because such bags have not been approved by the Japan Civil Aviation Bureau. Please note that if you are carrying liquids in excess of the permitted quantities, you will have to voluntarily dispose of them at the screening area.
For more information, please contact your airline.
Checks are also conducted for prohibited items other than liquids in carry-on baggage at the security checkpoint for transit passengers.
For examples of prohibited items, see the Prohibited Carry-on Items List page.
