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Departure-security rule

UK departure airports: carry-on liquid rules

UK airport liquid rules can differ by airport: most use 100ml containers, while some airports allow containers up to 2 litres.

Scope

Applies to security screening at UK departure and transfer airports. The exact airport rule controls; airline dangerous-goods rules and destination entry rules are separate.

What the authority says

  • GOV.UK says the rule depends on the airport, including the airport you depart from and any airport where you transfer.
  • At most UK airports, ordinary hand-luggage liquids must be in containers no larger than 100ml, even when partly full.
  • Some UK airports may allow containers that hold up to 2 litres. Medical, dietary and baby liquids can have separate screening procedures.

Before-you-fly checklist

  1. 1Look up the liquid-security instructions for your exact departure airport before packing.
  2. 2Check each transfer airport too; a permitted container can be stopped at a later security checkpoint.
  3. 3Keep medicine, baby food and duty-free liquids separated and follow the airport’s screening instructions.

Reviewed: 2026-09-29

Official source

GOV.UK: hand luggage liquids at UK airports

Also check

What is the 100ml liquid rule for carry-on bags?Perfume baggage rules
Rules vary by airline and route
Always verify important restrictions with your airline and the official security authority before departure.