Connections, security re-screening and duty-free liquids - 2026 guide
What happens to liquids, duty free and baggage during connections, including self-transfer, separate tickets and security re-screening.
Why you can use this page to make a decision
This page combines a direct answer with airport, airline and primary-source rules. Safety answers are not influenced by partner content or advertising.
A connection does not always stay airside
Depending on airport, terminal and itinerary, you may pass security again. Self-transfers and separate tickets increase the chance that you must collect baggage and re-enter departures.
Liquids can be screened again
A liquid accepted at the first airport is not guaranteed to pass a later checkpoint, especially when one airport allows 2 litres and another uses 100 ml.
Keep duty-free liquids sealed
Duty-free liquids should remain in the required sealed security bag with proof of purchase according to your route and transfer-airport rules.
Check in PreflightMate
Always check the official airport or airline source before travel. Rules can change and may be more restrictive.
What can I bring on a plane?
Connections can change the rule
During a connection, the key question is whether you clear security again and whether checked baggage is tagged through.
- Self-transfer and separate tickets increase the chance of re-screening and bag re-check.
- Keep duty-free liquids with proof of purchase and in the required sealed security bag.
- Check the transfer airport, not only the first departure airport.
Who prepares the answers
Content is prepared by the PreflightMate Research Desk from structured data and official sources. We do not present ourselves as an aviation authority or airline.
Automation helps format, compare and translate data. A rule marked verified must be linked to an official source; conflicts and exceptions remain visible.
A specific airport, airline, route, destination-country rule or a security officer may apply a more restrictive requirement.
Official source
European Commission - Aviation Security ↗
EASA - Dangerous goods when flying ↗
ICAO - Power bank restrictions 2026 ↗