What a CT scanner changes
Standard 2D X-ray machines can't reliably see through liquid containers larger than 100ml, which is why the 100ml rule exists. CT scanners build a 3D image that lets screeners see what's inside larger bottles. Where an airport has installed CT scanners across all lanes AND received regulator sign-off, it can allow containers up to 2 litres and drop the clear-bag requirement. Missing either piece keeps the airport on 100ml.
UK airports — 2026 status
| Airport | IATA | Current rule | Notes |
|---|---|---|---|
| London Gatwick | LGW | 2L allowed | CT scanners across both terminals |
| Edinburgh | EDI | 2L allowed | CT rollout complete |
| Birmingham | BHX | 2L allowed | CT scanners across all lanes |
| Bristol | BRS | 2L allowed | CT scanners across all lanes |
| Belfast International | BFS | 2L allowed | CT scanners across all lanes |
| Aberdeen | ABZ | 2L allowed | CT scanners across all lanes |
| London Luton | LTN | 2L allowed | CT scanners across all lanes |
| London Heathrow | LHR | 100ml | CT rollout ongoing across T2-T5 |
| Manchester | MAN | 100ml | CT rollout ongoing |
| London Stansted | STN | 100ml | CT rollout not yet complete |
EU and worldwide — 2026 status
| Airport | IATA | Current rule |
|---|---|---|
| Amsterdam Schiphol | AMS | 100ml |
| Paris Charles de Gaulle | CDG | 100ml |
| Frankfurt | FRA | 100ml |
| Madrid Barajas | MAD | 100ml |
| Rome Fiumicino | FCO | 100ml |
| Dublin | DUB | 100ml (T1 & T2 CT rollout ongoing) |
| Shannon | SNN | 2L allowed |
| Milan Linate | LIN | 100ml |
| Helsinki-Vantaa | HEL | 2L allowed |
| Zurich | ZRH | 100ml |
How to travel through a CT-scanner airport
- Keep liquids in your bag — no need to unpack unless signage says otherwise
- No clear bag required, but any decant kit you already have still works
- Individual containers can go up to 2L; total volume is not restricted
- Duty-free rules are unchanged — tamper-evident bags still required for onward connections
- If the airport reverts to 100ml, staff will tell you at the lane — no advance notice is guaranteed
What if I'm connecting?
Your outbound airport's rule sets what you can carry through security once. If your connecting airport still uses 100ml, any bottles over 100ml you're carrying from the first airport may be confiscated at the transfer screening. Either drink or bin them before transferring, or pack them in checked baggage.