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. Having CT scanners alone is not enough: the container limit, the clear-bag requirement and whether liquids must be removed are separate rules that can differ by airport, terminal and destination. A 2L container allowance does not automatically mean the bag is waived — check each rule for your departure airport and terminal.
UK airports — 2026 status
| Airport | IATA | Current rule | Notes |
|---|---|---|---|
| London Gatwick | LGW | 2L allowed | CT scanners across both terminals |
| Edinburgh | EDI | Official guidance: up to 2L; check current status | Clear-bag rule not stated; bring one to be safe |
| 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 | 100ml (pending) | 2L status not confirmed by the airport — pack to 100ml |
| London Luton | LTN | 100ml | No plastic bag needed; liquids stay in your bag |
| London Heathrow | LHR | Up to 2L per container (T2–T5) | Not on flights to Australia (100ml); metal/insulated bottles must be empty |
| Manchester | MAN | 100ml | No plastic bag needed; liquids stay in your bag |
| London Stansted | STN | 100ml | Liquids stay in your bag at screening |
EU and worldwide — 2026 status
| Airport | IATA | Current rule |
|---|---|---|
| Amsterdam Schiphol | AMS | 100ml |
| Paris Charles de Gaulle | CDG | 100ml |
| Frankfurt | FRA | Mixed: CT at most T1 and all T3 checkpoints; C1/C2/C4/C6, special T1 and transfer checks keep 100ml — pack to 100ml |
| Madrid Barajas | MAD | 100ml |
| Rome Fiumicino | FCO | Up to 2L per container, except USA/Israel flights from T1 (100ml) |
| Dublin | DUB | Up to 2L per container, both terminals, incl. connecting checks; no clear bag |
| Shannon | SNN | Under review: 7 Sep 2026 announcement describes up to 2L per container (clear-bag rule not stated) — pack 100ml until confirmed |
| Milan Linate | LIN | Up to 2L per container (ENAC, Aug 2025) |
| Milan Malpensa | MXP | Mixed: up to 2L at T1; 100ml in a bag at T2 except Fast Track (ENAC) |
| Helsinki-Vantaa | HEL | 100ml per container, up to 2L total per passenger on departure; no separate bag (transfer security: 100ml in a 1-litre bag) |
| Zurich | ZRH | 100ml |
How to travel through a CT-scanner airport
- Check separately whether liquids may stay in your bag — follow signage and staff at the lane
- Check whether a clear bag is still required; a 2L allowance does not automatically waive it, so carry one if unconfirmed
- Check the container limit for your departure airport and terminal — and any connection or destination screening; don't assume there is no total-volume limit
- 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.