Berlin Airport Kills Security Slot Booking as CT Scanners Take Over

In April, nine out of ten passengers who booked a dedicated security slot at Berlin Brandenburg Airport quietly decided not to use it when their travel day arrived. On May 26, 2026, BER shut the booking tool down for good.

The cause was not apathy about queue times. Computed tomography (CT) security scanners, now covering 24 lanes across Terminals 1 and 2, had made the bookable fast-track redundant before the airport ever announced its closure. Passengers who once pre-booked a slot to beat uncertainty were walking past the dedicated channel and joining general CT queues instead, with no reservation required, no liquids to decant, and no laptops to pull from a bag.

The 90-Percent Stat That Ended the Booking Service

The BER Runway service launched in August 2022 as a practical answer to rebounding post-pandemic passenger volumes. For a free 15-minute window, booked up to seven days before a flight through the BER website or app, travelers could walk to a dedicated entrance at Terminal 1’s Security Control 2 and bypass the standard queue with a boarding pass check at the door. The concept was sensible for its moment: standard security lines were unpredictable, and a fixed slot gave corporate travelers something concrete to build a ground schedule around.

• 90% of April 2026 slot-holders abandoned their booking and chose CT lanes instead
• 24 CT-equipped security lanes now operate across Terminals 1 and 2 at BER
• 2 litres maximum liquid per person permitted at CT lanes, against 100 ml at conventional checkpoints
• August 2022 to May 26, 2026: the full operational lifespan of the BER Runway booking service

What the service could not anticipate was its own channel becoming the inferior choice. BER began installing CT equipment in Terminal 2 in early 2024, added Control Area 5 in Terminal 1’s South Pavilion in April 2025, and completed Control Area 1 in the North Pavilion ahead of schedule, finishing several months earlier than the originally planned autumn 2025 deadline. As CT coverage expanded across those sections, the Runway channel stayed on older X-ray machines in Terminal 1’s central hall. The behavioral math followed. Why pre-book a specific slot and accept the 100-ml liquid constraint when the lane twenty meters away had neither?

BER’s official announcement, published May 21, confirmed the service would end after the Whitsun weekend, effective May 26. “Since Areas 1 and 5 in Terminal 1 were fully equipped with modern CT technology, the BER Runway has been used less and less,” the statement read. No executive quote accompanied the closure; the 90-percent figure made the case without one.

How CT Technology Changed the Security Calculus

Conventional airport X-ray machines project a 2D image of bag contents. Screeners examine a flat overlay of everything packed together and rely on training to distinguish threat shapes through the visual ambiguity created by overlapping objects. Liquids are restricted to 100 ml per container not purely as a legacy policy artifact but because larger amounts are genuinely difficult to classify reliably in flat projection. Electronics go into separate trays because laptops and tablets create dense shadow clusters that can obscure items packed behind them.

CT scanners work on a different axis. The gantry rotates around the bag as it passes through on the conveyor, capturing hundreds of X-ray images from different angles and reconstructing them into a real-time 3D volumetric model. Threat detection algorithms scan the result automatically and flag anomalies for the operator, reducing both false alarms and the frequency of secondary bag searches. Smiths Detection’s HI-SCAN 6040 CTiX, the model installed at BER, is certified under the European Civil Aviation Conference (ECAC) EDS CB C3 standard, the classification that formally permits airports to drop the electronics-removal requirement and the 100-ml liquid rule simultaneously. BER’s security control information page confirms passengers on CT lanes may carry liquids up to two litres without removing them from their bag.

The throughput gap is the practical consequence. Trials of comparable CT systems at European airports showed passengers clearing security in roughly half the time of conventional X-ray lines, largely because the bag-unpacking step disappears and secondary checks fall sharply. At BER, that throughput difference became visible in April’s no-show statistics before any formal study was needed.

The irony of Runway’s final months is almost mechanical. The airport had built a bookable lane premised on speed, then installed technology in adjacent lanes that delivered more speed without a booking. Once passengers discovered that, the reserved channel became the slower option, and a service built to reduce uncertainty became a source of it.

The Gap Corporate Travelers Still Face

BER’s transition is not yet complete, and the unfinished portion matters for anyone managing group departures or fixed ground-time windows. Control Areas 2 and 4 in the central hall of Terminal 1, the section that housed the Runway channel, still run conventional X-ray equipment. BER has ordered CT hardware for those lanes and says refurbishment will begin in autumn 2026, but until that work is finished, the central hall operates under the old rules. Before May 26, a corporate travel desk could ring-fence a Runway slot for a group departure, giving a fixed security window to build against. That option is now gone across all 24 lanes, replaced by first-come, first-served queuing with real-time wait-time data as the only routing tool.

• No slot booking exists at any BER checkpoint; the first-served queue is universal until further notice
• Central hall lanes (Areas 2 and 4) still require 100-ml liquid compliance and electronics removal, a mismatch risk if travelers have packed for CT
• Group and charter departures through Terminal 1’s central section need at least 15 extra minutes of buffer until the autumn CT retrofit completes
• Corporate travel policy documents and pre-trip communications referencing BER Runway require updating; the booking path no longer exists at check-in

For individual business travelers using Control Areas 1 or 5 in Terminal 1, or the Terminal 2 checkpoint, the disruption is minimal. Aletta von Massenbach, chief executive of Flughafen Berlin Brandenburg GmbH, reported when completing the north pavilion CT rollout that the vast majority of travelers were clearing security in under ten minutes. Pack without thinking about unpacking, check the wait-time monitor for the fastest approach, and join any open lane.

A Pattern Running Across European Terminals

BER is not the first European hub confronting what happens to slot systems once CT coverage reaches critical mass, and the responses are not uniform. Amsterdam Schiphol completed a full CT rollout in 2021, becoming the first major European airport to do so, yet still runs a pre-bookable security slot service where travelers can reserve a time window up to three days before a flight. Frankfurt Airport maintains a time-slot booking service as well. Its security checkpoint guidance notes CT scanners at some checkpoints but directs passengers to keep following the 100-ml rule since it is not possible to predict which checkpoint they will enter. Edinburgh Airport lifted the 100-ml restriction entirely after its own CT installation. London City became the first major UK airport to rely solely on CT scanners in early 2023.

The contrast with BER’s decision is instructive. Frankfurt retains its slot service partly because conventional lanes remain active across large portions of its terminal infrastructure, making a slot a genuine routing guarantee toward a specific checkpoint type. At BER, the Runway channel itself used conventional X-ray gear. By the time of the May shutdown, booking a Runway slot was explicitly booking access to the slower technology. The service had inverted its own purpose.

Munich is on a similar hardware trajectory. Smiths Detection, the same supplier that equipped BER, announced in October 2023 a contract to supply Munich Airport with 60 HI-SCAN 6040 CTiX carry-on baggage scanners capable of processing more than 30 million annual passengers, with deliveries beginning in early 2024. As Munich’s CT footprint expands across its terminals, corporate travel desks managing Berlin-to-Munich or Berlin-to-Frankfurt shuttle routes should expect the same behavioral patterns to emerge at the destination end of those routes.

Getting Through BER’s 24 Lanes Today

For travelers arriving at BER after the Runway shutdown, the practical picture is simpler than it was two years ago. Every checkpoint leads to every gate, and the distance between the fastest and slowest lane has narrowed as CT coverage has grown. The BER app and website show real-time wait times at all control areas; on-site monitors at the airport display the same data. BER Biometrics, the airport’s contactless identification service available through the SmartDepart app, routes enrolled passengers directly to CT-equipped Security Controls 1 and 5, removing the boarding pass scan from the process. It is the closest functional substitute the airport currently offers for the fixed-access logic of the old Runway booking.

The broader airport digital layer is thickening in parallel. From boarding pass delivery to checkpoint routing, the infrastructure that once required a manual booking is shifting toward ambient digital tools. Oton Technology recently covered how Google Wallet’s airport boarding pass automation is folding the same pre-flight friction into loyalty-card logic, illustrating how the same disruption pressure that killed BER Runway is reshaping touchpoints across the entire airport journey.

1. Check the BER app or website for live wait times before walking to any checkpoint; the displays update continuously
2. Head to Control Areas 1 or 5 in Terminal 1, or the Terminal 2 security area, for CT screening; no need to remove laptops or liquids under two litres
3. If directed to the Central Hall (Control Areas 2 or 4), follow standard X-ray rules: 100-ml containers in a 1-litre transparent bag, electronics out of the bag
4. Download the SmartDepart app and register BER Biometrics for boarding-pass-free access to CT checkpoints on future trips
5. For groups and charters, add at least 15 minutes of buffer to ground time until the central hall CT retrofit completes in autumn 2026

If BER completes the central hall retrofit on schedule, the last conventional lane at the airport goes offline before the winter timetable begins and the rules become uniform across all checkpoints. If the project slips, the central section continues running X-ray gear with no slot-booking option and slower throughput alongside some of the fastest security lanes in Germany. By late October, that question should have an answer.