Travellers arriving at Copenhagen Airport (CPH) may notice significant construction works around the rail and metro stations under Terminal 3.
The airport’s train station is being expanded with two new platforms, a dedicated footbridge, and improved track layouts in a project called New Kastrup Airport Station. This upgrade is designed to meet future demands on the Øresund Line and ensure seamless connections between planes, trains and metro.
Why the Copenhagen Airport Station Expansion Is Happening
The rail station at Copenhagen Airport (Kastrup) – officially the station beneath the airport terminal serving the Øresund Line – is undergoing a substantial upgrade. The operator Sund & Bælt explains that the section is a “very busy section which means that current capacity is challenged” and that further demand is expected when the Fehmarn Belt Fixed Link opens.
Specifically, the project known as New Kastrup Airport Station encompasses:
- The addition of two new platforms north of Terminal 3.
- Upgrades of the existing platforms and improvement of track layout, including new points/switches to allow more direction-specific train operations.
- A new pedestrian/footbridge linking the new platforms and the airport terminal, improving accessibility for passengers.
The aim: better capacity, smoother passenger flows, and more efficient handling of trains — both passenger and freight.
What this means for visitors
For someone arriving at or departing from Copenhagen Airport:
- The Copenhagen airport train station remains fully operational under Terminal 3 as usual. The visible construction works (platforms north of the terminals, new structures, trackworks) are part of the expansion.
- If you notice large cranes, new gantries or bridge segments being lifted, those are part of the project (a recent lift of a pedestrian bridge section weighed 216 tons). This is more visible when you take the metro from CPH airport.
- While the rail services are not disrupted significantly for passengers, there are associated impacts, including on road access. For example, the motorway exit (Exit 16) to the airport was temporarily closed in late 2025 because of crane work.
- Once complete, travellers can expect faster connections, improved signage and better integration between airport, train and metro services.
Key project facts and timeline
- The station expansion is timed for 2020–2025 (with new platforms scheduled to be ready by end of 2025) according to the design-firm Arkitema.
- The new platforms will each be approximately 350 m long.
- The work includes both passenger-rail and freight-rail infrastructure, especially because the Øresund line will see higher freight traffic once the Fehmarn Belt link is in operation.
Note: This article was written by ChatGPT. More information at the project’s and designer’s websites. Photo credit: Arkitema.
