BER Airport station (German: Bahnhof Flughafen BER), until December 2023 Flughafen BER – Terminal 1-2 station, is a railway station located under the main terminal of Berlin Brandenburg Airport, Germany serving its Terminals 1 and 2. Most train services are operated by Deutsche Bahn, which provides long-distance and regional connections while S-Bahn Berlin offers suburban lines.

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The station is located in a 3.1-kilometre-long (1.9 mi) tunnel, on the Glasower Damm Ost–Bohnsdorf Süd railway and the Grünauer Kreuz–Berlin Brandenburg Airport railway, both of which branch off the Berlin–Görlitz railway; the Glasower Damm Ost–Bohnsdorf Süd railway also branched off the Berlin outer ring. It is in the municipal territory of Schönefeld, just outside Berlin.

Construction of the station began in 2007 and the construction of the tunnels was completed on 25 June 2009. The station was handed over to Deutsche Bahn on 30 March 2010 and has been electrified since 7 June 2011. The public clients agreed to pay a fixed price of 285 million euros, although the actual construction cost was well below that number. While the airport itself was not in operation, empty trains were running through the tunnels to drive out humidity. DB ultimately sued the airport for damages due to the unused station. The station was opened for regular passenger traffic on 26 October 2020, a few days before opening of the airport.

The station is served by Berlin S-Bahn, Regional-Express and InterCity services. The station lies directly under the airport terminal and has six platforms. Two of these are terminating platforms for the S-Bahn lines S45 and S9. The airport is connected with Berlin Hauptbahnhof (Berlin main station) by the Airport Express (FEX), with a journey time of 29 minutes as well as slower regional and suburban connections. Upgrades on the Berlin Dresden railway will enable faster and more frequent FEX, RE and IC service in 2025. Then two stops at Potsdamer Platz and Berlin Südkreuz will be part of the Airport Express (FEX), which is planned to make the trip to Berlin Hauptbahnhof (Berlin main station) in 20 minutes. Until then, the Airport Express (FEX) will run via Berlin-Gesundbrunnen and Ostkreuz.

Deutsche Bahn confirmed in August 2011 that multiple daily Intercity-Express and InterCity trains will connect the airport to Bielefeld, Hannover, Hamburg, Dresden and Wolfsburg. EuroCity trains will also connect to Wrocław and Kraków in Poland and Amsterdam in the Netherlands. After the delayed opening, it is not clear when this will happen. Currently there is only an InterCity train to Dresden and Rostock.

Due to the closure of Terminal 5, the station was renamed Flughafen BER station in December 2023, reflecting it is now the sole station serving the airport.

The station is served by the following regular service(s):

Line	Route		Interval
IC 17	Warnemünde – Rostock – Waren – Neustrelitz – Oranienburg – Berlin Gesundbrunnen – Berlin Hbf – Berlin Südkreuz – BER Airport – Elsterwerda – Dresden (– Chemnitz)		120 min
ICE 21	Dresden Hbf – Flughafen BER – Berlin Hbf – Eberswalde – Stralsund – Ostseebad Binz		One service Sa towards Binz
FEX	BER Airport – Berlin Ostkreuz	– Berlin Gesundbrunnen – Berlin Hbf	30 min
		– Berlin Ostbahnhof – Berlin Alexanderplatz – Berlin Hbf – Charlottenburg	Some nighttime services
RB 22	Königs Wusterhausen – BER Airport – Ludwigsfelde-Struveshof – Saarmund – Potsdam – Pirschheide – Golm – Potsdam Park Sanssouci – Potsdam Charlottenhof – Potsdam Hbf – Potsdam Griebnitzsee		60 min
RB 23	BER Airport – Berlin Ostkreuz – Berlin Ostbahnhof – Berlin Alexanderplatz – Berlin Friedrichstraße – Berlin Hbf – Berlin-Wannsee – Potsdam – Golm		60 min
RB 24	BER Airport – Blankenfelde – Dahlewitz – Rangsdorf – Dabendorf – Zossen – Wünsdorf-Waldstadt		60 min
RB 32	BER Airport – Birkengrund – Ludwigsfelde		60 min
RE 2	BER Airport – Königs Wusterhausen – Cottbus		One nighttime service
RE 8	BER Airport – Berlin Ostkreuz – Berlin Hbf – Berlin-Spandau – Nauen – Neustadt – Wittenberge		60 min
S9	Flughafen BER – Schönefeld – Schöneweide – Warschauer Straße – Ostbahnhof – Alexanderplatz – Friedrichstraße – Hauptbahnhof – Zoologischer Garten – Charlottenburg – Westkreuz – Spandau		20 min
S45	Flughafen BER – Schönefeld – Schöneweide – Neukölln – Hermannstraße – Tempelhof – Südkreuz		20 min

After upgrades on the Berlin Dresden railway, the airport express (FEX) to Hauptbahnhof is to run via Südkreuz and Potsdamer Platz.

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  Construction work at the entrance of the rail tunnel (July 2010)
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  Airport express train
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  Platform track 2 and sign
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  Map of railway connections at Berlin Brandenburg Airport

• Airport rail link
• List of railway stations in the Berlin area
• Rail transport in Germany

Media related to Berlin Brandenburg Airport railway station at Wikimedia Commons