To get from Tegel Airport to your destination:  The Airport is in Zone B and bus stops are outside of Terminals A & B.
A Public transportation information counter 'BVG' is in Terminal A; taxi stands are at TA & TC; (The rental car facility is in front of Terminal D). 
AIRVIS info screens at Arrivals areas of both Terminals A & E, and in the rental car center, now offer current traffic on road network in & around Berlin.  It also posts the quickest way to bus stops & Departures of city buses. 

can connect you to the train stations of the U-Bahn, S-Bahn and Regional Express trains, as well as to long-distance trains. 

TXL JettExressBus, lines S & U,  serve:  S:  Beussel Street,  S & U:  Main train station, S & U:   Brandenburg Arch, & S & U:  Alexander Place.  For more bus connections, open: vbb.de
X9 JetExpressBus,  Lines S & U,  stops first at Jungfernheide, and ends at the Zoo.
128 Bus,  Line U,  stops at Kurz-Schuhmacher place; Franz-Neumann place and Osloer street.
109 Bus, Lines S & U, stop at  U: Jakob Kaiser plance;  S&U: Jungfernheide & S & U: at Zoo.

  Train Stations 'Sudkreuz' (Southern Cross) or Berlin Hauptbahnhof (Main Rail Terminal) are both only a 30-minute ride from Tegel Airport.  From there multiple train connections are available for regional or long-distance travel.

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