The Havaş (HAH-vahsh)
company operates airport
shuttle buses serving Istanbul's Atatürk
Airport on the European
side of the city and also Sabiha
Gökçen Airport on
the Asian side.
You can use Havaş buses
to go from the airport into the city,
and even to travel from one
airport to the other.
The main Havaş city terminals are
at Taksim
Square in Beyoğlu on
the European side of the Bosphorus,
and at the Kozyatağı Business
Center in Kadıköy on
the Asian shore.
Take a Havaş airport bus from either
airport to either of these city terminals,
and you can transfer to another Havaş
bus going to the opposite airport.