Originally Posted by
@ORD
IIRC there is at least one company that runs buses between IST and Taksim Square, on a half hourly basis. So if your hotel is not far from Taksim Square, this is a viable option. Those buses are very comfortable, compared to the cramped yellow taxis. Last time i used it, the price was 10 lira per person.
Good luck!
@ORD
This shuttle service, Havatas, costs 10 Turkish Lira and also stops in Aksaray, which is a short tram ride to the old city Sultanahmet. I'd take the shuttle and then get a taxi from town to the hotel if you care about saving money.