The hotel chain St. Regis has one hotel in Istanbul.
It's The St. Regis Istanbul and it can be found on Mim Kemal Oke Caddesi No:35 Nisantasi. The hotel has 117 rooms and it's 1 out of 191 five-star hotels in Istanbul. The hotel has a review score of 9 out of 10 which is more than the avarage in Istanbul. However the score is based on a few number of user reviews and should be interpret accorcingly. This hotels check-in hours are standard for many hotels. You will be checking in from 15:00 and checking out at 12:00.
A list of all hotel chains with presence in Istanbul. You can also see a list of all hotels including those independent from any chain or organization.