We went to Istanbul for 4 days during our 3 week stay in Calis in June.
We booked online with Turkish Airlines which was very simple. We flew from Dalaman.
Go to
http://www.thy.com/en-INT/ It cost £136.00 return for two, however, I have been told on some
occasions you can pick up cheaper flights.
Then we looked at Trip Advisor and paged through the Hotels in
Istanbul. Go to
http://www.tripadvisor.co.uk/Hotels-g293974-Istanbul-Hotels.html We picked one and emailed them and booked.
The hotel was wonderful and we will go back again as 4 days
is not enough to see everything. We loved Istanbul, so will you.
It's better to book yourself as you can then find the Hotel that
suits you and not that suits the travel agent.
Jacqui.