can you get a ferry from any cities in southern ukraine to istanbul during august?

There are rumours that Ukrferry has stopped doing Istanbul, and certainly their boat is no longer at the spot it was using for a long time. Check carefully before committing.
Yes, their website mentions only Illichevsk, Varna, Batumi, Poti and Kerch ports. No Istanbul at all.

their website mentions only Illichevsk, Varna, Batumi, Poti and Kerch ports. No Istanbul at all.
Didn't you get curious about 'Derince'? Obviously it's not strictly saying Istanbul, but a sea-port not very far ;)
As far as I understand, UkrFerry just switched to a bit "cheaper" nearby port
Didn't you get curious about 'Derince'?
Oops. I really don't know why I didn't get curious :)

There is one from Sevastopol, I took it about 5 years ago, and Yalta as well I think. VIsit http://www.letsgoistanbul.com/abroadferry.htm