I am planning a trip from Tulcea (few days in the Danube Delta) to Odessa/Chisinau.
I need an advice: Can I travel from Tulcea region directly to Odessa or not?
Thanks a lot!

I am planning a trip from Tulcea (few days in the Danube Delta) to Odessa/Chisinau.
I need an advice: Can I travel from Tulcea region directly to Odessa or not?
Thanks a lot!

from tulcea go to galat and from galat (a city near the border with Ukraine), there you can hitchhike from Galati to Reni (nearest town across the border in Ukraine; getting to it involves passing through a small part of Moldova) and take a bus to Odessa from there.
look at the map:
http://www.romaniatourism.com/romania-maps/romania/lmn789.html
there is a bus that came from bucharest and passing galat to chisinau finel destanation:
http://www.autogari.ro/Transport/Galati-Chisinau/260-14232.aspx?lang=UK
the company have a web: