Is there any way to go Sosua-SDQ with public transport?
Absolutely but the last bus from downtown Santo Domingo to the airport leaves
at 10am which means you will need to leave Sosua on the first departing morning bus.
The station/ public transport for the airport is near Duarte and Feb 27.
Google maps search " Parada de Guaguas de Boca Chica"
To get to this bus station from the Caribe Tours bus station in Santo Domingo is
very easy. Just walk outside the main entrance of Caribe Tours SD, cross under
the overpass, then stand on the street corner (east direction) and wait for either
a gua gua or carrito to pass. Just ask/ say "Duarte?" then hop in, pay the driver
25 pesos and they will drop you off at the corner of Duarte and Febrero 27. From
there you will need to walk up one more block and make a right on the next street.
Then immediately on the left hand side of the street you will see the bus station.
Again, the last bus for the airport leaves at 10am.
It cost 60 pesos and drops you off at departures. Be sure to ask when
boarding "aeropuerto" just to make sure it doesn't bypass the airport as some do.
I used this bus about 3 weeks ago, no problem.
Safe travels