Sky, those guys don't start servicing that route until November.
well the price to punta cana is 500 euros and to puerto plata is 1100 euros and i booked it to punta cana, at least i will save 500 eurosDoes your airline service other cities? If you include wait times for the buses, etc., you are looking at an almost 10 hour trip. Scenic, but long. I don't know if any of the domestic carriers are offering flights between the two areas right now.
Check with Santo Domingo (SDQ) or Santiago (STI). Both are far closer to Puerto Plata, and will save you - at a minimum - 3 to 4 hours each way.
If not, I'd add a few days of internal travel time to the trip. You'll be totally wiped out if you spend 10 hours on a bus and another 8+ flying back to Europe, and will need a vacation from your vacation.
The thing is that i intend to stay a few good months in DR. A long long vacation to say From what i see there are about 430 km - 267 miles from Punta Cana to Puerto Plata via Santo Domingo. I'd say that the bus should not make more than 5 hours till there or even less or maybe i'm wrong