Dong Hoi is in Vietnam. The IATA code (ID) for this city is VDH.
Timezone of Dong Hoi is +7 GMT. Baku is 3 hours behind. Please keep in mind that airplane tickets show the local departure time, so you will have to set your watch prior to your flight.
Prices for flights from Dong Hoi depend on the season, destination, airline, and sales.