We found the Airport Bus in Iasi (Romania), but it is not free, as we suggested in our projects:
Public Transport Company (CTP) Iasi is the main transit operator responsible for public transport in Iasi.
CTP, provides service on route 50, to the railway station of the city of Iasi from the airport, at certain times of the day, correlated with the arrival and departure of the flight.
As of September 2017, the fare is 2 RON (0.44 euros) per ticket for one trip.
Operator – CTP Iaşi
Route 50 Airport
Destination – from Iasi railway station to Iasi airport
Stops – Gara Iași – Piața Unirii (city center) – Tg.Cucu – Aeroport
For example, Taxi
Various taxis have access to the airport and back. Fee varies from 2.50 RON / km