From Pula to Zagreb there is a travel distance of about 270 Km, trough out the year there are bus connection between the cities, during summer season there are additional seasonal lines available. The travel time for the fastest connection is about 3.5 hours. You can see timetable for buses between Pula and Zagreb below, if you are doing a roundtrip, you can save money if you buy a return ticket with the SAME bus company, return timetable (From Zagreb to Pula) you can find here. In Pula the buses departure from the main bus station, which is located about 800 from the Arena in Pula. In Zagreb the drop of point is also the main bus station. If you wish to travel from Pula airport, you first have to take airport bus to the city centre.