The average bus between Oslo S and Porsgrunn takes 2h 25m and the fastest bus takes 2h 15m. There is a bus service every few hours from Oslo S to Porsgrunn. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Oslo S and Porsgrunn. The earliest departure is at 6:00 AM in the morning, and the last departure from Oslo S is at 8:30 PM which arrives into Porsgrunn at 10:52 PM. All services require a transfer at Oslo bussterminal and take an average of 2h 25m. The schedules shown below are for the next available departures.

2h 35m • 1 change

2h 52m • 1 change

2h 25m • 1 change

2h 52m • 1 change

2h 15m • 1 change

2h 35m • 1 change

2h 15m • 1 change

2h 25m • 1 change

2h 15m • 1 change

2h 35m • 1 change

2h 15m • 1 change

2h 25m • 1 change
Want to know about travelling from Oslo S to Porsgrunn? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Oslo S to Porsgrunn. However, there are services departing from Oslo S station and arriving at Porsgrunn station via Skjelsvik knutepunkt. The journey, including transfers, takes approximately 2h 25m.
Oslo S to Porsgrunn bus services, operated by FlixBus, depart from Oslo bussterminal station.
Oslo S to Porsgrunn bus services, operated by FlixBus, arrive at Skjelsvik knutepunkt station.
The distance between Oslo S and Porsgrunn is 105.7 km. The road distance is 168 km.
Vy Buss operates a bus from Oslo bussterminal to Skjelsvik knutepunkt every 3 hours. Tickets cost kr 180–420 and the journey takes 1h 52m. Two other operators also service this route.