More than 2 million passengers travel by international ferries each year. From Oslo, daily ferries go to Denmark and Germany. The ferries also transport a significant volume of cargo and goods.
Color Line has two cruise ferries operating between Oslo and Kiel.
Go Nordic has the route between Oslo and Copenhagen.
International ferries
| Color Line | Oslo - Kiel | Departures/ arrivals from Filipstad/Hjortnes | Dayly |
| Go Nordic | Oslo - København | Departures /arrivals from Vippetangen | Dayly |