Air

 Oslo Airport, Gardermoen - Norway's main international airport, served by the Oslo Airport Express Train (Flytoget) the high speed train service.

Sandefjord Airport, Torp (in Vestfold county about one and a half hours, or 115 km/71 mi away)

Moss Airport, Rygge (In Ostfold county, 65 km/40 mi away) 

Sea

There are daily ferry connections to Kiel in Germany), Copenhagen in Denmark), Frederikshavn in Denmark) and Nesodden.  Public ferries run daily to and from the islands dottyed in the Oslo harbour.

Train

"Sentralstasion" is the main railway station in Oslo. From here one can get connections todestinations Trondheim, Bergen, Stavanger, Stockholm (Sweden), Gothenberg (Sweden) and Copenhagen (Denmark), as well as local and regional destinations. Pncuality is around the mid 90's in percentages. However be aware that then sever conditions durin the winter can effect the timetabling......

The Oslo tram is used by 110,000 people everyday.

The public transportation system in Oslo is managed by the municipal transport company Ruter. This includes metro tram bus and ferry but not the local train lines (operated by the state NSB). All publiic transport in Oslo operate on a common ticket system, allowing free transfer within a period of one hour with a regular ticket. 

The tram system, Oslotikken, is made up of six lines that cover the inner city and extend out toward the suburbs.

The metro system—known as T-Bane—connects the eastern and western suburbs and via six lines which all converge in a tunnel in downtown Oslo. 

A partially underground loop lione was opened in August 2006, connecting Ulleval to the Carl Breners Plass. 

A public bicycle rental programme has been in operation beginning in April every year since 2002. With an electronic subscription card, users can access bikes from over 90 stations across the city. 

Road

As Oslo is Norway's capital and biggest city, many national and international highways pass through the city either by a tunnel or oon a ring road system. European Route 6 and 16 are connecting Sweden Oslo also has a system of "ring roads" connecting east and west.

Access into the city centre requires the payment of a toll at one of 19 entry points of the ring road - costing 25 NOK to enter the city limits. 

Revenues from the road tolls funded the public road network up to 2002 but this revenue now finances new developments for the public transport in Oslo.