TRAVEL TO AND FROM OSLO
There are direct flights to Oslo from most major cities in Europe, and from some cities in North America and Asia.
Approximate flight duration (some examples):
London–Oslo: 2 hours
New York–Oslo: 7.5 hours
Rome–Oslo: 3 hours
Moscow–Oslo: 2.5 hours
For more information see https://www.visitoslo.com/en/transport/to-oslo/flights/