According to operator, Avinor, there were "substantial local variations" in traffic across the country.
Oslo Airport saw growth of 3.2% in January, compared with last year, with both domestic (+2.8%) and international (+4%) traffic on the rise as 1.65 million passengers passed through Norway's capital city gateway.
Trondheim Airport enjoyed a 3.5% increaae in traffic compared with the same month in 2014.
However, the monthy throughput dopped Stavanger's Sola Airport and Bergen Airport, both registering declines of 1.5% and 8% respectively, the latter despite a 9% rise in intermnational traffic.
Activity level of oil and gas industry important
There are local variations in the other airports in the Avinor network. Kristiansund, which is experiencing a difficult time due to dowtown in the offshore sector, saw its traffic figures drop by 17.1%.
In contrast, Hammerfest Airport exprienced a 47.6% rise in trafffic because of high levels of activity within the same industry.
Still growth in northern Norway
In general, there has is a steady growth in air traffic growth in northern Norway with Tromsø, Bardufoss and Mehamn each experiencing a 10% increase in passegers.
"Our airports play a key role for business and travel industry in northern Norway," says Avinor's VP regional airports division, Margrethe Snekkerbakken.