Oulu is served by Oulu Airport, the second largest airport in Finland by passenger volume. It is located in the neighboring municipality of Oulunsalo, 15 kilometers (9 mi) from the city centre.
The Port of Oulu is one of the busiest harbors on the Bothnian Bay. It includes four separate harbor areas: Vihreäsaari oil and bulk docks, Nuottasaari docks, Oritkari docks, and the Toppila docks.
The shortest travel time from Oulu railway station to Helsinki Central railway station is 5 h 44 mins, operated by VR. Other destinations include, for instance, Kolari, Rovaniemi, Seinäjoki and Tampere.
The most important road in Oulu is highway 4 (E8/E75) that runs from Helsinki to Utsjoki via Lahti, Jyväskylä, Oulu, Kemi and Rovaniemi. Other highways running to and from Oulu are highway 20 to Kuusamo and highway 22 to Kajaani
