It is the second largest city in Västerbotten after Umeå and is located roughly halfway between it and Luleå. The Skellefte River passes through the city and it is located around 15 kilometres (9.3 mi) from the Bothnian Bay open sea. Skellefteå is served by Skellefteå Airport, abbreviated as SKF locally known as Falmark because of the village nearby, also around 15 kilometres (9.3 mi) from the city centre to the south.