By flight with Scandinavian Airlines and Norwegian. It only takes 75 minutes to fly from Stockholm-Arlanda to Luleå Airport.
By train with Vy or SJ. Every night trains to Luleå Central Station depart from Stockholm and Gothenburg.
By bus with Länstrafiken Norrbotten. In fact, you can travel all over Norrbotten County and Swedish Lapland from the bus station in Luleå City Center.
If you are travelling north by car, the E4 is the best and easiest motorway to take. Indeed, it stretches from Haparanda on the Finnish border to Helsingborg in Southern Sweden.