The nearest airport is Gothenburg Airport (Code GOT; it's west of Gothenburg, in the town of Landvetter).
There is an airport bus, "Flygbussarna", which also has a bus stop at "Korsvägen", about 5-10min to the hotel.
(If you decide to fly to Copenhagen, then there's a train connection of about 3-3.5 hours to Gothenburg central station)