DIRECTIONS FROM ARLANDA AIRPORT
Arlanda Airport is well connected to the Central Station (Cityterminalen). You can choose between a 35-40 minutes ride by bus (Flygbussarna) for around 100kr, or a 20 minute ride by fast train (Arlanda Express) for more than double that price.
Flygbussarna tickets can be bought on the bus with any major credit card (cash is not accepted).
Once you get to Cityterminalen enter the terminal hall and turn to the right, following the signs for the Tunnelbana (a blue T logo). Inside the station you can buy a single ticket in the SL center or you can also buy the more convenient SL access card, depending on how long you are staying. Note that single ride tickets are very expensive in Stockholm.
FROM T-CENTRALEN
From the Tunnelbana station, T-centralen, take the red line in the direction Mörby Centrum, get off at Tekniska Högskolan (three stops). Take the labelled Körsbärsvägen exit, and the staircase to your right after the entrance.
You reach the Albanova University Centre in about 10 minute walk or riding bus 61 to the Ruddamen stop. You find the bus stop just 50 meters ahead from the Tunnelbana exit. The same ticket you used on the Tunnelbana will be valid on the bus (if used within 75 minutes).
BY TAXI FROM ARLANDA TO OSKAR KLEIN CENTRE
Taking a taxi from Arlanda to anywhere in central Stockholm will cost approximately 450-500 SEK. Make sure to ask for the fixed Arlanda-Stockholm price! This price will be posted on the taxi itself. Taking a taxi anywhere within central Stockholm will cost approximately 150 SEK. Taxis accept all major credit cards.
Some taxi companies are: Stockholm Transfer (+46) (0)20-350000, Taxi Stockholm: (+46) (0)8-150000, Taxi 020: (+46) (0)20-202020, and TaxiKurir: (+46) (0)8-300000.