Taxi Takes 45 minutes. Ask for a fixed rate before getting in the taxi. We recommend Taxi Stockholm (from SEK 520).
Arlanda Express to the central train station
The trip takes 20 minutes and costs approximately 280 SEK. The often have special groups, weekend and holiday offers. Check their website for these prices. From the Central Station you can either take a taci or subway (see above).
By commuter train to Södra Station
The commuter train station, Arlanda C, is located between terminals 4 & 5. The trip takes 43 minutes and costs SEK 125. If you buy a SL Card (good for all subways, commuter trains, buses and some ferries) there is only a SEK 75 surcharge. Södra Station (Swedenborgsgatan exit) is located just 4 blocks from The Rival Hotel. Turn left onto Swedenborgsgatan and continue to Mariatorget square. Trains depart twice an hour.
Airport bus to the central train station
The trip takes around 45 minutes and costs SEK 119 (SEK 99 if you book online). From the Central train station you can either take a taxi or a subway (see above).