The cheapest way to the airport. Nothing listed is quicker.
Tram 31 and green metro line to T-Centralen
31171819 · SLPickup, hours & luggage
Boards at. T-Centralen, on the green metro line to Alvik, changing there to tram 31
One SL single covers the tram and the metro for 75 minutes: SEK 43, or SEK 26 for under-20s, students and over-65s. Under-7s ride free, and an adult may take up to six children aged 7 to 11 free.
Hours. These are tram 31's departures from Alvik: from 05:13 on weekdays and 05:33 at weekends, until 23:17 on weekdays and 23:22 at weekends. The green line takes 13 minutes from T-Centralen to Alvik, so set off at least that much earlier.