The fastest way to the airport from Stockholm Central Station is the Arlanda Express high-speed train service, making the trip in 20 minutes.

It is possible to use the Stockholm commuter rail (Pendeltåg) between Uppsala C and central and southern Stockholm.
The route takes 38 minutes between Arlanda C station and Stockholm C. The fare is higher from Arlanda compared to other journeys on the commuter rail network because the railway to Arlanda is privately owned, with passengers over 18 having to pay a passage fee of 120SEK to enter or exit the airport.
The fastest way to the airport from Stockholm Central Station is the Arlanda Express high-speed train service, making the trip in 20 minutes.
It is possible to use the Stockholm commuter rail (Pendeltåg) between Uppsala C and central and southern Stockholm. The route takes 38 minutes between Arlanda C station and Stockholm C. The fare is higher from Arlanda compared to other journeys on the commuter rail network because the railway to Arlanda is privately owned, with passengers over 18 having to pay a passage fee of 120SEK to enter or exit the airport.
Stockholm Arlanda Airport