A new airport replacing Bromma at the southern tip of Stockholm. Connecting to this is a new highway from Förbifart Stockholm to Nynäshamn with a stop at the airport.
Then a second line of the commuter train from Arlanda to Södertälje Syd via the new airport and mostly on the commuter train track between Nynäshamn and Älvsjö, then continuing on a route between Älvsjö and Bromma through Helenelund. This trip from Södertälje through Arlanda will take roughly 35-40min depending on the number of stops.
Total possible stops
Södertälje Syd (Trains, commuter trains)
Ösmo Airport
Haninge/Handen
Älvsjö (Commuter trains)
Hägerstensåsen (T-röd)
Axelsberg (T-röd)
Bromma Syd (St. Mossen - T-grön)
Bromma Norr
Rissne (T-blå)
Kymlinge (T-blå)
Helenelund (Commuter trains)
Some will be with normal commuter trains, some will be the A-train with 2-3 stops per line in total (30min between the airports).
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