On the other hand, the train traffic is still at a standstill in Hallsberg, which connects the western main line with other railway networks in the country.
The weather is behind the delays.
It's thunder that has caused quite significant problems during the night, says Daniel Mossberg, press spokesperson at the Swedish Transport Administration.
The forecast is that the traffic for Linköping and the southern main line will be up and running at 1 pm, although with some subsequent delays.
No forecast
On the other hand, the situation is unclear for the traffic on the western main line.
I just asked the traffic management if they could provide a reliable forecast, but they couldn't give one.
The traffic in the rest of the country will be affected in different ways.
Between Linköping and Norrköping, there are more than ten minutes of delay as it looks now. The trains around Göteborg and down to Malmö are generally on time.
Hopefully, the traffic will be able to roll on fairly normally as soon as possible, says Daniel Mossberg.
"Driven buses"
During the night, many passengers have been stranded on the trains due to the massive delays. But SJ says that they no longer have any stranded people on the trains.
I think that when it comes to SJ's travelers, we have handled this during the night. We have driven buses between Mjölby and Linköping.
"We have tried to find new travel alternatives for canceled departures, but unfortunately, we do not have the opportunity to arrange replacement traffic to the extent required", writes SJ on its website.
It is unclear whether there are still stranded travelers from other companies. A Snälltåg from Stockholm to Berlin that was standing still in Linköping for eleven hours started rolling again at 5 am, reports DN. The stop was due to a lightning strike, according to Snälltåget.