Line by Line 2025

In the table below, you can see the punctuality for each line as well as the average performance month by month.

Traffic overview

Total 2025

Overall punctuality for 2025 was 87%, an increase of one percentage point compared with 2024. The lowest punctuality was recorded in January, when several external factors negatively affected operations, including trees on the tracks, wildlife collisions, and infrastructure failures. During the other months, punctuality varied between 84% and 92%.

During the autumn, speed restrictions linked to track works and the construction of the new railway Ostlänken caused many delays on the Norrköping–Nyköping–Stockholm line, as they had not been incorporated into the timetable. At the same time as the new 2026 timetable came into effect in December 2025, travel times on the line were adjusted, which significantly improved punctuality during the last month of the year.

December 

December was the most punctual month of the year, with 92 percent on-time performance—an increase of 4 percentage points compared with the same period in 2024. All lines except one achieved punctuality of 90 percent or higher.

The speed restrictions on the Norrköping–Nyköping–Stockholm line that caused many delays during the autumn have now been incorporated into the timetable through longer scheduled journey times as of mid-December. This led to a significant improvement in punctuality on this line during December.

Some of the more major delays were caused by the evacuation of a train in Södertälje, which resulted in extensive knock-on delays, a signalling system failure in Eskilstuna, and several incidents involving unauthorized persons on the tracks.

November

88 percent of our trains were on time in November, an increase of four percentage points compared with the same period last year. The Uppsala–Gävle line had the highest punctuality (95 percent) and also very few trains were cancelled—only 1 percent. The Norrköping–Nyköping–Stockholm line still had the lowest punctuality, at 74 percent, due to speed restrictions at several locations.

Numerous incidents involving unauthorized persons on the tracks—mainly in Uppsala, Stockholm, Eskilstuna, and Knivsta—as well as electrical faults in Solna and signal system failures in Huddinge were other causes of major delays.

October

In October, 87 percent of the trains were on time. The main causes of delays during the month were an overhead line fault in Stockholm, which caused long delays and affected several of our trains to and from Stockholm, as well as a signal box failure between Eskilstuna and Strängnäs that persisted for an extended period. During the month, the number of incidents involving unauthorized persons on the tracks also increased, leading to traffic stoppages to inspect a section of the line, which caused long delays.

September

Punctuality reached 88 percent in September. As in recent months, traffic was negatively affected by several infrastructure failures in and around Stockholm. Accidents and long service disruptions due to unauthorized persons on the tracks also contributed to this month’s figures.
The Uppsala–Gävle line had the highest punctuality at 95 percent, while the Norrköping–Nyköping–Stockholm route continued to have the lowest. The low punctuality on this route is largely due to track work and speed restrictions that have not yet been fully incorporated into the timetable. We are making timetable adjustments in connection with the T26 schedule to improve the conditions for more trains on this route to run on time.

August

89 percent of trains were on time in August, an increase of five percentage points compared with July. The month was marked by several major signal failures at different locations in the Mälardalen region, which caused disruptions to services. Two incidents of overhead line damage also occurred during the month, leaving several routes without power for an extended period.

The number of trespassers on the tracks continued to rise, and in some cases train services had to be completely halted while the police inspected the track area.

July

The share of trains on time remained at the same level as in June, 84 percent. The severe storm that swept across Mälardalen at the beginning of July caused major disruptions to rail traffic. Several trees fell onto both tracks and overhead lines, which led to canceled departures and delays on several routes. During the month, several signal failures also occurred at different locations in Mälardalen. The reduced punctuality on the Stockholm–Nyköping–Norrköping and Hallsberg–Katrineholm–Stockholm lines was due to reduced speeds on the tracks as a result of construction work on the new Ostlänken railway.

June

84 percent of the trains were on time in June, a decrease of four percentage points compared to May. An unusually high proportion, 43 percent, of the additional delay minutes were caused by faults or disruptions in the infrastructure, including several cases of signal and switch failures. A prolonged and extended track maintenance project between Rekarne and Kolbäck led to major delays and canceled trains on several lines, most notably on the Linköping–Eskilstuna–Västerås–Sala–Uppsala route.

May

88 percent of Mälartåg departures were on time in May, an increase of two percentage points compared to April. The Uppsala–Gävle line recorded the highest punctuality, with 95 percent of trains running on schedule. At the same time, services were affected by an extended track maintenance project between Eskilstuna and Västerås, where trains were limited to a speed of 40 kilometres per hour. This caused delays on the Linköping–Eskilstuna–Västerås–Örebro line as well as on other routes. Infrastructure-related issues in the Stockholm area, including a signal failure south of Järna and a switch failure south of Stockholm, also contributed to delays.

April

Punctuality for April was 86 percent, 3 percentage points lower than in March. The biggest impact came from a number of infrastructure faults, which caused significant knock-on delays. At the beginning of the month, a switch malfunction south of Stockholm caused train congestion. During the Easter weekend, a signal failure north of Stockholm led to a traffic halt for several hours and subsequent delays. Numerous incidents involving unauthorized persons on the tracks led to service stoppages and reduced speeds. The Norrköping–Nyköping–Stockholm route has experienced unusually low punctuality in the early part of the year, partly due to speed restrictions that were removed at the end of April.

March

More Mälartåg trains are on time now than at the beginning of the year. In March, punctuality increased by 4 percentage points, reaching 89 percent. The winter has been mild, which has contributed to fewer weather-related causes of delays, and in March there were fewer infrastructure faults than during the first two months of the year. However, the number of incidents involving unauthorized persons on the tracks continued to rise in March, and some of these disturbances led to complete stoppages on the affected routes.

February

Punctuality in February was low, at 85%. During the last week, several incidents occurred that caused major disruptions. These persisted over the following days and were compounded by new faults. This led to many consequential delays throughout the entire system. A switch failure in Södertälje caused a complete halt in traffic. On the same day, several signal failures occurred both north and south of Stockholm. There has been an increase in unauthorized persons in the track area.

January

The year started with low punctuality, totaling 81 percent. The cold temperatures at the beginning of the month primarily affected the infrastructure, with many switches freezing and breaking in various parts of Mälardalen. The trains were also impacted. Power outages caused by fallen trees on the tracks affected several lines, along with an urgent speed restriction south of Stockholm that contributed to prolonged delays for several weeks.