The average train between Flensburg and Sønderborg takes 1h 34m and the fastest train takes 1h 32m. The train service runs several times per day from Flensburg to Sønderborg. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 4 hours between Flensburg and Sønderborg. The earliest departure is at 6:05 AM in the morning, and the last departure from Flensburg is at 10:05 PM which arrives into Sønderborg at 1:30 AM. All services require a transfer, and take on average 1h 34m. The schedules shown below are for the next available departures.

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1h 34m • 1 changeWant to know about travelling from Flensburg to Sønderborg? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Flensburg to Sønderborg. However, there are services departing from Flensburg station and arriving at Sønderborg St. station via Tinglev St. station. The journey, including transfers, takes approximately 1h 34m.
Flensburg to Sønderborg train services, operated by Danish Railways (DSB), depart from Flensburg station.
Flensburg to Sønderborg train services, operated by Danish Railways (DSB), arrive at Sønderborg St. station.
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The distance between Flensburg and Sønderborg is 26.3 km. The road distance is 37 km.
You can take a train from Flensburg to Sønderborg St. via Tinglev St. in around 2h.