The average train between Duisburg and Flensburg takes 6h 28m and the fastest train takes 5h 52m. The train service runs several times per day from Duisburg to Flensburg. 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 3 hours between Duisburg and Flensburg. The earliest departure is at 2:58 AM at night, and the last departure from Duisburg is at 7:47 PM which arrives into Flensburg at 7:43 AM. All services require a transfer, and take on average 6h 28m. The schedules shown below are for the next available departures.

6h 43m • 1 change

5h 54m • 1 change

5h 54m • 1 change

5h 55m • 1 change

6h 43m • 1 change

5h 54m • 1 change

5h 54m • 1 change

5h 55m • 1 change

5h 54m • 1 change

5h 54m • 1 change

5h 55m • 1 change

5h 54m • 1 change

6h 38m • 1 change

5h 54m • 1 change

5h 54m • 1 change

5h 55m • 1 change
Want to know about travelling from Duisburg to Flensburg? 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 Duisburg to Flensburg. However, there are services departing from Duisburg station and arriving at Flensburg station via Hamburg Hbf. The journey, including transfers, takes approximately 6h 28m.
Duisburg to Flensburg train services, operated by Deutsche Bahn Intercity (DB IC), depart from Duisburg Hbf station.
Duisburg to Flensburg train services, operated by Deutsche Bahn Intercity (DB IC), arrive at Flensburg station.
Book your Duisburg to Flensburg train tickets online with Deutsche Bahn Intercity (DB IC) and Deutsche Bahn Regio (DB Regional).
The distance between Duisburg and Flensburg is 413.2 km. The road distance is 557 km.
You can take a train from Duisburg Hbf to Flensburg via Hamburg Hbf in around 6h 7m.