The average train between Aachen and Flensburg takes 9h 7m and the fastest train takes 7h 23m. The train service runs several times per day from Aachen 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 4 hours between Aachen and Flensburg. The earliest departure is at 2:59 AM at night, and the last departure from Aachen is at 9:26 PM which arrives into Flensburg at 9:41 AM. All services require a transfer at Duesseldorf Hbf and take an average of 9h 7m. The schedules shown below are for the next available departures.
Arrives next day


14h 17m • 2 changes
Arrives next day


12h 15m • 2 changes


8h 42m • 2 changes


8h 15m • 2 changes


8h 15m • 2 changes


8h 15m • 2 changes


7h 42m • 2 changes


8h 15m • 2 changes


8h 15m • 2 changes


8h 15m • 2 changes


7h 42m • 2 changes


8h 15m • 2 changes


7h 23m • 2 changes


8h 15m • 2 changes


7h 42m • 2 changes


8h 15m • 2 changes


7h 23m • 2 changes


8h 15m • 2 changes
Want to know about travelling from Aachen 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 Aachen to Flensburg. However, there are services departing from Aachen station and arriving at Flensburg station via Duesseldorf Hbf. The journey, including transfers, takes approximately 9h 7m.
Aachen to Flensburg train services, operated by National Express, depart from Aachen West station.
Aachen to Flensburg train services, operated by National Express, arrive at Flensburg station.
Book your Aachen to Flensburg train tickets online with National Express, Deutsche Bahn Intercity (DB IC) and 2 other operators.
The distance between Aachen and Flensburg is 499.4 km. The road distance is 644 km.
You can take a train from Aachen West to Flensburg via Duesseldorf Hbf, Düsseldorf Hbf, and Hamburg Hbf in around 7h 48m.