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Train Aachen ↔ Flensburg

Travel smart, spend less

Train tickets starting from just €6.99.

Guaranteed Seat

No standing, no stress. Every FlixTrain ticket comes with a guaranteed seat reservation.

Fast & convenient

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What to expect of your trip

Fast, easy, and affordable options from Aachen to Flensburg

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Train stations in Aachen

Please note: your ticket will contain the most up-to-date address information.

Onboard services are subject to availability

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Yes, trains from Aachen to Flensburg are wheelchair accessible, and we offer free transport for wheelchairs, walking aids and other mobility aids. Assistance dogs travel free — just contact customer service at least 36 hours before departure to add them to your booking. For full details, visit our reduced mobility page.
You can book a Aachen to Flensburg train on the FlixTrain app or at flixtrain.de. Just enter your departure and destination, pick a travel date, and select your train. The app also stores your ticket so you have it ready to go.
Train tickets from Aachen to Flensburg start from 78,48 €. Prices vary by travel date and demand, so booking early usually gets you the best fare.
No, you don't need to print your ticket. After booking your train from Aachen to Flensburg, you'll receive a confirmation email with a QR code. You can show this on your phone or in the FlixTrain app when boarding.
Yes, use the real-time tracker to check the status of your train from Aachen to Flensburg. Enter your station or booking number to see live updates.
Every ticket for the train from Aachen to Flensburg includes a guaranteed seat. You can also upgrade to a preferred seat during the booking process, availability and fees vary by route. Visit the seat reservations page for details.
FlixTrain offers several secure payment methods including card payments, PayPal, Google Pay and more. You'll see all available options at checkout when booking your train from Aachen to Flensburg. If you need help, visit our help page.
Book early and be flexible with your travel dates for the best fares on the train from Aachen to Flensburg, with tickets starting from 78,48 €. Midweek and off-peak trains tend to be cheaper. Book at flixtrain.de or on the FlixTrain app.
Yes, you can take your bike on the train from Aachen to Flensburg by reserving a bike space during booking. For details on availability and pricing, visit our bike transport page.
Your ticket for the train from Aachen to Flensburg includes one carry-on bag and one checked bag. For additional or special luggage options, visit our luggage page.
Yes, trains from Aachen to Flensburg have free Wi-Fi. Power outlets are available onboard, though availability may vary by seat. We recommend bringing a charger for longer journeys.
Trains from Aachen to Flensburg offer free Wi-Fi, a guaranteed seat, power outlets and toilets onboard. For more details, visit our onboard services page.
We recommend arriving at the station in Aachen at least 15 minutes before your train to Flensburg is scheduled to depart.
There are 2 daily train departures from Aachen. The first train departs at 07:51 and the last at 15:51. Check flixtrain.de for the latest timetable.
The first train from Aachen to Flensburg departs at 07:51. We recommend booking early for the best fares.
The last train from Aachen to Flensburg departs at 15:51. Check flixtrain.de for the latest timetable.
There are 2 daily trains from Aachen to Flensburg. The first departs at 07:51 and the last at 15:51.
The train from Aachen to Flensburg takes as little as 7 hours 48 minutes. Travel time can vary depending on the service, so check exact times when booking at flixtrain.de.

Looking for train tickets from Aachen to Flensburg?

Look no further, we’ve got all the details you need to plan your trip! The journey Aachen to Flensburg takes as little as 7 hours 48 minutes and can cost as little as 78,48 €. The first train leaves at 07:51 and the last train leaves at 15:51. FlixTrain runs 2 rides each day between Aachen and Flensburg and when travelling with FlixTrain, you can expect free Wifi, power sockets and a guaranteed seat for your journey.