High-speed route
Koralmbahn
Graz → Klagenfurt · Austria
Austria’s game-changer of December 2025: the 33 km Koralm Tunnel cuts Graz–Klagenfurt from nearly three hours to 45 minutes, forging a new Baltic–Adriatic high-speed axis.
- Distance
- 127 km
- Fastest time
- 41 min
- Average speed
- 186 km/h
- Top speed
- 250 km/h
Stations
- 0 kmGraz Hauptbahnhof +5
- 37 kmWeststeiermark +1
- 74 kmSt. Paul im Lavanttal +1
- 125 kmKlagenfurt Hauptbahnhof +3
The stations OpenStreetMap lists for a train that runs this route end to end, in order, with the distance along the line as drawn here. A train may skip some of them. A +N after a station: N other routes on this map stop or end there, and the map draws it as a station where lines meet.
How this line was checked
- Line drawn from OpenStreetMap relation 3551170: the same nodes OpenStreetMap holds for this railway, thinned to within under 25 m of them
- Checked against OpenStreetMap: the whole line lies on real track, a median 4 m from it
- Checked against the running timetable via ÖBB Scotty: our line sits under 100 m from the shape of IC 756
- Wikipedia has an article for this line
- See for yourself: open this line on the map with OpenStreetMap's own railway drawn underneath it
Questions and answers
How long is the Koralmbahn?
The Koralmbahn runs 127 km from Graz to Klagenfurt.
How long does the Koralmbahn take?
The fastest scheduled journey is 41 min for the 127 km. That is an average of 186 km/h end to end. The line's top service speed is 250 km/h.
Who runs the Koralmbahn?
ÖBB.
How old is the Koralmbahn?
The line has been in service since 2025. That is the year the atlas dates it from: for a modern brand running over an older railway, it is the railway's date, not the brand's.
How often does the Koralmbahn run?
34 direct trains on a weekday (counted on 2 September 2026).
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