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Köln to Hannover: train or flight?

The train takes about 3 h 03 min with no changes (DB). The two cities are about 250 km apart in a straight line.

At a glance

  • Train time: 3 h 03 min, direct.
  • CO₂ per traveller, one way (estimate): train 1–10 kg, flight 20–35 kg.
  • Airports near Köln: CGN.
  • Airports near Hannover: HAJ.
  • Door to door (estimate): train 3 h 43 min, flight 3 h 15 min. Includes getting to the station or airport, security and boarding.
  • Both ways: Hannover to Köln takes about the same.

Duration from public timetable data for a typical weekday. CO₂ uses UK government (DEFRA 2025) factors; the high end of flying includes non-CO₂ effects. Fares change daily, so check the ticket provider for current prices. Times are not live: check the timetable before you travel.

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