Rouen is on the main train line from Paris Saint-Lazare to Le Havre, with frequent intercity trains making the journey from Paris in 75–90 minutes. Most trains arrive at Gare de Rouen-Rive-Droite, a 10-minute walk from the cathedral.
From the UK, the easiest approach is via Eurostar to Paris and the onward train. By car, the A13 motorway from Paris reaches Rouen in about 90 minutes outside of rush hour. There is no commercial passenger air service to the city.