There is no train station in Étretat. The nearest stations are at Bréauté-Beuzeville (20 minutes by bus or taxi), on the Paris–Le Havre TGV/Intercités line, and Le Havre (40 minutes by bus). Both are well connected to Paris (about two hours from Saint-Lazare to Le Havre by Intercités).
From the airports, Paris-CDG is about two and a half hours by car; Beauvais and Deauville are closer alternatives if you can find a flight. Most international visitors come by car as part of a Normandy loop.
A regional bus (Cars Région Normandie, line 24 from Le Havre) connects the town to Le Havre and Fécamp; the timetables are sparse and weekend schedules thin. By car the drive from Paris is around two and a half hours via the A13 and A29 motorways; parking in town is metered and limited in summer.