Question: how long does it take to get from paris nord to paris gare lyon?
Answer: RER (like the Metro, but simpler) The journey between Paris-Nord and Paris-Lyon takes 15 minutes, with trains running every six minutes. A ticket costs about 2€, and you can save time by buying a carnet of 10 from a Eurostar or TGV cafe-bar. Allow 50 minutes for the transfer in total.